CRYSTAL-STRUCTURES OF PH2PBCL2(IMIDAZOLE)2 ISOMERS WITH TRANS-ARRANGEMENTS AND CIS-ARRANGEMENTS OF THE PHENYL GROUPSстатья
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Аннотация:The isomers of the Ph2PbCl2(imidazole)2 complex having trans- and cis-arrangements, respectively, of the phenyl groups have been prepared and subjected to X-ray diffraction studies. The trans-complex has an almost regular octahedral environment for its lead atom. In the cis-complex the coordination octahedron is strongly distorted. with the C-Pb-C and N-Pb-N angles of 129-degrees and 59-degrees, respectively. The molecules are associated through hydrogen bonds N-H...Cl into layers (trans-complex) or chains (cis-complex).