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- W2030764587 abstract "The crystal and molecular structures of three organolead compounds containing lead—sulphur bonds are described. Crystals of triphenyllead benzenethiolate (I, C24H20PbS) are in the monoclinic space group P21/c, with a 7.657, b 16.427, c 16.239 Å, β 93.781°, Z = 4; crystals of triphenyllead O,O′-diethyldithiophosphate (II, C22H25O2PPbS2), and diphenyllead bis(O,O′-dibenzyldithiophosphate) (III, C40H38O4PbS4) are both in triclinic space group P1, with a 9.579, b 10.602, c 12.710 Å, α 101.623, β 99.554, γ 100.719°, Z = 2, and a 11.760, b 12. 532, c 16.263 Å, α 80.14, β 111.46, γ 112.41°, Z = 2, respectively. Structures were determined by the heavy atom method using 2820, 2752, and 3084 independent, non-zero reflections with I > 3σ(I) for compounds I, II and III, respectively, collected using an automated four-circle diffractometer using Mo-Kα radiation (λ 0.71069 Å). The refinements converged at conventional R-values of 3.44%, 7.40% and 7.68% for I, II, and III, respectively. Both Ph3PbSPh and Ph3PbS2(OEt)2 form lattices comprising non-interacting molecules with geometries at lead only slightly distorted from tetrahedral. The distortion in the dithiophosphate is somewhat greater than in the benzenethiolate, and is accompanied by a marginally longer lead—sulphur distance (2.554(6) Å vs. 2.515(2) Å). The lead in Ph2Pb[S2P(OCH2Ph)2]2 are coordinated in a distorted octahedral fashion by two mutually trans phenyl groups (angle CPbC 165.0(9)°) and two anisobidentate dithiophosphate ligands, each forming one short bond (2.723(6), 2.679(6) Å) and one long bond (2.940(7), 2.957(6) Å) to lead. In the crystal lattice, adjacent pairs of molecules are linked by long (3.69(2) Å) lead—sulphur contacts to give an overall equatorial [PbS5] arrangement." @default.
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- W2030764587 date "1985-07-01" @default.
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- W2030764587 title "Some structural chemistry of organolead(IV) compounds containing lead—sulphur bonds. The crystal and molecular structures of triphenyllead benzenethiolate, Ph3PbSPh, triphenyllead O,O′-diethyldithiophosphate, Ph3PbS2P(OEt)2, and diphenyllead bis(O,O′-dibenzyldithiophosphate), Ph2Pb[S2P(OCH2Ph)2]2" @default.
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- W2030764587 doi "https://doi.org/10.1016/0022-328x(85)87406-4" @default.
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