Synthesis,Structures and Spectroscopic Properties of Platinum(II), Palladium(II) and Copper(I) Halide Complexes with Pyrimidine‐phosphine Ligand |
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| Authors: | Jun‐Feng Zhang Xin Gan Quan‐Qing Xu Jian‐Hua Chen Mei Yuan Wen‐Fu Fu Prof Dr |
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| Institution: | 1. Kunming / P.R. China, College of Chemistry and Chemical Engineering, Yunnan Normal University;2. Peking / P.R. China, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences;3. Peking / P.R. China, Technical Institute of Physics and Chemistry, Chinese Academy of SciencesTechnical Institute of Physics and Chemistry, Chinese Academy of Sciences, Peking 100080, P.R. China, Fax: (+8610) 6255 4670 |
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| Abstract: | The reactions of pyrimidine‐phosphine ligand N‐(diphenylphosphino)methyl]‐2‐pyrimidinamine ( L ) with various metal salts of PtII, PdII and CuI provide three new halide metal complexes, Pt2Cl4(μ‐L)2·2CH2Cl2 ( 1 ), Pd2Cl4(μ‐L)2 ( 2 ), and Cu2(μ‐I)2L2]n ( 3 ). Single crystal X‐ray diffraction studies show that complexes 1 and 2 display a similar bimetallic twelve‐membered ring structure, while complex 3 consists of one‐dimensional polymeric chains, which are further connected into a 2‐D supramolecular framework through hydrogen bonds. In the binuclear complexes 1 and 2 , the ligand L serves as a bridge with the N and P as coordination atoms, but in the polymeric complex 3 , both bridging and chelating modes are adopted by the ligand. The spectroscopic properties of complexes 1 ‐ 3 as well as L have been investigated, in which complex 3 exhibits intense photoluminescence originating from intraligand charge transfer (ILCT) π→π* and metal‐to‐ligand charge‐transfer (MLCT) excited states both in acetonitrile solution and solid state, respectively. |
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| Keywords: | Platinum Palladium Copper P‐N ligand Crystal structure |
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