摘要:
The coordination chemistry of the diphosphine ligands 2,2-bis(diphenylphosphinomethyl)propionic acid, 1, and 2,2-bis(diphenylphosphinomethyl) propionate, 2, with copper(I), silver(I), gold(I), palladium(II) and platinum(II) is described. Structure determinations show that the carboxylic acid group in 1 can hydrogen bond to solvent molecules, to anions or to the carboxylic acid group of a neighboring complex, as in the complexes [MCl2(1)] 2DMSO (M = Pd or Pt), [Pt(1)(2)](OTf)(2) or [Pd(NCMe)(2)(1)](OTf)(2), respectively. The tridentate diphosphine-carboxylate ligand 2 forms oligomeric or polymeric complexes, such as [{Ag(2)}(n)], [{PdCl(2)}(n)] or [{PtMe(2)}(n)]. (C) 2007 Elsevier B.V. All rights reserved.