Multiple Bonds Between Metal Atoms / 17-back-matter

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+ compounds
carboxylate ligands in.........................	257-259
halide ligands in, see [Tc2X8]2- ions
(X = Cl or Br)
sulfate ligand bridges in ............................	260
Tc–Tc bond distances in ............................	253
Tc25+ compounds
amidinate ligands in...........................	259-260
carboxylate ligands in.........................	258-259
halide ligands in, see [Tc2X8]3- ions
( X= Cl or Br)
2-oxopyridinate ligands in.........................	259
phosphine ligands in ..........................	260-261
redox chemistry of..............................	259-260
Tc–Tc bond distances in ............................	253
Tc24+ compounds
cleavage of triple bond in ...................	264-265
homoleptic acetonitrile cation of	........263-265
phosphine ligands in ..........................	262-263
polymeric {[Tc2X6]2-}n anions in..........	261-262
redox chemistry of......................	259, 262-263
Tc–Tc bond distances in ............................	253
[Tc2X8]2- ions ( X = Cl or Br), salts containing
molecular structure of ...............................	255
redox chemistry of.....................................	255
synthesis of.........................................	254-256
[Tc2X8]3- ions, (X = Cl or Br), salts containing
molecular structure of ...............................	254
recognition of existence of multiple
bonding in...............................................	9
redox chemistry of.....................................	254
synthesis of.................................	252, 254-257
Tc–Tc bond of order 3.5 in ........................	252

Multiple Bonds Between Metal Atoms 817

Index

Tc2Cl4(PP)2 compounds (PP = bidentate
phosphine), _- and `- isomers of ...................			263
technetium, synthesis and properties of .........			251
triple metal–metal bonds
discovery of the first compound
containing ................................		8, 302-303
Mo26+ compounds containing ......		94, 139-141,
	165-166, 203-242
Mo22+ compound containing......................			138
Nb24+ compounds containing .................			29-32
Os26+ compounds containing .............			431-437,
			439-444
Re24+ compounds containing ......		302-361, 365
Ru26+ 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+ compounds
amidinate ligands in...............................			24-26
2-aminopyridinate ligands in ......................			26
guanidinate ligands in.................................			26
stabilization by bridging anionic
ligands of..........................................			24-26
V–V bond distances in ................................			26
V23+ compounds, bonds of order 3.5 in .......			26-28
vibrational spectra
M–L stretches.....................................			781-783
M–M stretches ...................................			775-778
M–M stretches in the excited state .....			780-781
W
W412+ tetranuclear clusters......................			218-223
W26+ compounds
aldehydes, reactions with...........................			239
alkoxide ligands in ............	205-207, 210-214,
217-221, 224-228, 230-241
alkynes, reactions with ...............		234-236, 239
amido ligands in ...............	205-206, 210-215,
217-218, 221, 224-228, 236
Bloomington Shuffle process ..............			219-220
bonding in ethane-like molecules .......			208-209
calixarene ligands in...................		198-199, 228
C=C bonds, reactions with .................			237-240

818Multiple Bonds Between Metal Atoms Index

carboxylate ligands in	.........	207-208, 217, 229
cleavage of triple bond in ...................		231-237
CO, reactions with .............................		232-234
COT ligands in .................		207-208, 210-212,
		214-215, 218
cyclopentadienyl ligands .......in		210-211, 213,
		217-218, 241-242
`-diketonate ligands in .............................		225
ethane-like structures .....................of		203-204
H2, reactions with .............................		240, 242
isocyanides, reactions ........................with		234
ketones, reactions with ..............................		239
nitrile containing ligands, reactions
with..............................................		236-237
organometallic molecules, reactions with...241
oxidation of W24+ compounds to
give ......................	190, 194 - 195, 197-198
phosphido ligands in ..................		210-215, 218
phosphine ligands in ..........................		224-226
redox chemistry of.............................		230-232,
thiolate/selenate ligands ........in		208, 213, 218
triazenate ligands in ..................................		227
W–C bonds in...........	204, 207 - 208, 210-215,
217-218, 221, 229, 236, 240
W–W bond distances ............in		205, 213-214,
		224-225
W2X6-nYn molecules ...........................		210-218
W25+ compounds ............	186, 190, 194, 197-198

W24+ compounds
amidinate ligands in...........................		189-190
anionic N,N bridging ligands in		........189-190
carboxylate ligands in.........	183-188, 197, 217
guanidinate ligands in................		189, 197-198
halide ligands in, see [W2Cl8]4- ion
2-oxopyridinate ligands in..........		189-190, 192
phosphine ligands in .........................		184-185,
	187-188, 192-195
porphyrin ligands in..................................		192
redox chemistry of............................		186, 190,
	194-195, 197-198
W–C bonds in...................................		189, 191
W–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