Superloading of Tin Ligands into Rhodium and Iridium Carbonyl Cluster Complexes

The reactions of Rh4(CO)12 and Ir4(CO)12 with Ph3SnH have yielded the new Rh−Sn and Ir−Sn cluster complexes M3(CO)6(μ-SnPh2)3(SnPh3)3, 1 (M = Rh) and 2 (M = Ir). Both compounds contain triangular M3 clusters with three bridging SnPh2 and three terminal SnPh3 ligands. The M−M bonds are unusually long...

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Published inInorganic chemistry Vol. 43; no. 24; pp. 7576 - 7578
Main Authors Adams, Richard D, Captain, Burjor, Smith, Jack L, Hall, Michael B, Beddie, Chad L, Webster, Charles Edwin
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 29.11.2004
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Summary:The reactions of Rh4(CO)12 and Ir4(CO)12 with Ph3SnH have yielded the new Rh−Sn and Ir−Sn cluster complexes M3(CO)6(μ-SnPh2)3(SnPh3)3, 1 (M = Rh) and 2 (M = Ir). Both compounds contain triangular M3 clusters with three bridging SnPh2 and three terminal SnPh3 ligands. The M−M bonds are unusually long. Molecular orbital calculations indicate that this is due to the importance of M−Sn bonding and weak direct M−M interactions. Reaction of 1 with Ph3SnH at reflux in 1,2-dichlorobenzene solvent yielded the complex Rh3(CO)3(SnPh3)3(μ-SnPh2)3(μ3-SnPh)2, 3, which contains eight tin ligands:  three terminal SnPh3, three edge-bridging SnPh2, and two triply bridging SnPh ligands.
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ISSN:0020-1669
1520-510X
DOI:10.1021/ic0489589