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2 Homometallic Alkoxides

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429<br />

Table 5.7 Manganese sub-group metal-containing oxo-alkoxides (including heterometallic compounds)<br />

Metal Oxo M–Oxo bond Mx–Oxo<br />

Compound coord. coord. lengths ( ˚A) bond angles ( Ž ) Reference<br />

⊲NEt4⊳2[Mn10⊲ 6-O⊳2f⊲OCH2⊳3CMeg6Cl8] 6 6 MnO, 1.95–2.54 (2) ( 6)<br />

av. 2.37<br />

– 88<br />

[Mn8Sb4⊲ 5-O⊳4⊲ 3-OEt⊳2⊲ -OEt⊳18] 5, 6 5 MnO, 2.23–2.38 ( 5)<br />

av. 2.30,<br />

– 25<br />

SbO, 1.96, 1.97 ( 5)<br />

⊲AsPh4⊳[Tc⊲O⊳⊲OC2H4S⊳2] 5 t TcO, 1.662 (5) (t) – 74<br />

[Tc⊲O⊳⊲OC2H4O⊳Cl⊲phen⊳]<br />

phen D orthophenanthroline<br />

6 t TcO, 1.661 (4) (t) – 75<br />

[Re2⊲O⊳2⊲ -O⊳⊲ -OMe⊳2⊲OMe⊳4] 6 t, ReO, 1.690, 1.703 (12) (t)<br />

ReO, 1.916, 1.917 (13) ( )<br />

Re2O, 83.8 76<br />

[fMeRe⊲O⊳⊲OC2H4O⊳⊲py⊳g2⊲ -O⊳] 6 t, ReO, 1.691 (8) (t)<br />

ReO, 1.859 (1) ( )<br />

180 86<br />

[MeRe⊲O⊳2⊲OC2Me4O⊳] 5 t ReO, 1.657, 1.702 (2) (t) – 86<br />

[Re⊲O⊳fOCMe⊲CF3⊳2g3⊲thf⊳2] 6 t ReO, 1.681 (4) (t) – 174<br />

[Re⊲O⊳fOCMe⊲CF3⊳2g3⊲CHCH:CPh2⊳⊲thf⊳] 6 t ReO, 1.674 (7) (t) – 174<br />

t D terminal.

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