Bimetallic clusters of iron with palladium and platinum. Synthesis and structures of Fe2(CO)9[M(PBut 3)]2 (M = Pd or Pt) and Fe2(CO) 8[Pt(PBut3)]2(μ-H)2

Richard D. Adams, Burjor Captain, William C. Pearl

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The reaction of Fe2(CO)9 with Pd(PBut 3)2 and Pt(PBut3)2 yielded the Fe-Pd and Fe-Pt cluster complexes Fe2(CO) 9-[M(PBut3)]2, M = Pd (8) or Pt (9). The structures of 8 and 9 are analogous and consist of nearly planar butterfly clusters of two palladium/platinum atoms in the wing-tip positions and two mutually bonded iron atoms, Fe-Fe = 2.9582(11) Å in 8 and 2.9100 (9) Å in 9. Compound 8 decomposes to form the mononuclear iron compound Fe(CO)4(PBut3) (11) when heated at 68°C. The reaction of Pt(PBut3)2 with Fe 2(CO)9 in the presence of hydrogen at 127°C yielded the dihydrido complex Fe2(CO)8[Pt(PBut 3)]2(μ-H)2 (10). Compound 10 contains a closed Fe2Pt2 tetrahedral cluster with hydrido ligands bridging two of the Fe-R bonds. Compounds 8, 9, and 10 were structurally characterized crystallographically.

Original languageEnglish (US)
Pages (from-to)8283-8287
Number of pages5
JournalInorganic Chemistry
Issue number20
StatePublished - Oct 2 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry


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