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Transcript of Abbreviations - Springer LINK
797
Abbreviations
The following list provides a selection of the less common abbreviations used in this
book. Those of common usage such as py, acac, THF, NMR, DFT have been left out.
The abbreviations are listed in alphabetical order. When a number, a Greek letter or another
special character precedes the abbreviation, this is listed ignoring such character.
A
AAMP 4-amino-5-(aminomethyl)-2-methylpyrimidine
aampy 2-acetylamino-6-methylpyridine
acbt anion of 2-amino-4-chlorobenzothiazole
ACR acridine
Acr-4-carboxamide N-[2-(dimethylamino)hexyl]acridine-4-carboxamide
AcrNH2 9-(2-aminoethyl)amino-6-chloro-2-methoxyacridine
AcrNMe2 6-chloro-9-(2-dimethylaminoethyl)amino-2-methoxyacridine
adbtz 11-aminodibenzo[b,f](1,4)thiazepine
admp 2-amino-4,6-dimethylpyridinate
admpym 2-amino-4,6-dimethylpyrimidinate
-Ala alanine zwitterion (+NH3CH2CO2−)
Amb R(-)2-amino-1-butanol
ambt anion of 2-amino-4-methylbenzothiazole
ammpy 2-(aminomethyl)pyridine
amp 2-aminopyridine
ampy 2-amino-6-methylpyridine
AniPyF N,N'-p-anisylpyridylformamidinate
798Multiple Bonds Between Metal AtomsAppendix
ap anion of 2-anilinopyridine
8-aq 8-aminoquinoline
asp 2-acetoxybenzoate
AZ azathioprine
azin anion of 7-azaindole
B
4S-BACIM 2-methyl-1-propyl 1-acetyl-2-oxoimidazolidine-4(S)-carboxylate
BAII bis(pyridylimino-isoindolinate)
bcnp 1,8-naphthyridine-2,7-dicarboxylate
bdppp 2,6-di[(C6H5)2P]pyridine
bhp anion of 6-bromo-2-hydroxypyridine
BINO binaphthoxide
BNAZ or 4S-BNAZ benzyl-2-oxoazetidine-4(S)-carboxylate
BNOX or 4S-BNOX 4(S)-benzyl-2-oxooxazolidine
bpa bis(2-pyridylmethyl)amine
BPAP 2,6-bisphenylaminopyridinate
bpbg biphenylbiguanide
bpnp 2,7-bis(2-pyridyl)-1,8-naphthyridine
4S-BPPIM 2-methyl-l-propyl 1-(3-phenylpropanoyl)-2-oxoimidazolidine-4(S)-carboxylate
bpynap 2,7-bis(2-pyridyl)-1,8-naphthyridine
1,4-bq 1,4-benzoquinone
Br2calix[4]arene(CO2H)2 25,26,27,28-tetrapropoxy-5,17-dibromo-calix[4]arene-11,23-dicarboxylic acid
5-Brsalpy (2-pyridyl)-2-oxy-5-bromobenzylaminato
btmp (benzylthiomethyl)diphenylphosphine
btp 2,6-bis-(N'-1,2,4-triazolyl)pyridine
But2bipy 4,4'-bis(tert-butyl)-2,2'-bipyridine
But-H2S4 1,2-bis(2-mercapto-3,5-di-Butphenylthio)ethane
4-But-py 4-tert-butylpyridine
But-salophen N,N'-o-phenylenebis(salicylidenamine)
799Multiple Bonds Between Metal Atoms
Appendix
C
CH3N[P(OCH2CH3F3)2]2 bis(bis(trifl uoroethoxy)phosphine)methylamine
C4H4NCO2 pyrrole-2-carboxylate
C4H3SCO2 thiophene-2-carboxylate
C4H3SCONH thiophene-2-amidate
C10H15CO2 1-adamantylcarboxylate
calix[4]arene(CO2H)4 25,26,27,28-tetra-n-propoxycalix[4]arene-5,11,17,23-tetracarboxylic acid
cap caprolactamate (anion of 1-aza-2-cycloheptanone)
carb anion of carboline
CEP P(NCCH2CH2)3
4S-CHAZ cyclohexyl 2-oxoazetidine-4(S)-carboxylate
chea 1-cyclohexylethylamine
CHIP anion of 1'-3'-dihydrospiro[cyclohexane-1,2'-[2H]imidazo-[4,5b]pyridine
chp anion of 6-chloro-2-hydroxypyridine
5-Clsalpy (2-pyridyl)-2-oxy-5-chlorobenzylaminate
Cl-tpy 4'-chloro-2,2':6,2"-terpyridine
CNPh phenylisocyanide
CNPhCF3 trifl uoromethylphenylisocyanide
CNPhNMe2 p-dimethylaminophenylisonitrile
4-CN-py 4-pyridinecarbonitrile
COD cycloocta-1,5-diene
COT 1,3,5,7-cyclooctatetraene
(S,R)-CPFA-P (S,R)-(1-N,N'-dimethylaminoethyl)-2-(dicyclohexylphosphi-no)-ferrocene
18-crown-6 the crown ether 1,4,7,10,13,16-hexaoxacyclooctadecane
Cy cyclohexyl or c-C6H11
cyt cytosine
D
daapy 2,6-diacetylaminopyridine
dabco 1,4-diazabicyclooctane
800Multiple Bonds Between Metal AtomsAppendix
dach 1,2-diaminocyclohexane
damt 2,4-diamino-6-methyl-s-triazine
DAniF N,N'-di-p-anisylformamidinate
DAnimF N,N'-di-m-anisylformamidinate
DAnioF N,N'-di-o-anisylformamidinate
dapy 2,6-diaminopyridine
DArF N,N'-diarylformamidinate
DClPhF N,N'-di-p-chlorophenylformamidinate
DCl2PhF [(3,5-Cl2C6H3)2N)2CH]
DCNNQI N,N'-dicyanonaphthaquinone diimine
DCyF N,N'-dicyclohexylformamidinate
DDA 2,3,5,6-tetramethyl-p-phenylenediamine (durenediamine)
dedp Et2PCH2CH2PPh2
DEtBz N,N'-di(ethyl)benzamidinate
depa 4,4'-diethyl-2,2'-dipyridylamide
depe CH3CH2PCH2CH2PCH2CH3
dFMEPY or 5S-dFMEPY methyl-(5S)-3,3-difl uoro-2-oxopyrrolidine-carboxylate
dGuo deoxyguanosine
diglyme CH3O(CH2)2O(CH2)2OCH3
DMAD dimethyl acetylene dicarboxylate
dimen 1,8-di-isocyanomenthane
dimenol 5,7-dimethyl-1,8-naphthyridine-2-ol
dippp Pri2P(CH2)3PPri
2
DMAA or dma N,N'-dimethylacetamide
DMAP or 5S-DMAP N,N'-dimethyl-2-pyrrolidone-5(S)-carboxamide
dmapd 2,6-dimethyl-4-aminopyrimidine
dmat 4,5-dimethyl-2-methylaminothiazolato
2,3-dmbq 2,3-dimethyl-1,4-benzoquinone
DM-DCNQI 2,5-dimethyl-N,N'-dicyanoquinonediimine
dmdppm Ph2PCH2PMe2
dme dimethoxyethane, CH3O(CH2)2OCH3
DMeBz N,N'-di-methylbenzamidinate
801Multiple Bonds Between Metal Atoms
Appendix
DMeODMBz N,N'-dimethyl-3,5-dimethoxybenzamidinate
dmf dimethylformamide
dmg anion of dimethylglyoxime
dmhp anion of 2, 4-dimethyl-6-hydroxypyrimidine
dmmp anion of 4,6-dimethyl-2-mercaptopyrimidine
dmopehhypy 1,3-dimethyl-2,4-dioxo-9-(1-phenylethyl)-1,3,6,7,8,9-hexa-hydropyrimido[2,1-f]purine
dmp anion of 2,6-dimethylpyridine
dmpe bis(dimethylphosphino)ethane, Me2P(CH2)2PMe2
dmph anion of 2,4-dimethyl-6-oxopyrimidine
dmpm bis(dimethylphosphino)methane, Me2PCH2PMe2
dmptsczda dimethyl-4-phenylthiosemicarbazidediacetate
dmpyethybz 1,2-dimethoxy-4,5-bis[(2-pyridyl)ethynyl]benzene
DMPyF N,N'-5,5'-dimethyl-2,2'-dipyridylformamidinate
Dm-MePhF [(m-MeOC6H4N)2CH]
DMSO or dmso dimethylsulfoxide
DMTF N,N'-dimethylthioformamide
DOSP N-dodecylbenzenesulfonylprolinate
dpa anion of 2,2'-dipyridylamine
dpae Ph2AsCH2CH2AsPh2
dpam bis(diphenylarsino)methane, Ph2AsCH2AsPh2
dpapm diphenylarsinodiphenylphosphinomethane, Ph2PCH2AsPh2
DPB diporphyrinatobiphenylene
dpcp Ph2PCH(CH2)3CHPPh2
dpdbp Ph2PCH2CH2P(p-ButC6H4)2
dpdt Ph2PCH2CH2P(p-tol)2
