二维配位聚合物[Cu(μ-I)(μ-4,4-bipy)]_n的溶液合成与晶体结构(英文)

Solution Synthesis and Crystal Structure of a 2D Coordination Polymeric Complex [Cu( μ-I)( μ-4,4-bipy)]_n

碘化亚铜和4,4′-二联吡啶在溶液中反应的二种方法可制备出标题化合物的2个不同红色晶体,结构表征出两种晶体分别是单斜C2/c(1)和四方I41/acd(2)空间群。在[Cu(μ-I)(μ-4,4-bipy)]n结构中,铜原子是处于与2个碘原子和2个相互扭曲4,4′-二联吡啶中的氮原子的扭曲四面体配位环境中,2个[Cu(μ-I)]2单元和2个桥式4,4′-二联吡啶配体形成1个[Cu2(μ-I)2(μ-4,4-bipy)]2直角单元,4个直角单元经4个4,4′-二联吡啶侧式桥联而形成1个大的八角环,并由此与直角单元相互垂直而形成1个二维框架结构。

Two isologous red crystals of the title compound, prepared in two methods from the reaction of CuI and 4,4＇-bipyridine （4,4＇-bipy） in solution, were structurally characterized with monoclinic C2/c （1） and tetragonal I41/acd （2） space groups. In the structure of [Cu（μ-I）（μ-4,4-bipy）],, the Cu atom is in a distorted tetrahedral envi- ronment with two I atoms and two N atoms of two mutual-twisted 4,4＇-bipys. Two [Cu（μ-I）]2 units and two bridging 4,4＇-bipy ligands form a [Cu2（μ-I）2（μ-4,4-bipy）]2 rectanglar unit. Four rectanglar units are side-bridged by four 4,4＇-bipy spaces to give a large octagonal ring alternately perpendicular to rectanglar unit to form a two-dimensional framework structure. CCDC： 295581, 1; 295582, 2.