X-RAY STRUCTURAL STUDY OF PH(2)PBCL(2)(DMSO)(2), PH(2)PBCL(2)(HMPT)(2) AND PH(3)PBCL(HMPT)статья
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Аннотация:An X-ray structural investigation of Ph(2)PbCl(2)(DMSO)(2) (I), Ph(2)PbCl(2)(HMPT)(2) (IT) and Ph(3)PbCl(HMPT) (III) was carried out (DMSO = dimethylsulphoxide, HMPT = hexamethyltriamide phosphoric acid). Complexes I and II have octahedrally coordinated Pb-IV, but in III the coordination is trigonal-bipyramidal. Comparison with the analogous tin compounds indicates the relative shortening of Pb-C bonds and lengthening of Pb-Cl, Pb-N and Pb-O bonds. This phenomenon can be explained in terms of rehybridization of orbitals of the central atom.