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.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Inorganic Chemistry