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    題名: A new cyano-bridged one-dimensional polymeric mixed-valence CuII/CuI complex formed from reduction of a binuclear CuII complex with sodium cyanide
    作者: Huang, S. F.;魏和祥;Wei, Ho-hsiang;Wang, Yu
    貢獻者: 淡江大學化學學系
    關鍵詞: Copper complexes;mixed-valence CuI/CuII complexes;polymeric copper complexes;X-ray structure;magnetic property
    日期: 1997-03-04
    上傳時間: 2009-12-01
    出版者: Elsevier
    摘要: A new cyano-bridged polymeric mixed-valence CuII/CuI complex, [Cu(dien)2(CN)2Cu(CN)]n (2) (dien = diethylenetriamine) has been prepared by the partial reduction of the OH-bridged binuclear complex [Cu2(dien)2(OH)](ClO4)3 (1) with sodium cyanide. The X-ray crystal structure shows that 1 is a polymeric, linear mixed-valence CuI/CuII complex and consists of a one-dimensional three-coordinated [CuI(CN)]n chain, in which the CuI atoms are linked by two disordered CN bonding groups. The structure of each CuII atom consists of a square-pyramidal five-coordinate environment, in which the basal plane is formed by the three nitrogen atoms of the dien ligands and one carbon atom of the terminal cyanide group, and the apical position is occupied by the nitrogen atom of a bridging cyano ligand. This is the first example of one CuII centre coordinating with two different bonding types of the terminal CuII-CN and the bridging CuII-NC in a polymeric complex. The cryomagnetic behaviour has been investigated in the temperature range 4.2–300 K. There is a weak antiferromagnetic interaction between two intrachain copper(II) ions with J = −0.47cm−1.
    關聯: Polyhedron 16(10), pp.1747-1753
    DOI: 10.1016/S0277-5387(96)00455-X
    顯示於類別:[化學學系暨研究所] 期刊論文

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