DPhAc [PhNC(CH3)NPh]
DPhBz N,N'-diphenylbenzamidinate
DPhF N,N'-diphenylformamidinate
Dp-BrPhF (p-BrC6H4N)2CH−
Dp-ClPhF (p-ClC6H4N)2CH−
Dp-FPhF (p-FC6H4N)2CH−
802Multiple Bonds Between Metal AtomsAppendix
DPh3,5-diClF N,N'-di-3,5-dichlorophenylformamidinate
DPhFF N,N'-di-p-fl uorophenylformamidinate
DPhm-ClF N,N'-di-m-chlorophenyl-formamidinate
DPhIP anion of 2,6-di(phenylimino)piperidine
DPhTA N,N'-di-phenyltriazenate
DPmF dipyrimidinylformamidinate
dpmp (Ph2PCH2)2PPh
dpnapy 2,7-bis(diphenylphosphino)-1,8-naphthyridine
dppa (Ph2P)2NH
dppb Ph2PCH(Me)CH(Me)PPh2
dppbe 1,2-bis(diphenylphosphino)benzene
dppe 1,2-bis(diphenylphosphino)ethane, Ph2P(CH2)2PPh2
dppee cis-Ph2PCH=CHPPh2
dppm bis(diphenylphosphino)methane, Ph2PCH2PPh2
dppma (Ph2P)2NMe
dppn benzo[i]dipyrido[3,2-a:2',3'-c]phenazine
1,3-dppp Ph2P(CH2)3PPh2
dppz dipyrido[3,2-a:2',3'-c]phenazine
DPyF N,N'-di-2,2'-pyridylformamidinate
ds-im dansyl-imidazole
ds-pip dansyl-piperazine
DTBN di-But-nitroxide
dtd 4,7-dithiadecane
dtdd 5,8-dithiadodecane
DTolF N,N'-di-p-tolylformamidinate
DTolTA N,N'-di-p-tolyltriazenato
DV-X discrete variational calculations
DXyl2,6F N,N'-di-2,6-xylylformamidinate
E
EMAC extended metal atom chain
en" N,N�-dimethylethylenediamine, CH3(H)N(CH2)2N(H)CH3
803Multiple Bonds Between Metal Atoms
Appendix
EPPIM ethyl 1-(3-phenylpropanoyl)-2-oxoimidazolidine-4(S)-carboxylate
ESBO edge-sharing bioctahedra
9-EtAdeH 9-ethyladenine
9-EtGH or 9-EtGuaH 9-ethylguanine
etpda diethyltripyridyldiamide
1-EtT anion of 1-ethylthymine
F
2-Fap anion of (2-fl uoroanilino)pyridine
2,5-F2ap anion of 2-(2,5-difl uoroanilino)pyridine
2,6-F2ap anion of (2,6-difl uoroanilino)pyridine
2,4,6-F3ap anion of (2,4,6-trifl uoroanilino)pyridine
F5ap anion of (2,3,4,5,6-pentafl uoroanilino)pyridine
FcCO2 ferrocenecarboxylate
Fcpe 3-ferrocenyl-2-propenate
FHMO Fenske-Hall Molecular Orbital
fhp anion of 6-fl uoro-2-hydroxypyridine
form any formamidinate ligand
FPhPyF N,N'-p-fl uorophenylenepyridylformamidinate
FSBO face-sharing bioctahedron
G
gly glycine
GudH guanidinium cation
guH2 guanine
Guo guanosine
H
Hadmp 2-amino-4,6-dimethylpyridine
HBPAP 2-(PhN)-6-(PhN)py
Hdpa bis-2-(pyridyl)amine
HDPhTA N,N'-diphenyltriazine
HDXyl2,6F N,N'-di-2,6-xylylformamidine
804Multiple Bonds Between Metal AtomsAppendix
hedp 1-hydroxyethylidenediphosphonato
hfacac hexafl uoroacetylacetonato
H-H head-to-head
Hhq 2-quinolinol
Hmhq 4-methyl-2-quinolinol
Hmphonp 5-methyl-7-phenyl-1,8-naphthyridin-2-one
hp anion of 2-hydroxypyridine
H2pc phthalocyanine
hpp anion of 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidine
1R,2R,5S-hprmph 1R,2R,5S-2-hydroxy-5-isopropenyl-2-methylcyclohexyl-diphenylphosphane
1S,2S,5R-hprmph 1S,2S,5R-2-hydroxy-5-isopropenyl-2-methylcyclohexyl-diphenylphosphane
Hpyro 2-pyrrolidinone
H-T head-to-tail
H2TMP tetramesitylporphyrin
Hvall 2-piperidinone ( -valerolactam)
I
4S-IBAZ isopropyl 2-oxoazetidine-4(S)-carboxylate
Im imidazole
IMMe 2,4,4,5,5-pentamethyl-4,5-dihydro-1H-imidazolyl-1-oxy
indenyl C9H7−
Ino inosine
4S-IPOX isopropyl 2-oxooxazolidine-4(S)-carboxylate
L
lut lutidine
M
MACIM or 4S-MACIM methyl 1-acetyl-2-oxoimidazolidine-4(S)-carboxylate
mand mandelate ( -hydroxy- -phenylacetate, PhCH(OH)CO2 )
MANIM or S,S-MANIM mandaloylimidazolidinone-4-carboxylate or methyl 4(S)-1-[(2'S)-methoxy-2'-phenylacetyl]-2-oxoimidazolidine-4-carboxylate
805Multiple Bonds Between Metal Atoms
Appendix
map anion of 2-amino-6-methylpyridine
MBOIM or 4S-MBOIM methyl 1-benzoyl-2-oxoimidazolidine-4(S)-carboxylate
mbzap 2-(( -methylbenzylidene)amino)pyridine
MCHIM or 4S-MCHIM methyl 1-(cyclohexylacetyl)-2-oxoimidazolidine-4(S)-carboxylate
MDMIM methyl 1-(d-menthoxyacetyl)-2-oxoimidazolidine-4(S)-carboxylate
9-MeAdeH 9-methyladenine
1-MeAdo 1-methyladenosine
2-Meap 2-(2-methylanilino)pyridinate
4S-MEAZ methyl 2-oxoazetidine-4(S)-carboxylate
1-MeC anion of 1-methylcytosine
1-Mecyd 1-methylcytosine
Me-DuPHOS (+)-1,2-bis(2S,5S)-2,5-dimethylphospholano)benzene or its corresponding R enantiomer
Me-Im or 1-MeIm N-methylimidazole
menapo 7-methyl-1,8-naphthyridin-2-onato-N,N'
MENTHAZ menthyl 2-oxoazetidine-4(S)-carboxylate
mentholate anion of menthol
meonp 7-methyl-1,8-naphthyridin-2-one
MEOX or 4S-MEOX methyl 2-oxooxazolidine-4(S)-carboxylate
4,7-Me2phen 4,7-dimethyl-1,10-phenanthroline
3,4,7,8-Me4phen 3,4,7,8-tetramethyl-1,10-phenanthroline
mephnapoN,N' 5-methy-7-phenyl-1,8-naphthridin-2-onato-N,N'
mephnapoN,O 5-methy-7-phenyl-1,8-naphthridin-2-onato-N,O
mephonp 5-methyl-7-phenyl-1,8-naphthyridin-2-one
4S-MPAIM methyl 1-phenylacetyl-2-oxoimidazolidine-4(S)-carboxylate
4S-MPOX 4(S)-methyl-5(S)-phenyl-2-oxooxazolidine
4S-MPPIM methyl 1-(3-phenylpropanoyl)-2-oxoimidazolidine-4(S)-carboxylate
MEPY or 5R-MEPY methyl 2-oxopyrrolidine-5(R)-carboxylate
4-Mepy 4-methylpyridine
4-Mepyms anion of 4-methylpyrimidine-2-thione
806Multiple Bonds Between Metal AtomsAppendix
4-MepyS anion of 4-methyl-2-mercaptopyridine
5-MepyS anion 5-methylpyridine-2-thiolate
3,5-Me2pz anion of 3,5-dimethylpyrazole
Mepyzca anion of 2-methylpyrazine-5-carboxylic acid
Mes mesityl, 2,4,6-C6H2(CH3)3
5-Mesalpy (2-pyridyl)-2-oxy-5-methylbenzylaminato
1-MeT anion of 1-methylthymine
metro metronidazole
1-MeU anion of 1-methyluracil
mhp anion of 6-methyl-2-hydroxypyridine
m-MeODMB dimethyl-3-methoxybenzamidinate
MLMIM methyl 1-(l-menthoxyacetyl)-2-oxoimidazolidine-4(S)-carboxylate
mmtz 5-methylthio-2-mercaptothiadiazolinate
m-nitpy 2-(3-pyridyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl-3-N-oxide
mpa -methoxy- -phenylacetate
mphamnp 2-acetamido-5-methyl-7-phenyl-1,8-naphthyridine
MPP 2-methoxyphenylphosphine
MPPIM or 4S-MPPIM methyl 1-(3-phenylpropanoyl)-2-oxoimidazolidine-4(S)-carboxylate
2-mq anion of 2-mercaptoquinoline
mtfpa (R)- -methoxy- -(trifl uoromethyl)phenylacetate
mtz 2-mercaptothiazolinate
