Synthesis, characterization and molecular structures of some tetraosmium carbonyl clusters containing pyridine or phenanthroline type ligands1

Ya Yin Choi, Wing Tak Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

27 Citations (Scopus)


The reactions of activated tetraosmium carbonyl cluster [Os4(μ-H)4(CO)11(NCMe)] 1 with monopyridyl ligands give new clusters [Os4(μ-H)4(CO)11(pyp)] 3 and [Os4(μ-H)4(CO)11(pya)] 4. Similarly, the reactions of [Os4(μ-H)4(CO)10(NCMe)2] 2 with bipyridyl or phenanthroline type ligands afford [Os4(μ-H)4(CO)10(bpy)] 5, [Os4(μ-H)4(CO)10(dpbpy)] 6, [Os4(μ-H)4(CO)10(phen)] 7, [Os4(μ-H)4(CO)10(dmdpp)] 8, and [Os4(μ-H)4(CO)10(dppz)] 9, which exhibit interesting ring conformations. Treatment of 2 with nitrogen-phosphorus mixed donor ligand gives a novel bridging cluster [Os4(μ-H)4(CO)10(dpppy)] 10.
Original languageEnglish
Pages (from-to)189-201
Number of pages13
JournalJournal of Organometallic Chemistry
Issue number1-2
Publication statusPublished - 31 Jan 1999
Externally publishedYes


  • Bpy, 2,2′-bipyridine
  • Clusters
  • Dpbpy, 4,4′-diphenyl-2,2′-bipyridine
  • Osmium
  • Phen, phenanthroline
  • Phenanthroline
  • Pya, 4-pyridinecarboxaledehye
  • Pyp, pyrido[2,3-b]pyrazine
  • Pyridyl ligands

ASJC Scopus subject areas

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

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