2 Homometallic Alkoxides

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Table 4.22 Heterometallic alkoxides of zinc, cadmium, indium, thallium, germanium, tin, and lead
Coordination no. M-O Bond lengths ( ˚A)
Bond angles ( Ž )
Compound M M0 ,M00 Terminal Bridging MOC � Reference
[Zn2Pb2⊲ , 2-OC2H4OMe⊳4⊲ , 2- 4 6 PbO(acetate), 2.48 (2) ZnO, av. 1.97
O2CMe⊳4]
[Ge⊲ -OBu
PbO⊲CH2OMe), 2.84 (2) PbO, av. 2.26
t ⊳3Cd⊲ -OBut⊳3Ge] 6 3 – CdO, 2.33 (1)
GeO, 1.893 (9)
[Sn⊲ -OBu t ⊳3Cd⊲ -OBu t ⊳3Sn] 6 3 – CdO, 2.34 (1)
SnO, 2.080 (9)
[ICdSn2⊲ 3-OPr i ⊳2⊲ -OPr i ⊳3⊲OPr i ⊳4] 5 6 SnO, 1.958, 1.972 (9) CdO, 2.370 (7) ( 3)
2.297 (8) ( )
SnO, 2.189, 2.198 (8) ( 3)
2.048, 2.145 (8) ( )
[In⊲ -OBu t ⊳3Sn] 3 3 – InO, 2.413 (4)
SnO, 2.032 (4)
[TI⊲ -OBu t ⊳3Sn] 3 3 – TlO, 2.595 (7)
SnO, 2.023 (9)
[TI⊲ -OBu t ⊳3SnMo⊲CO⊳5] 3 4161 – TlO, 2.557 (15)
SnO, 2.017 (9)
[⊲CO⊳5MoIn⊲ -OBu t ⊳3GeMo⊲CO⊳5] 4141 61 – InO, 2.244 (9)
GeO, 1.842 (9)
[⊲CO⊳4FeIn⊲ -OBu t ⊳3SnFe⊲CO⊳4] 414151 – InO, 2.187 (20)
SnO, 2.034 (20)
[cis-⊲CO⊳4CrfIn⊲ -OBu t ⊳3Geg2] 413 61 – InO, 2.236 (9)
GeO, 1.872 (8)
[trans-⊲CO⊳4MofSn⊲ -OBu t ⊳3Tlg2] 3 4161 – TlO, 2.568 (50)
SnO, 2.036 (30)
[cis-⊲CO⊳4CrfIn⊲ -OBu t ⊳g3SnCr⊲CO⊳5] 4141 61 – InO, 2.263 (15)
SnO, 2.025 (12)
[cis-⊲CO⊳4MofIn⊲ -OBu t ⊳3SnCr⊲CO⊳5g2] 41 41 61 – InO, 2.271 (17)
SnO, 2003 (6)
– 527
– 487
– 487
– 525
– 524
TlOC, 123.3 524, 528
SnOC, 134.8
– 524
– 524
– 524
– 524
– 524
– 524
– 524
(continued overleaf )