N
Nap naphthyl
NaphthAZ (R)-1-naphthalen-1-yl-ethyl 2-oxoazetidine-4(S)-carboxylate
NCPhCN 1,4-dicyanobenzene
5S-NEPY neopentyl 2-oxopyrrolidine-5(S)-carboxylate
Nic N-nitroxyethyl-nicotinamide
nitet 2-ethyl-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl-3-N-oxide
807Multiple Bonds Between Metal Atoms
Appendix
nitme 2,4,4,5,5-pentamethyl-4,5-dihydro-1H-imidazol-1-oxyl-3-N-oxide
nitph (NITPh) 2-phenyl-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl-3-N-oxide
5-NO2salpy (2-pyridyl)-2-oxy-5-nitrobenzylaminato
np 1,8-naphthyridine
1,4-nq 1,4-naphthoquinone
O
OBQDI o-benzoquinodiimine
O2CArtol 2,6-di(p-tolyl)benzoate
5S-ODPY octadecyl 2-oxopyrrolidine-5(S)-carboxylate
OEP dianion of 2,3,7,8,12,13,17,18-octaethylporphyrin
OMP dianion of 2,3,7,8,12,13,17,18-octamethoxyporphyrin
OTf trifl ate
OTs anion of toluene-p-sulfonic acid
oxodmnp 2-oxo-5,7-dimethyl-1,8-naphthyridine
P
PC orthometalated phosphine
pcp methylenbis(phosphinate), CH2[P(O)OH]22
PCy3 tris(cyclohexyl)phosphine
pdc pyroledithiocarbamate
pdz pyridazine
c-Pen cyclo-C5H10O
peptea pentapyridyltetraamide
Ph2Ppy 2-diphenylphosphinopyridine
phdpda phenyldipyridyldiamide
phen 1,10-phenanthroline
PhIP anion of 2-phenyliminopiperidine
PhNPy anion of 2-anilinopyridine
PHOX or 4S-PHOX 4(S)-phenyl-oxooxazolidine
PhPcF phenylpicolylformamidinate
PhPpy2 phenylbis(2-pyridyl)phosphane
808Multiple Bonds Between Metal AtomsAppendix
phpy anion of phenylpyridine
PhPyBz phenylpyridylbenzamidinate
PhPyF phenylpyridylformamidinate
Phth phthlamide
phz phenazine
plpyz 2-pyrrolyl-1-pyrazine
p nitpy 2-(4-pyridyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl-3-N-oxide
PNP 2,6-di[(C6H11)2P]pyridine
pop pyrophosphate, O[P(O)OH]22
pqdi 9,10-phenanthroquinonediimine
pydz pyridazine, N2C4H4
pymSH pyrimidine-2-thione
pynp 2-(2-pyridyl)-1,8-naphthyridine
pyphos 6-(diphenylphosphino)-2-pyridonate
pypz pyrido[2,3-b]pyrazine
pyrimethamine 2,4-diamino-5-p-chlorophenyl-6-ethylpyrimidine
pyrr -pyrrolidonate, C4H6NO−
pyS anion of 2-mercaptopyridine
pySH 2-mercaptopyridine
pyz pyrazine
pz anion of pyrazole
Q
quin quinuclidine
quinCO 8-quinoline acyl
R
RcCO2 ruthenocenecarboxylate
Roll-3696 1-(2-hydroxy-3-methoxypropyl)-2-methyl-5-nitroimidazole
S
salpy (2-pyridyl)-2-oxy-benzylaminate
SCF-X -SW self consistent fi eld-X -scattered wave
809Multiple Bonds Between Metal Atoms
Appendix
silox OSi(But)3
s-pqdi 9,10-phenanthrosemiquinonediimine
stf-CN [2]staffane-3-carbonitrile
T
TBDMS tert-butyldimethylsilyl
TBSP 1-[(4-But-phenyl)sulfonyl]-(2S)-pyrrolidinecarboxylate
Tcbiim dianion of tetracyanobisimidazole
tclH -thiocaprolactam
TCNE tetracyanoethene
TCNQ 7,7,8,8-tetracyanoquinodimethane
tdpm (Ph2P)3CH
tempo 2,2,6,6-tetramethylpiperidine-1-oxyl
tempol 2,2,6,6-tetramethyl-4-hydroxypiperidinyl-1-oxy
temyl 1,3,4,5-tetramethylimidazol-2-ylidene
teptra tetrapyridyltriamide
tetraphos-1 Ph2P(CH2)2P(Ph)(CH2)2P(Ph)(CH2)2PPh2
tetraphos-2 P(CH2CH2PPh2)3
TFA trifl uoroacetate
tfepma bis(bis(trifl uoroethoxy)phosphino)methylamine,
MeN[P(OCH2CF3)2]2
2-THCO2 2-thienylcarbonylate
3-THCO2 3-thienylcarbonylate
2,5-TH(CO2)2 2,5-thienyldicarboxylate
THREOX or 4S-THREOX threonine-based-oxooxazolidinone-4(S)-carboxylate (5(R)-methyl-2-oxooxazolidine-4(S)-carboxylate)
tht tetrahydrothiophene
TiPB 2,4,6-tri-isopropylbenzoic acid
TMB 2,5-di-isocyano-2,5-dimethylhexane
tmed or tmeda Me2N(CH2)2NMe2, tetramethylethylenediamine
tmph thiamin monophosphate (phosphate ester of vitamin B1)
TMP 2,4,6-trimethoxyphenyl anion
TMPP 2,4,6-trimethoxyphenylphosphine
810Multiple Bonds Between Metal AtomsAppendix
tpyethebz 1,3,5-tris[(2-pyridyl)ethenyl]benzene
tmtaa dianion of 5,7,12,14-tetramethyldibenzo[b,i]-[1,4,8,11]-tetraazacyclotetradecine(benzotetramethyltetraaza[14]annulene)
tmtu or tmu 1,1,3,3-tetramethyl-2-thiourea
TOEP meso-(4'-tolyl)octaethylporphyrin dianion
TolN5Tol di-p-tolylpentaazadienate
TolPyF p-tolylpyridylformamidinate
tpda tripyridyldiamide
TPG or tpg N,N',N"-triphenylguanidinate anion
TPP or tpp tetraphenylporphyrin dianion
tppz 2,3,5,6-tetra-2-pyridylpyrazine
tpy 2,2':6,2"-terpyridine
trimethoprim 2,4-diamino-5-(3',4',5'-trimethoxybenzyl)pyrimidine
triphos Ph2P(CH2)2P(Ph)(CH2)2PPh2
tRNAphe transfer RNA of the amino acid phenylalanine
TTB 2,4,6-tri-p-tolylbenzoate
ttf tetrathiafulvalene
2-TU thiouracil anion
X
Xhp substituted 6-hydroxypyridinate anion
811
A
assemblies containingMo2
4+ complexes ................. 148-168, 222-223Re2
n+ complexes (n = 6, 5 or 4) .........287, 291, 332, 338-340, 357
Rh24+ complexes ................ 483-485, 487-492,
516-518, 548-555Ru2
5+ complexes .................................400-401W2
4+ complexes ........................................188
B
bond energies of M–M bonds ..................721-724
bond lengthsatomic number, dependence on ..........713-715bond order, dependence on .................707-710effect of axial ligands on .....................712-713
bond ordersbond length correction with ...............707-710defi nition of ................................................13
bridging ligands stabilizing metal–metal multiple bonds, classifi cation of .......................18
C
CD spectra of compounds with M–M quadruple bonds ...........................758-760
cobalt compounds, metal–metal bonding in ..............................................451-455
Cr25+ compound ..........................................56-57
Cr24+ compoundsaffect of axial ligation in .........................40-43A-frame-like structures in ...........................64amidate ligands in ..................................50-52
