Three copper coordination polymers containing organosulfur ligands ([CuI2(bpsb)3(ClO4)](ClO4)}n (1), [CuI2(bpsb)3Cl](ClO4)}n (2), and [CuII(bpb)2Br](ClO4)·3dmf·MeCN}n (3) (bpsb = 1,2-bis[(2-pyrimidinyl)sulfanylmethyl]benzene, bpb = 1,2-bis[(4-pyridyl)sulfanylmethyl]benzene, dmf = N, N-dimethylformamide)) were synthesized and characterized by X-ray structural analysis. Complexes 1 and 2 have similar structures. In both, each bpsb molecule exhibits an exo-bidentate coordination fashion and bridges 3-coordinated copper(I) and 4-coordinated copper(I) through pyrimidinyl rings. Thus, six copper(I) centers, three 3-coordinated and three 4-coordinated located at two different planes alternatively, are linked by six bpsb molecules forming a crown-like nanocavity; such nanocavities make up a 2-D lamellar structure. In complex 3, each copper(II) center adopts a distorted square pyramidal coordination mode; each bpb molecule acts as an exo-bidentate ligand through coordinating to copper(II) atoms in two different directions to form a square unit with solvent molecule guests. Such square units share copper atoms and generate a single-stranded infinite 1-D chain structure.
三种含有有机
硫配体的
铜配位聚合物([CuI2(bpsb)3(
ClO4)]( )}n (1)、[CuI2(bpsb)3Cl]( )}n (2)和[CuII(bpb)2Br]( )-3dmf-MeCN}n (3))(bpsb = 1、2-双[(2-
嘧啶基)
硫甲基]苯,bpb = 1,2-双[(4-
吡啶基)
硫甲基]苯,dmf = N, N-二甲基甲酰胺)的合成,并通过 X 射线结构分析对其进行了表征。络合物 1 和 2 具有相似的结构。在这两种络合物中,每个 bpsb 分子都表现出外向-同位配位方式,并通过
嘧啶环连接 3 配位
铜(I)和 4 配位
铜(I)。因此,6 个 bpsb 分子将 6 个
铜(I)中心(3 个 3 配位中心和 3 个 4 配位中心交替位于两个不同的平面上)连接起来,形成了一个类似皇冠的纳米空腔;这种纳米空腔构成了一种二维薄片结构。在复合物 3 中,每个
铜(II)中心都采用了扭曲的正方形
金字塔配位模式;每个 bpb 分子作为外配
配体,通过在两个不同方向上与
铜(II)原子配位,与溶剂分子客体形成一个正方形单元。这些方形单元共享
铜原子,并生成单链无限一维链结构。