Synthesis,Reactivity and Crystal Structures of the Palladium(II) Complexes with the Pyrimidine Containing Ligand: Crystal Structures of [Pd(PPh3)(η1‐C4H3N2)(η2‐S2CNC4H8)] and [Pd(PPh3)(η1‐C4H3N2)(η2‐Tp)] |
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| Authors: | Hsiao‐Fen Wang Kuang‐Hway Yih Gene‐Hsiang Lee Shou‐Ling Huang |
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| Institution: | 1. Department of Applied Cosmetology, Hungkuang University Shalu, Taichung, Taiwan 433, R.O.C.;2. Instrumentation Center, College of Science, National Taiwan University, Taipei, Taiwan 106, R.O.C. |
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| Abstract: | Treatment of Pd(PPh3)4 with 5‐bromo‐pyrimidine C4H3N2Br] in dichloromethane at ambient temperature cause the oxidative addition reaction to produce the palladium complex Pd(PPh3)2(η1‐C4H3N2)(Br)], 1 , by substituting two triphenylphosphine ligands. In acetonitrile solution of 1 in refluxing temperature for 1 day, it do not undergo displacement of the triphenylphosphine ligand to form the dipalladium complex Pd(PPh3)Br]2{μ,η2‐(η1‐C4H3N2)}2, or bromide ligand to form chelating pyrimidine complex Pd(PPh3)2(η2‐C4H3N2)]Br. Complex 1 reacted with bidentate ligand, NH4S2CNC4H8, and tridentate ligand, KTp {Tp = tris(pyrazoyl‐1‐yl)borate}, to obtain the η2‐dithiocarbamate η1‐pyrimidine complex Pd(PPh3)(η1‐C4H3N2)(η2‐S2CNC4H8)], 4 and η2‐Tp η1‐pyrimidine complex Pd(PPh3)(η1‐C4H3N2)(η2‐Tp)], 5 , respectively. Complexes 4 and 5 are characterized by X‐ray diffraction analyses. |
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| Keywords: | 5‐Bromo‐pyrimidine Pyrrolidinyl dithiocarbamate Tris(pyrazoyl‐1‐yl)borate Palladium X‐ray diffraction |
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