amidinate ligands in ................... 52-55, 58-59bridging amido ligands in ..........49, 57-58, 64carbonate ligands in ....................................38carboxylate ligands in ...........35-43, 46, 55, 61Cr–C bonds in .................43-46, 52-53, 60-61Cr–Cr bond distances in ....... 36-37, 50-51, 54electronic structures of ................................65guanidinate ligands in .................................56intramolecular axial interactions in .........57-59macrocyclic anionic chelating
ligands in ..........................................61-622-methoxyphenyl ligands in ...................43-45N–C–N type divergent-bite ligands in ...62-642-oxophenyl ligands in ...........................45-462-oxopyridinate and related
ligands in ....................................47-50, 59‘super-short’ Cr–Cr bonds in ..................43-50
D
– * transitionsCr2
4+ compounds .......................................750Mo2
5+ compounds ......................................750Mo2
4+ compounds ............... 744-750, 758-759Os2
6+ compounds .......................................757Re2
6+ compounds .......................746, 749, 760Re2
5+ compounds ........................746, 752-753Ru2
5+ compounds ......................................757Tc2
5+ compounds ................ 745-746, 749-751theory of .............................................739-744
double metal–metal bondsIr2
6+ compounds containing .......................457Nb2
6+ compounds containing .................31-32Os2
4+ compounds containing ......438, 442-444Re3
9+ compounds containing ..........................3Re2
6+ compounds containing .............300-301, 331-332
Ru24+ compounds containing ......405-414, 422
Index
812Multiple Bonds Between Metal AtomsIndex
E
electron density maps, calculation of ..............738
electronic absorption spectraCr2
4+ compounds .......................................750effect of pressure on ...................................765Mo2
5+ compounds ......................................750Mo2
4+ compounds ............... 745-750, 753-755Os2
6+ compounds ........................442-443, 757Pt2
6+ compounds .......................................757Re2
6+ compounds ................746, 749, 751-752Re2
5+ compounds ........................746, 752-753Rh2
4+ compounds ...............................756-757Ru2
5+ compounds ......................................757Tc2
5+ compounds ................ 745-746, 749-755
electronic structure calculationsCr2
4+ compounds ................................728-729Mo2
6+ compounds ............... 729-730, 733-738Mo2
5+ compounds ......................................738Mo2
4+ compounds .......................725, 727-729Nb2
4+ compounds ......................................727Os2
6+ compounds .......................................725Pt2
6+ compounds .......................................738Re2
6+ compounds ................................725-727Re2
4+ compounds .......................................738Rh2
4+ compounds ...............727, 731-732, 738Ru2
5+ compounds ...............................732-733Ru2
4+ compounds ..............................727, 733Tc2
5+ compounds .......................................725Tc2
4+ compounds .......................................727W2
6+ compounds ........................729-730, 737W2
4+ compounds ........................725-726, 728
electron paramagnetic resonance spectra .................................... 441-442, 783-785
emission spectra of compounds with M–M quadruple bonds ...........................762-763
EXAFS measurements ............................785-786
excited state distortions of M–M bonded compounds .................................760-761
extended metal atom chains (EMACs)chromium compounds with ...............671-673,
682-683, 686, 698, 703cobalt compounds with ..............686-693, 703copper compounds with .............694, 697-700iridium compounds with ............461-462, 702iron compounds with ................................698ligand bridges present in .... 669-671, 698-700metal–metal distances present in .......674-681,
684-685, 699
nickel compounds with .....................694-697, 700-701, 703
platinum compounds with ................658-661, 702-703
rhodium compounds with .................536-540, 701-702
ruthenium compounds with ...............701-702
F
formal shortness ratios for multiple bonds .......47
H
heteronuclear diatomic compounds[CrMo]4+ core in ...........................43, 145-146[MoOs]n+ core (n = 4 or 5) in ............146, 148,
438-439[MoRe]5+ core in .......................146, 148, 291[MoRu]n+ core (n = 4 or 5) in ....146, 148, 422[MoW]5+ core in .......................................196[MoW]4+ core in ................ 145-148, 196-197[OsW]4+ core in ........................................438[RuOs]4+ core in ................................422, 438[RuW]4+ core in ........................................422
I
internal fl ips of M2 units .........................718-720
internal rotationeffect on bond length of ......................711-712effect of bonding on ........................710-712
Ir26+ compounds ......................................456-457
Ir25+ compounds ......................................455-457
Ir24+ compoundsanionic bridging ligands in ................455-461intramolecular disproportionation in ..456-458Ir–Ir bond distances in .......................455-456
-acceptor ligands in ..........................458-461unsupported Ir–Ir bonds in .......................458
iridium blues ..........................................461-462
iron compounds, metal–metal bonding in ..............................................447-450
isomers of M2X8-nLn speciestypes of .......................................................17mechanisms for the
interconversion of .........................718-720
813Multiple Bonds Between Metal Atoms
Index
M
Mo412+ tetranuclear clusters .....................218-223
Mo48+ compounds of the type
Mo4X8(PR3)4 (X = Cl or I) ......................165-166
