Chemistry Reference
In-Depth Information
Table 6.24
Vanadium aryloxides
Bond length ( A)
Bond angle (
Ž
)
Compound
Aryloxide
M-O
M-O-Ar
Ref.
Homoleptic aryloxides and adducts
[V
2
2
-OAr
2
OAr
4
THF
]
4- and 5-coord. V
OC
6
H
3
Me
2
-2,6
1.818 (4)
1.836 (4)
1.842 (4)
1.831 (3)
154
140
158
135
i
2
-OC
6
H
3
Me
2
-2,6
1.999 (4), 1.972 (3)
1.926 (3), 2.084 (4)
[V(OAr)
3
py
2
]
tbp V, axial py
OC
6
H
3
Me
2
-2,6
1.870 (3)
1.861 (3)
1.869 (3)
137
150
131
i
OC
6
H
2
Bu
t
2
-2,6-Me-4
[V(OAr)
2
py
2
]
square planar V
1.916 (2)
156
ii
[V(OAr)
2
TMEDA
]
6-coord. V, chelating 2OMe phenoxides
OC
6
H
4
OMe-2
2.068 (4)
2.105 (3)
121
123
ii
[V(OAr)
2
TMEDA
]
distorted 4-coord. V
OC
6
H
3
Ph
2
-2,6
2.000 (3)
2.038 (3)
142
138
ii
[V(OAr)
2
py
3
]
square pyramidal V, axial py
OC
6
H
3
Ph
2
-2,6
2.025 (4)
146
ii
[
DME)
3
Li
3
2
-OAr
6
V]
2
-OC
6
H
5
Li-O-V
iii
octahedral V
1.878 (3), 2.007 (1)
1.902 (3), 2.021 (1)
OC
6
H
3
Pr
i
2
-2,6
2
-OC
6
H
3
Pr
i
2
-2,6
[(THF)Li
2
-OAr
2
V(OAr)
2
]
two independent molecules, 4-coord. V
1.820 (2)
1.843 (2)
146
146
iii
