Synthesis and vibrational spectra of new bis(alkoxysulfane)-dichloropalladium(II) complexes and X-ray structural analysis of [PdCl2{S(OPri)2}2]
作者:Ralf Steudel、Monika Kustos、Heinar Schmidt、Eberhard Wenschuh、Mathias Kersten、Andrea Wloszczynski
DOI:10.1039/dt9940002509
日期:——
Reactions of L = (Pr(i)O)2S, (PrnO)2S, (MeO)(C4H8NO)S (C4H8NO = morpholino), (MeO) (C5H10N)S (C5H10N = piperidino) or (MeO)PhS with [PdCl2(NCPh)2] in toluene gave five complexes of type [PdCl2L2] (yields 40-79%). An X-ray structural analysis of the air-stable, monoclinic crystals of [PdCl2S(OPe)2}2] showed the sulfur atoms to be cis-planar co-ordinated. The two co-ordinated dialkoxysulfane ligands are rotational isomers with differing SO torsional angles (+79 and 84-degrees for ligand 1, -106 and +82-degrees for 2). The S-0 bond lengths are in the range 1.586-1.611 angstrom. The infrared and Raman spectra of the five [PdCl2L2] complexes demonstrate that the rule of mutual exclusion is not obeyed, indicating a cis rather than a trans co-ordination in each case.