Mo26+ compoundsalkoxide ligands in .... 205-207, 210, 213-228,
230-234, 236-237, 239alkynes, reactions with ..............................234amido ligands in ............... 205-206, 210-217,
224-228arsenate ligand bridges in ............................94bonding in triply bonded
Mo2L6 molecules ...........................208-209calixarene ligands in ..................................228carboxylate ligands in ................................229cleavage of triple bond in ...................231-234CO, reactions with .............................232-233COT ligands in ..........................207-208, 210cyclopentadienyl ligands in ................210-211
-diketonate ligands in .............................225ethane-like structures of .....................203-204intramolecular disproportionation in .........226isocyanides, reactions with ........................234Mo–C bonds in ......... 204, 207-208, 210-217,
222-223, 228-229Mo–Mo bond distances in ..204-205, 213, 224Mo2X6-nYn molecules ..........................210-218nitriles, reactions with ........................236-237phosphate ligand bridges in ........................94oxidation of Mo2
4+ compounds to give .......139phosphido ligands in ..................210, 213-216phosphine ligands in .........................223, 228redox chemistry of ..............................230-232thiolate/selenate ligands in ...............208, 213,
215-216, 236triazenate ligands in ..................................227
Mo25+ compoundsoxidation of Mo2
4+ compounds to give .......139phosphate ligand bridges in ........................94sulfate ligand bridges in ......................92, 139
Mo24+ compoundsaffect of axial ligation in ..............................73alkoxide ligands in ..... 116, 134-135, 217-218amidate ligands in ........ 97, 152-153, 156-159amidinate ligands in ....................98, 101-103,
141-142, 155-167anionic N,N bridging ligands in ..98-103, 217anionic O,S and S,S ligands in ............103-105carbonate ligands in ........... 161-163, 167-168
carboxylate ligands in .... 69-92, 106, 138-139, 151-152, 154-158, 160-164, 166-167
cationic complexes of ..........................130-132cleavage of quadruple bond in ............136-137guanidinate ligands in ...............................141halide anions of the type [Mo2X6(H2O)2]
2+
(X = Cl, Br or I) in .......................106-108halide ligands in, see [Mo2X8]
4- ionshomoleptic acetonitrile cations of .......130-131hydride ligands in .....................................142intramolecular disproportionation in .135, 218macrocyclic anionic chelating
ligands in ......................................132-133mixtures of carboxylate with
other anionic ligands in ....................79-92, 99-100, 106
Mo–C bonds in .......... 115-116, 137, 142-145Mo–Mo bond distances in ......... 71-73, 80-84,
92, 96, 106, 115-118, 131-132, 148, 156-157, 161, 163-164
[Mo2X8H]3- salts (X = Cl, Br or I) formed by oxidation of ..................108-110
2-oxopyridinate ligands in ..............95-97, 127phosphine ligands in ................. 77-78, 87-90,
112-130, 137, 142-144polyoxoanion bridges in .........................92-95porphyrin ligands in ...........................132-133redox chemistry of ................. 92-94, 108-110,
127-130, 134, 137-142, 153-154
Mo22+ compound containing
F2PN(CH3)PF2 ligands ...................................138
[Mo2X8]4- ions (X = Cl, Br, CN or
NCS), salts containing molecular structure of ....................69-70, 106synthesis of .............................69, 97, 106-107
Mo2X4(PP)2 compounds (X = halide; PP = bidentate phosphine),
- and - isomers of .......... 113-114, 117-118, 120, 123-129
multiple bonding, distribution within the transition elements ....................16-17
N
Nb26+ compounds, double bonds in ............31-32
Nb24+ compounds7-azaindole ligands in ............................30-31calix[4]arene ligands in ..........................31-32
814Multiple Bonds Between Metal AtomsIndex
guanidinate ligands in ............................29-30Nb–Nb bond distances in ...........................29
nickel compounds, metal–metal bonding in ..............................................633-634
Noddack, Walter and Ida, discovery of rhenium by .............................................271-272
O
ORD spectra, see CD spectra
orientation disorder of M–M units in crystals ...............................................715-718
Os27+ compoundsguanidinate ligands in ...............................435magnetic properties of ...............................439Os–Os bond distances in ...........................435
Os26+ compoundsamidate ligands in .............................432, 441amidinate ligands in ..........................432, 440anionic N,N bridging
ligands in ..............................432-433, 442carboxylate ligands in ......... 432-436, 438-443cleavage of triple bond in ...................434-437electronic structures of .......................439-443halide ligands in, see [Os2X8]
2- ionsmagnetic properties of ........ 435-436, 439-442orthometalated ligands in ...........433-434, 441Os–C bonds in ...................................432-436Os–Os bond distances in ............434-435, 4372-oxopyridinate ligands in ..........432-433, 441phosphine ligands in ..................433-434, 441porphyrin ligands in ...........................434-444redox chemistry of .............................437, 439spectroscopic properties of ..................442-443
Os25+ compoundscarboxylate ligands in .................437-438, 441electronic structures of .......................441-442magnetic properties of ................435, 441-442Os–Os bond distances in ...........................4352-oxopyridinate ligands in ..........437, 441-442phosphine ligands in .................................438porphyrin ligands in ...........................434-444spectroscopic properties of ..................441-442
