Synthesis and reactivity of bimetallic acetylide-bridged PtPt complexes. Crystal and molecular structure of [(PPh3)(C6F5)Pt(μ-CCPh)2Pt(C6F5)(PPh3)]

J. R. Berenguer, J. Forniés, F. Martínez, J. C. Cubero, E. Lalinde, M. T. Moreno, A. J. Welch

Research output: Contribution to journalArticle

Abstract

The binuclear double-bridged acetylide complexes [Pt(μ-CCR)(C6F5)PPh3)]2 [R = Ph (1), But (2), SiMe3 (3)] have been synthesized from [trans-Pt(CCR)2(PPh3)2] and [cis-Pt(C6F5)2(THF)2] (THF = tetrahydrofuran). The crystal structure of [Pt(μ-CCPh) (C6F5)(PPh3)]2 (1) has been established by X-ray diffraction methods. The structure shows that two identical [(PPh3)(C6F5)PtCCPh] units are joined together through η2-bonding of MCCPh units. This indicates that the complex is formed via a rearrangement of groups between the two metal centres. Treatment of [Pt(μ-CCR)(C6F5)(PPh3)]2 with L (L = PPh3, py = pyridine) produces simple bridge-cleavage reactions giving the mono-nuclear complexes [trans-Pt(C6F5)(CCR)(PPh3)L] (4-9).

Original languageEnglish
Pages (from-to)1797-1804
Number of pages8
JournalPolyhedron
Volume12
Issue number14
DOIs
Publication statusPublished - Jul 1993

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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