Multiple Additions of Phenylgermanium Ligands to Tetraruthenium and Tetraosmium Carbonyl Cluster Complexes
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- 作者：Richard D. Adams ; Erin M. Boswell ; Burjor Captain ; Mitul A. Patel
- 刊名：Inorganic Chemistry
- 出版年：2007
- 出版时间：January 22, 2007
- 年：2007
- 卷：46
- 期：2
- 页码：533 - 540
- 全文大小：336K
- 年卷期：v.46,no.2(January 22, 2007)
- ISSN：1520-510X
文摘
Three new compounds, Ru4(
4-GePh)2(-GePh2)2(-CO)2(CO)8 (11), Ru4(4-GePh)2(-GePh2)3(-CO)(CO)8 (12),and Ru4(4-GePh)2(-GePh2)4(CO)8 (13), were obtained from the reaction of H4Ru4(CO)12 with excess Ph3GeH inoctane (11 and 12) or decane (13) reflux. Compound 11 was converted to compound 13 by reaction with Ph3GeHby heating solutions in nonane solvent to reflux. Compounds 11-13 each contain a square-type arrangement offour Ru atoms capped on each side by a quadruply bridging GePh ligand to form an octahedral geometry for theRu4Ge2 group. Compound 11 also contains two edge-bridging GePh2 groups on opposite sides of the cluster andtwo bridging carbonyl ligands. Compound 12 contains three edge-bridging GePh2 groups and one bridging carbonylligand. Compound 13 contains four bridging GePh2 groups, one on each edge of the Ru4 square. The reaction ofH4Os4(CO)12 with excess Ph3GeH in decane at reflux yielded two new tetraosmium cluster complexes, Os4(4-GePh)2(-GePh2)3(-CO)(CO)8 (14) and Os4(4-GePh)2(-GePh2)4(CO)8 (15). These compounds are structurallysimilar to compounds 12 and 13, respectively.
4-GePh)2(-GePh2)2(-CO)2(CO)8 (11), Ru4(4-GePh)2(-GePh2)3(-CO)(CO)8 (12),and Ru4(4-GePh)2(-GePh2)4(CO)8 (13), were obtained from the reaction of H4Ru4(CO)12 with excess Ph3GeH inoctane (11 and 12) or decane (13) reflux. Compound 11 was converted to compound 13 by reaction with Ph3GeHby heating solutions in nonane solvent to reflux. Compounds 11-13 each contain a square-type arrangement offour Ru atoms capped on each side by a quadruply bridging GePh ligand to form an octahedral geometry for theRu4Ge2 group. Compound 11 also contains two edge-bridging GePh2 groups on opposite sides of the cluster andtwo bridging carbonyl ligands. Compound 12 contains three edge-bridging GePh2 groups and one bridging carbonylligand. Compound 13 contains four bridging GePh2 groups, one on each edge of the Ru4 square. The reaction ofH4Os4(CO)12 with excess Ph3GeH in decane at reflux yielded two new tetraosmium cluster complexes, Os4(4-GePh)2(-GePh2)3(-CO)(CO)8 (14) and Os4(4-GePh)2(-GePh2)4(CO)8 (15). These compounds are structurallysimilar to compounds 12 and 13, respectively.