Magnetic and Conducting Properties of New Halide-Bridged Mixed-Valence Cu<sup>I</sup>−Cu<sup>II</sup> 1D Coordination Polymers Including a Hexamethylene Dithiocarbamate Ligand
作者:Takashi Okubo、Naoya Tanaka、Kyung Ho Kim、Hironobu Yone、Masahiko Maekawa、Takayoshi Kuroda-Sowa
DOI:10.1021/ic1003098
日期:2010.4.19
New mixed-valence CuI−CuII coordination polymers with one-dimensional, infinite-chain structures, [CuI2CuIIX2(Hm-dtc)2(CH3CN)2]n [Hm-dtc− = hexamethylene dithiocarbamate; X = Br− (1), I− (2)], have been prepared and structurally characterized by X-ray diffraction. These complexes consist of a mononuclear copper(II) unit CuII(Hm-dtc)2 and dinuclear copper(I) units CuI2(CH3CN)2X2. Magnetic studies have
新混合价铜我-Cu II具有一维,无限链结构的配位聚合物,[铜余2的Cu II X 2(HM-DTC)2(CH 3 CN)2 ] Ñ [HM-DTC - =六亚甲基二硫代氨基甲酸酯 X = Br的- (1),I - (2)],已经制备并通过X-射线衍射结构表征。这些络合物由单核铜(II)单元Cu II(Hm-dtc)2和双核铜(I)单元Cu I 2(CH3 CN)2 X 2。磁性研究表明,这些配合物在通过双核铜的Cu II离子的未成对电子之间具有相对较强的反铁磁相互作用[ J = -26.9 cm -1(1)和J = -22.2 cm -1(2)]。I)链中Cu I 2 X 2的卤化物单元。1和2的电气特性用阻抗谱技术进行了研究,结果表明,这些配合物表现出具有吸引力的半导性,具有较小的活化能[ E a = 0.562 eV(1)和E a = 0.479 eV(2)]。