New triosmium-iridium clusters: Synthesis and molecular structure

Yui Bing Lee, Wing Tak Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)


The trinuclear osmium carbonyl cluster, [Os3(CO)10(MeCN)2], is allowed to react with 1 equiv. of [IrCp*Cl2]2(Cp*= pentamethylcyclopentadiene) in refluxing dichloromethane to give two new osmium-iridium mixed-metal clusters, [Os3Ir2(Cp*)2(μ-OH) (μ-CO)2(CO)8Cl] (1) and [Os3IrCp*(μ-OH)(CO)10Cl] (2), in moderate yields. In the presence of a pyridyl ligand, [C5H3N(NH2)Br], however, the products isolated are different. Two osmium-iridium clusters with different coordination modes of the pyridyl ligand are afforded, [Os3IrCp*(μ-H)(μ-Cl)(η3,μ3-C5H2N(NH2)Br)(CO)9] (3) and [Os3IrCp*(μ-Cl)2(η2,μ3-C5H3N(NH)Br)(C O)7] (4). All of the new compounds are characterized by conventional spectroscopic methods, and their structures are determined by single-crystal X-ray diffraction analysis.
Original languageEnglish
Pages (from-to)1528-1535
Number of pages8
JournalJournal of Organometallic Chemistry
Issue number8-9
Publication statusPublished - 15 Apr 2008
Externally publishedYes


  • Clusters
  • Iridium
  • Osmium
  • Pyridine

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


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