Synthesis, characterisation, crystal structures and electrochemistry of triosmium nitrite carbonyl clusters containing ferrocenyl phosphines

Emmie Ngai Man Ho, Bernard Kwok Man Hui, Wing Tak Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)

Abstract

The triosmium nitrite carbonyl cluster [Os3(μ-H)(CO)10(μ-η2-NO2)] (1) was allowed to react with 1,1′-bis(diphenylphosphino)ferrocene (dppf) and N,N-dimethyl-1-[(S)-2-(diphenylphosphino)ferrocenyl]ethylamine (ppfa) in the presence of Me3NO in CH2Cl2, and clusters [Os3(μ-H)(CO)8(μ-η2-NO2)(μ-dppf)] (2) and [Os3(μ-H)(CO)8(μ-η2-NO2)(μ-ppfa)] (3) were afforded in moderate yields. Clusters 2 and 3 were fully characterised by spectroscopic techniques and X-ray crystallography. The nitrite, hydride and the ferrocenyl phosphine ligands are all bridged across the same Os-Os edge. The amine group of the ppfa ligand shows a preference to coordinate with the Os atom with a σ-bonded nitrite O atom. The redox properties of the nitrite complexes were investigated using cyclic voltammetry.
Original languageEnglish
Pages (from-to)276-283
Number of pages8
JournalJournal of Organometallic Chemistry
Volume637-639
DOIs
Publication statusPublished - 3 Dec 2001
Externally publishedYes

Keywords

  • Cluster
  • Electrochemistry
  • Ferrocene
  • Nitrite
  • Osmium

ASJC Scopus subject areas

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

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