New rhenium-tin cluster adds palladium phosphine groups across Re-Sn bonds

Richard D. Adams, Burjor Captain, Mikael Johansson, Jack L. Smith

Research output: Contribution to journalArticle

40 Scopus citations

Abstract

The new rhenium-tin complex Re2(CO)8(μ-SnPh2)2, 1 was obtained in 52% yield from the reaction of Re2(CO)8(μ-H)[μ-C(H)C(H)Bu] with Ph3SnH. Compound 1 contains two SnPh2 groups bridging a long Re-Re single bond, Re-Re = 3.1971(4) Å [3.1902(4) Å], Re-Sn = 2.7429(4) Å [2.7445(4) Å], and 2.7675(4) [2.7682(5) Å]. A bis-Pd(PBut3) adduct of 1, Pd2Re2(CO)8(μ-SnPh2)2(PBut3)2, 2 was obtained from the reaction of 1 with Pd(PBut3)2. Compound 2 contains Pd(PBut3) groups bridging two of its four Re-Sn bonds. The Re-Re bond and the unbridged Re-Sn bonds in 2 are significantly longer than those in 1, 3.245(1) Å and 2.8167(14) Å, respectively. Fenske-Hall molecular orbital calculations on 1 and 2 have been performed to explain the metal-metal bonding in these unusual mixed-metal polynuclear metal complexes.

Original languageEnglish (US)
Pages (from-to)488-489
Number of pages2
JournalJournal of the American Chemical Society
Volume127
Issue number2
DOIs
StatePublished - Jan 19 2005
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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