Issue 20, 2003

Electronic coupling between molybdenum or tungsten quadruple bonds linked by dicarboxylate ligands

Abstract

The preparations and structures of dicarboxylate bridged complexes having MM quadruple bonds are described where M = Mo or W. The electronic structure of these complexes is shown to be dramatically altered by M2 δ-bridge π orbital interactions. The significance of M2 δ-bridge π conjugation is revealed by electronic structure calculations employing density functional theory and is manifest in the attendant spectroscopies of these compounds (UV-vis, Raman and resonance Raman), together with electrochemical studies and the EPR spectra of the single electron oxidized radical cations.

Graphical abstract: Electronic coupling between molybdenum or tungsten quadruple bonds linked by dicarboxylate ligands

Article information

Article type
Perspective
Submitted
23 Jun 2003
Accepted
01 Aug 2003
First published
05 Sep 2003

Dalton Trans., 2003, 3821-3828

Electronic coupling between molybdenum or tungsten quadruple bonds linked by dicarboxylate ligands

M. H. Chisholm, Dalton Trans., 2003, 3821 DOI: 10.1039/B307167G

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