Multiple additions of phenylgermanium ligands to tetraruthenium and tetraosmium carbonyl cluster complexes

Richard D. Adams, Erin M. Boswell, Burjor Captain, Mitul A. Patel

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

Three new compounds, Ru44-GePh) 2(μ-GePh2)2(μ-CO)2(CO) 8 (11), Ru44-GePh)2(μ- GePh2)3(μ-CO)(CO)8 (12), and Ru 44-GePh)2(μ-GePh2) 4(CO)8 (13), were obtained from the reaction of H 4Ru4(CO)12 with excess Ph3GeH in octane (11 and 12) or decane (13) reflux. Compound 11 was converted to compound 13 by reaction with Ph3GeH by heating solutions in nonane solvent to reflux. Compounds 11-13 each contain a square-type arrangement of four Ru atoms capped on each side by a quadruply bridging GePh ligand to form an octahedral geometry for the Ru4Ge2 group. Compound 11 also contains two edge-bridging GePh2 groups on opposite sides of the cluster and two bridging carbonyl ligands. Compound 12 contains three edge-bridging GePh2 groups and one bridging carbonyl ligand. Compound 13 contains four bridging GePh2 groups, one on each edge of the Ru4 square. The reaction of H4Os4(CO)12 with excess Ph3GeH in decane at reflux yielded two new tetraosmium cluster complexes, Os44-GePh)2(μ-GePh 2)3(μ-CO)(CO)8 (14) and Os 44-GePh)2(μ-GePh2) 4(CO)8 (15). These compounds are structurally similar to compounds 12 and 13, respectively.

Original languageEnglish (US)
Pages (from-to)533-540
Number of pages8
JournalInorganic Chemistry
Volume46
Issue number2
DOIs
StatePublished - Jan 22 2007
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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