Os24+ compounds, porphyrin
ligands in .......................................438, 442-444
[Os2X8]2- ions (X = Cl, Br or I), salts containing
cleavage of triple bond in ...................436-437electronic structure of ................................441
molecular structures of ..............................436redox chemistry of ..............................442-443synthesis of ................................................436
P
paddlewheel molecules with unsymmetrical ligands, regioisomers of ...........18
palladium compounds, metal–metal bonding in ..............................................634-636
Peligot, Eugéne-Melchoir, discovery of dichromium (II) carboxylates by .................10-11
photochemical reactions of compounds with M–M quadruple bonds ...................763-765
photoelectron spectra (UV)allyl compounds ........................................775Cr2
4+ compounds ........................766-771, 775M2X6 (M = Mo or W) molecules ........773-774M2Cl4(PMe3)4 compounds
(M = Mo, W or Re) .............................772Mo2
6+ compounds ...............................773-774Mo2
4+ compounds ...............................766-775paddlewheel molecules ....... 766-771, 774-775Re2
6+ compounds .......................................766Re2
4+ compounds ........................772-773, 775Rh2
4+ compounds ......................................774Ru2
4+ compounds ...............................773-774W2
6+ compounds .......................................773W2
4+ compounds ................................766-773
platinum blues .......................................658-661
Pt26+ compoundsamidate ligands in ..............................648-651amidinate ligands in ..................................648anionic N,O bridging ligands in ........648-654anionic N,S bridging ligands in .........655-656carboxylate ligands in .........................646-647electronic structures of ..............................636guanidinate ligands in ...............................6482-oxopyridinate ligands in ..................651-652polyoxoanion bridges in .....................642-643Pt–C bonds in ....................647, 649-653, 661Pt–Pt bond distances in .....................637-641pyrophosphite ligand bridges in .........644-646unsupported Pt–Pt bonds in ...............656-657
Pt25+ compounds .....................................657-658
815Multiple Bonds Between Metal Atoms
Index
Q
quadruple metal–metal bondsCr2
4+ compounds containing ....... 10-12, 35-65discovery and initial characterization
of Mo2(O2CCH3)4 ................................9-10Mo2
4+ compounds containing ...... 8-10, 69-168qualitative bonding treatment of ............13-15Re2
6+ compounds containing .....................7-8, 273-301, 364-365
recognition of existence in Cr2(O2CCH3)4·2H2O .........................10-12
Tc26+ compounds containing ...............252-260
W24+ compounds containing ..............183-196
R
Re39+ clusters, recognition of Re=Re
bonding in .........................................................3
Re28+ compounds, electron-poor
triple bond in .........................................360-361
Re27+ compounds, paddlewheel
structure of ....................................................307
Re26+ compoundsalkyl ligands in .................................289, 300amidate ligands in ......................296-297, 365amidinate ligands in ...........................295-296carboxylate ligands in .........................282-292cleavage of quadruple bond in ....362-363, 365
-diketonate ligands in ......................292-293halide ligands in, see [Re2X8]
2- ions (X = F, Cl, Br or I)
intramolecular disproportionation reactions of ...........................290-292, 302
2-mercaptopyridinate ligands in .........294-2952-oxopyridinate ligands in ..................294-295phosphine ligands in ..........................298-300polyoxoanion bridges in ............................293Re–Re bond distances in .... 275-278, 364-365redox chemistry of ..............................303-308thiocyanate ligands in ........................280-281thioether ligands in ...................................301
Re25+ compoundsamidate ligands in .....................................307amidinate ligands in ..................307, 333, 360bidentate phosphine ligands in ..........322-327,
333, 335-338, 340-341bidentate thioether ligands in .............302-303carboxylate ligands in ................306-307, 333,
335-338, 340-341
2-mercaptopyridinate ligands in .........306-307monodentate phosphine ligands in ...........309,
314-322, 335, 3372-oxopyridinate ligands in ..................306-307Re–Re bond distances in ....................312-313redox chemistry of ......................315-322, 335
Re24+ compoundsalkyl ligands in .................................309, 327allyl ligands in ...................................359-360amidinate ligands in ..................................365bidentate and tridentate phosphine
ligands in ......................................322-341carboxylate ligands in .........................333-341cleavage of triple bond in ...........362-363, 365
-diketone ligands in .........................340-342electron-rich triple bond in ........302, 313-314homoleptic acetonitile cation of .................360monodentate phosphine
ligands in ......................309-322, 329, 359phthalocyanine ligand in ...........................360porphyrin ligands in ..................................360Re–Re bond distances in ....................310-312redox chemistry of ............. 315-322, 326-327,
331-332, 334-335, 359
[Re2X8]2- ions (X = F, Cl, Br or I), salts containing
