Activation of Tri(2-furyl)Phosphine by [Ru4(μ-H)4(CO)12]: The First Example of Coordinated Furyl and Furyne Ligands at Tetraruthenium Phosphide and Phosphinidene Clusters

Wai Yeung Wong, Fai Lung Ting, Zhenyang Lin

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27 Citations (Scopus)

Abstract

Tri(2-furyl)phosphine (PFu3) reacts with [Ru4(μ-H)4(CO)12] (1) in refluxing THF to give, apart from an isomeric pair of the substituton products [Ru4(μ-H)4(CO)10(PFu3)2] (2a and 2b), the μ-phosphido cluster [Ru4(μ-H)2(CO)8(PFu3)2(μ-PFu2)(μ-n1,n2-C4H3O)] (3) and a series of μ3- and μ4-phosphinidene clusters [Ru4(μ-H)2(CO)12-x(PFu3)x(μ3-PFu)] (x = 0 (4), 2 (5), 3 (6)) and [Ru4(μ-H)2(CO)9(PFu3)2(μ4-PFu)(μ3-n1,n1,n2-C4H2O)] (7). In this one-pot reaction, the excellent facility for PFu3to act as rich sources of furyl, furyne, phosphide (μ-PR2), and phosphinidene (μ3-PR and μ4-PR) fragments on tetrametallic frameworks has been demon-strated. The single-crystal X-ray structures of all new molecules have been determined. The structure of 7 represents the first structurally characterized example of stable furyne-containing cluster complexes of ruthenium. The electrochemical behavior and molecular orbital calculations of these metallophosphorus clusters have been examined as a function of the coordination modes of the phosphorus-containing moieties.
Original languageEnglish
Pages (from-to)5100-5108
Number of pages9
JournalOrganometallics
Volume22
Issue number24
DOIs
Publication statusPublished - 24 Nov 2003
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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