Photochemical or thermal chelate exchange in the ruthenium coordination sphere of complexes of the Ru(phen)2L family (L = diimine or dinitrile ligands)

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Authors

  • Etienne Baranoff
  • Jean Paul Collin
  • Junko Furusho
  • Yoshio Furusho
  • Anne Chantal Laemmel
  • Jean Pierre Sauvage

Colleges, School and Institutes

External organisations

  • UMR 7513 CNRS
  • IN2P3
  • Faculté de Chimie

Abstract

Complexes of the type Ru(phen)2L2+, where L is a substituted bipyridine family member, have been prepared, and their photochemical substitution reactions have been investigated. In the presence of a bis-benzonitrile derivative, acting as a bidentate chelate, photoexpulsion of L is performed under the action of visible light, with quantitative formation of new complexes of the type Ru(phen)2L′2+ (L′ = bis-nitrile ligand). Several complexes have been characterized by X-ray crystallography. In particular, the bis-benzonitrile complexes could be crystallized, and the structure of these compounds, containing a 13-, 14-, or 15-membered metal incorporating ring, was obtained. By heating Ru(phen)2L′2+ with a bipy derivative in refluxing ethylene glycol, quantitative formation of the starting complex [Ru(phen)2L2+] was carried out. The present series of compounds presents properties that could be profitably used in the design and construction of multicomponent systems acting as photochemically driven molecular machines.

Details

Original languageEnglish
Pages (from-to)1215-1222
Number of pages8
JournalInorganic Chemistry
Volume41
Issue number5
Publication statusPublished - 11 Mar 2002

ASJC Scopus subject areas