molecular structure of ...................6, 274-275, 278-280, 364-365
recognition of existence of multiple bonding in .............................7-8
redox chemistry of .............. 303-304, 307-308synthesis of ......................... 273-274, 278-279
Re2Cl6(µ-dppm)2, the Re=Re bond in ................................... 300-301, 331-332
Re2X4(PP)2 compounds (X = halide; PP = bidentate phosphine),
- and - isomers of ...............................321-325
Re2X4(µ-dppm)2 (X = halide) complexes, see also Re2
4+ compounds, reactions with CO, isocyanides, nitriles and alkynes with retention of Re–Re bonding in ...............342-359
[Re2X3(µ-dppm)2(CO)(CNR)]+ cations (X = Cl or Br; R = alkyl or aryl), structural isomers of ............... 343-344, 353-355
[Re2Cl2(µ-dppm)2(CO)(CNXyl)3]n+ species
(n = 2, 1 or 0), structural isomers of ...............356
rhenium, discovery of the element .................271
Rh26+ compounds ....................540, 542, 546-547
816Multiple Bonds Between Metal AtomsIndex
Rh25+ compoundsamidate ligands in ..............................543-544amidinate ligands in ...........................544-546anionic N,N bridging ligands in ........544-547carboxylate ligands in .................541-543, 545electronic structures of .......540, 543-544, 546Ru–C bonds in ...................................546-547Rh–Rh bond distances in ...................540-541
Rh24+ compoundsamidate ligands in ..... 510-511, 543-544, 557,
565-566, 591-598, 611-612amidinate ligands in .......... 512-514, 544-545,
548-555, 557, 559-560, 563-656anionic N,N bridging ligands in .......512-521,
544-546anionic N,O bridging ligands in ........505-512biological signifi cance of ....................555-566carboxylate ligands in ........ 466-506, 509-514,
525-531, 541-543, 548-567, 599-605, 609-611
catalytic activity and applications of ...591-627chiral ligands in ................. 591-598, 609-612cleavage of the Rh–Rh bond in .................547
-diketone ligands in ........................501, 531electronic structure of ........................465, 512homoleptic aquo cation ......................528-529homoleptic nitrile cations ...........529-530, 566isocyanide ligands in ..........................533-535macrocyclic ligands in ........................531-533multidentate heterocyclic amine
ligands in ............. 501-505, 511, 513-514, 520, 553-554, 556, 563-565
nitrile ligands in ....... 487-488, 492, 501-506, 510, 513-514, 520, 526, 545, 548, 551-554, 562, 564, 566
organic transformations catalyzed by ..591-627orthometalated ligands in .................502, 520,
525-526, 551-552, 599-6052-oxopyridinate ligands in ..................505-510phosphine containing bridging
ligands in ............. 524-527, 535, 551-552, 556, 566, 599-605
photochemistry of .............. 563-564, 566-567polyoxoanion bridges in .............527-528, 547porphyrin ligands in ........... 531-532, 552-553redox chemistry of ......................535, 540-547Rh–Rh bond distances in .. 471-485, 494-500,
506-508, 515-519, 521-523, 527, 530, 594, 601
(S,N), (S,O) and (S,S) anionic bridging ligands in ...............468, 521-524
triazenate ligands in ...........................512-513
unsupported Rh–Rh bonds in ............528-533
Rh23+ compounds ....................535-536, 542, 544
rhodium blues ........................................536-539
rhodium, mixed-valence molecular wires containing .............................536-537, 539
Ru26+ compoundsamidinate ligands in ...........................418-421anionic N,N bridging ligands in ........416-422electronic structures of .......................415-422guanidinate ligands in ........................421-422macrocyclic ligands in ...............................422magnetic properties of ........ 415-416, 421-422polyoxoanion bridges in .....................415-416redox chemistry of ..............................418-422Ru–C bonds in ...................................417-421Ru–Ru bond distances in ...................414-415
Ru25+ compoundsamidate ligands in ..............................391-393amidinate ligands in ...........................399-401anionic N,N bridging ligands in ........396-404biological signifi cance of ....................423-424carbonate ligands in ...........................390-391carboxylate ligands in ................382-389, 394,
398-404, 423-424catalytic activity of .............................422-423cleavage of Ru–Ru bond in .......................385electronic structures of ...............386-389, 404macrocyclic ligands in ...............................422magnetic properties of ...............388-389, 393,
395-396, 399, 401, 403-404naphthyridine ligands in ....................401-4022-oxopyridinate ligands in ..................393-396polyoxoanion bridges in ............................390redox chemistry of .....................386, 392-393,
395, 398, 400, 403Ru–C bonds in ...................................397-401Ru–Ru bond distances in ...................378-382
Ru24+ compoundsamidinate ligands in ...........................411-412carboxylate ligands in ......... 405-409, 422-423catalytic activity of .............................422-423cleavage of Ru–Ru bond in ................406-407electronic structures of ....... 406-408, 410-414macrocyclic ligands in ...............................422magnetic properties of ........ 407-411, 413-414naphthyridine ligands in ....................413-4142-oxopyridinate ligands in ..................409-410redox chemistry of ......................407, 411-414Ru–Ru bond distances in ...................404-405
817Multiple Bonds Between Metal Atoms
Index
triazenate ligands in ...........................412-413
S
supramolecular assemblies and arrays, see assemblies containing
T
tantalum compounds, metal–metal bonding in .......................................................32
