Issue 37, 2012

Different coordination modes of 2-(diphenylphosphino)azobenzenes in complexation with hard and soft metals

Abstract

Control of coordination modes of a ligand in metal complexes is significant because the coordination modes influence catalytic properties of transition metal catalysts. Reactions of 2-diphenylphosphinoazobenzenes, which are in equilibrium with the inner phosphonium salts, with ZnCl2, W(CO)5(THF), and PtCl2(cod) gave three different coordination types of metal complexes with distinctive UV-vis absorptions. All the complexes were characterized by X-ray crystallographic analyses. In the zinc and tungsten complexes, the source molecule functions as an amide ligand and a phosphine ligand, respectively. In the platinum complex, the phosphorus molecule works as a tridentate ligand with formation of a carbon–platinum bond.

Graphical abstract: Different coordination modes of 2-(diphenylphosphino)azobenzenes in complexation with hard and soft metals

Supplementary files

Article information

Article type
Paper
Submitted
17 Mar 2012
Accepted
26 Jul 2012
First published
14 Aug 2012

Dalton Trans., 2012,41, 11491-11496

Different coordination modes of 2-(diphenylphosphino)azobenzenes in complexation with hard and soft metals

N. Kano, M. Yamamura, X. Meng, T. Yasuzuka and T. Kawashima, Dalton Trans., 2012, 41, 11491 DOI: 10.1039/C2DT31494K

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