Elsevier

Inorganica Chimica Acta

Volumes 198–200, August–October 1992, Pages 437-441
Inorganica Chimica Acta

Ruthenium(II) complexes of a 2,2′-biphosphinine

https://doi.org/10.1016/S0020-1693(00)92387-9Get rights and content

Abstract

The biphosphinine complexes [RuC12(dmso)2(bp)] (2) and cis-[RuCl2(bp)2] (3) (bp=4,4’,5,5’-tetramethyl-2,2’-biphosphinine) have been prepared from [RuC12(dmso)4] and the free ligand. The crystal and molecular structure of 2, which crystallised in the space group C2/c with a=17.329(1), b=16.008(1), c=18.733(2) Å,β=104.75(1)°, V=5025.2(1.4) Å3 and Z=8 and refined to R=0.042,Rw=0.089, is presented and NMR data pertaining to both complexes is discussed. Analyses of the complexes suggest that the biphosphinine serves as a good π-acceptor ligand towards the ruthenium(II) centres.

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