Tc8n+ octanuclear clusters
(n = 13 or 12) .........................................266-267
Tc6n+ hexanuclear clusters
(n = 12, 11 or 10) ...................................265-267
Tc26+ compoundscarboxylate ligands in .........................257-259halide ligands in, see [Tc2X8]
2- ions (X = Cl or Br)
sulfate ligand bridges in ............................260Tc–Tc bond distances in ............................253
Tc25+ compoundsamidinate ligands in ...........................259-260carboxylate ligands in .........................258-259halide ligands in, see [Tc2X8]
3- ions( X= Cl or Br)
2-oxopyridinate ligands in .........................259phosphine ligands in ..........................260-261redox chemistry of ..............................259-260Tc–Tc bond distances in ............................253
Tc24+ compoundscleavage of triple bond in ...................264-265homoleptic acetonitrile cation of ........263-265phosphine ligands in ..........................262-263polymeric {[Tc2X6]
2-}n anions in ..........261-262redox chemistry of ......................259, 262-263Tc–Tc bond distances in ............................253
[Tc2X8]2- ions ( X = Cl or Br), salts containing
molecular structure of ...............................255redox chemistry of .....................................255synthesis of .........................................254-256
[Tc2X8]3- ions, (X = Cl or Br), salts containing
molecular structure of ...............................254recognition of existence of multiple
bonding in ...............................................9redox chemistry of .....................................254synthesis of .................................252, 254-257Tc–Tc bond of order 3.5 in ........................252
Tc2Cl4(PP)2 compounds (PP = bidentate phosphine), - and - isomers of ...................263
technetium, synthesis and properties of .........251
triple metal–metal bondsdiscovery of the fi rst compound
containing ................................8, 302-303Mo2
6+ compounds containing ......94, 139-141, 165-166, 203-242
Mo22+ compound containing ......................138
Nb24+ compounds containing .................29-32
Os26+ compounds containing .............431-437,
439-444Re2
4+ compounds containing ......302-361, 365Ru2
6+ compounds containing .............416-417, 420-422
Tc24+ compounds containing ...............261-265
V24+ compounds containing ....................23-27
W26+ compounds containing .............198-199,
203-242
V
V24+ compoundsamidinate ligands in ...............................24-262-aminopyridinate ligands in ......................26guanidinate ligands in .................................26stabilization by bridging anionic
ligands of ..........................................24-26V–V bond distances in ................................26
V23+ compounds, bonds of order 3.5 in .......26-28
vibrational spectraM–L stretches .....................................781-783M–M stretches ...................................775-778M–M stretches in the excited state .....780-781
W
W412+ tetranuclear clusters ......................218-223
W26+ compoundsaldehydes, reactions with ...........................239alkoxide ligands in ............ 205-207, 210-214,
217-221, 224-228, 230-241alkynes, reactions with ...............234-236, 239amido ligands in ............... 205-206, 210-215,
217-218, 221, 224-228, 236Bloomington Shuffl e process ..............219-220bonding in ethane-like molecules .......208-209calixarene ligands in ...................198-199, 228C=C bonds, reactions with .................237-240
818Multiple Bonds Between Metal AtomsIndex
carboxylate ligands in .........207-208, 217, 229cleavage of triple bond in ...................231-237CO, reactions with .............................232-234COT ligands in ................. 207-208, 210-212,
214-215, 218cyclopentadienyl ligands in .......210-211, 213,
217-218, 241-242-diketonate ligands in .............................225
ethane-like structures of .....................203-204H2, reactions with .............................240, 242isocyanides, reactions with ........................234ketones, reactions with ..............................239nitrile containing ligands, reactions
with ..............................................236-237organometallic molecules, reactions with ...241oxidation of W2
4+ compounds to give ...................... 190, 194-195, 197-198
phosphido ligands in ..................210-215, 218phosphine ligands in ..........................224-226redox chemistry of .............................230-232,thiolate/selenate ligands in ........208, 213, 218triazenate ligands in ..................................227W–C bonds in ........... 204, 207-208, 210-215,
217-218, 221, 229, 236, 240W–W bond distances in ............205, 213-214,
224-225W2X6-nYn molecules ...........................210-218
W25+ compounds ............186, 190, 194, 197-198
W24+ compoundsamidinate ligands in ...........................189-190anionic N,N bridging ligands in ........189-190carboxylate ligands in .........183-188, 197, 217guanidinate ligands in ................189, 197-198halide ligands in, see [W2Cl8]
4- ion2-oxopyridinate ligands in ..........189-190, 192phosphine ligands in .........................184-185,
187-188, 192-195porphyrin ligands in ..................................192redox chemistry of ............................186, 190,
194-195, 197-198W–C bonds in ...................................189, 191W–W bond distances in .....................184-185
[W2Cl8]4- ion, salts containing ................191-192
W2X4(PP)2 compounds (X = halide; PP = bidentate phosphine),
- and - isomers of ...........................192-194
X
X-ray photoelectron spectra (XPS) ..........785-786