The ligand bis(2-pyridylmethyl)sulfide L′ and the complexes it formed were used as simple probes for the complexes of 2,5-bis(2-pyridylmethylsufanylmethyl)pyrazine L. L′ and L were reacted in 1 ∶ 1 and 1 ∶ 2 molar ratios, respectively, with both CuCl2 and CuI. Crystal structures of all four complexes were determined, CuCl2L′·H2O (1), Cu2Cl4L (2), Cu2I2L′2 (3) and [Cu2I2L]∞ (4). The Cu(II) ions in 1 and 2 were square pyramidal. For 2 crystal
structures of the anti (2a) and the syn (2b) isomers were determined and both were found to form proto-polymeric chains. Complex 3 was dimeric and contained Cu2I2 bridges. The structure of 4 revealed one-dimensional polymeric chains in which the ligands were joined by Cu2I2 bridges. This work demonstrated the successful use of the complexes of L′ as probes for 4 and to a lesser extent for 2a and 2b.
以
配体双(2-
吡啶基甲基)
硫醚L'及其形成的配合物作为2,5-双(2-
吡啶基甲基磺基甲基)
吡嗪L配合物的简单探针。L'与L按1∶1和1进行反应。分别与CuCl2和CuI两者摩尔比∶2。确定了所有四种配合物的晶体结构:CuCl2L′·
H2O (1)、Cu2Cl4L (2)、 L′2 (3) 和 [ L]∞ (4)。 1和2中的Cu(II)离子是方锥体。适用于2个
水晶
确定了反式 (2a) 和顺式 (2b) 异构体的结构,发现两者均形成原聚链。复合物 3 是二聚体并含有
Cu2I2 桥。 4的结构揭示了一维聚合物链,其中
配体通过 桥连接。这项工作证明了 L' 复合物成功地用作 4 的探针,并在较小程度上用作 2a 和 2b 的探针。