Chemistry Reference
In-Depth Information
Table 6.18
Barium aryloxides
Bond length ( A)
Bond angle (
Ž
)
Compound
Aryloxide
M-O
M-O-Ar
Ref.
[Ba
6
(OAr)
12
(TMEDA)
4
]
two Ba
3
triangles connected by one edge, 6- and 7-coord. Ba
2
-OC
6
H
5
3
-OC
6
H
5
2.619 (3) - 2.676 (3)
2.702 (3) - 2.786 (3)
i
[Ba
5
(OAr)
9
(H)(O)(THF)
8
]
Ba
5
square pyramid with
5
-O, 7-coord. Ba
OC
6
H
5
2
-OC
6
H
5
3
-OC
6
H
5
2.54 (1)
2.65 (3) (av.)
2.75 (2) (av.)
ii
[Ba
5
(OAr)
9
(OH)(THF)
5
]
Ba
5
square pyramid with
5
-OH, 6- and 7-coord. Ba
OC
6
H
5
2
-OC
6
H
5
3
-OC
6
H
5
2.551 (23)
iii
[Ba
4
(OAr)
6
(O)]
Ba
4
tetrahedron with
4
-O, 6- and 7-coord. Ba
2
-OC
6
H
2
CH
2
NMe
2
3
-2,4,6
2.70 (1), 2.73 (1),
2.74 (1)
iv
OC
6
H
2
Bu
t
2
-2,6-Me-4
[Ba(OAr)
2
(THF)
3
]
tbp, equatorial OAr
2.38 (1)
2.42 (1)
172
177
v
OC
6
H
2
Bu
t
2
-2,6-Me-4
[Ba
2
(OAr)
2
2
-I
2
(THF)
6
]
6-coord. Ba
2.408 (8)
177
vi
OC
6
H
2
Bu
t
2
-2,6-Me-4
[Ba(OAr)
2
(HMPA)
2
]
distorted tetrahedron
2.414 (8)
178
vii
[Ba(OAr)(OH)(HOAr)(ethanolamine)
2
]
n
9-coord. Ba
2
-OC
6
H
3
Bu
t
2
-3,5
2.676 (11),
2.733 (11)
viii
[Ba
8
(OAr)
14
(O)
2
(H)
2
(HMPA)
6
]
two fused Ba
5
square pyramids with
5
-O, 6- and 8-coord. Ba
2
-OC
6
H
5
3
-OC
6
H
5
2.581 (12) - 2.752 (13)
2.645 (12) - 2.858 (13)
ix
2
-OC
6
H
4
NO
2
-2
[Ba(OAr)
2
]
n
10-coord. Ba
2.711 (3), 2.722 (3)
x
[Ba(OAr)
2
1,10-phen
3
]
9-coord. Ba
OC
6
H
3
NO
2
2
-2,4
2
-OC
6
H
3
NO
2
2
-2,4
2.602 (4)
2.697 (3)
xi
(
continued overleaf
)
