| PREPARATION, PROPERTIES, AND MOLECULAR STRUCTURE OF trans-DICYANO BIS[BIS(DIPHENYLPHOSPHINO) METHANE]PALLADIUM (Ⅱ) |
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| 引用本文： | Selbin,J.,Fronczek,F.R.. PREPARATION, PROPERTIES, AND MOLECULAR STRUCTURE OF trans-DICYANO BIS[BIS(DIPHENYLPHOSPHINO) METHANE]PALLADIUM (Ⅱ)[J]. 结构化学, 1992, 0(1) |
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| 作者姓名： | Selbin J. Fronczek F.R. |
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| 作者单位： | Department of Chemistry. Louisiana State University，Baton Rouge，LA 70803，U. S. A.，Department of Chemistry. Louisiana State University，Baton Rouge，LA 70803，U. S. A.，Department of Chemistry. Louisiana State University，Baton Rouge，LA 70803，U. S. A.，Department of Chemistry. Louisiana State University，Baton Rouge，LA 70803，U. S. A. |
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| 摘 要： | <正> The crystal structure of the title compound has been determined. PdC52H44N2P4, Mr = 927. 2, monoclinic, space group P21 /n, a =12. 102(2), b = 9.997(2), c=20. 254(5)(?),β=93. 80(2)°, V = 2445. 0(?)3, Z = 2, R =0. 075 and Rw = 0. 095 for 3535 observed reflections (I>3σ(I)), The palladium atom is located on the symmetric center and adopts a square planar coordination surroundings with two biphosphine ligands and two cyanide groups. The molecular structure in crystals is different from that in solution in which the molecule is very fluxional, probably due to the rapid alteration in coordination sites between the coordinated and uncoordinated phosphorus atoms of the biphosphine ligands. Their properties are also reported.
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PREPARATION,PROPERTIES, AND MOLECULAR STRUCTURE OF trans-DICYANO BIS[BIS(DIPHENYLPHOSPHINO) METHANE]PALLADIUM (Ⅱ) |
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| Abstract: | The crystal structure of the title compound has been determined. PdC52H44N2P4, Mr = 927. 2, monoclinic, space group P21 /n, a =12. 102(2), b = 9.997(2), c=20. 254(5)(?),β=93. 80(2)°, V = 2445. 0(?)3, Z = 2, R =0. 075 and Rw = 0. 095 for 3535 observed reflections (I>3σ(I)), The palladium atom is located on the symmetric center and adopts a square planar coordination surroundings with two biphosphine ligands and two cyanide groups. The molecular structure in crystals is different from that in solution in which the molecule is very fluxional, probably due to the rapid alteration in coordination sites between the coordinated and uncoordinated phosphorus atoms of the biphosphine ligands. Their properties are also reported. |
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