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首页> 外文期刊>Crystal growth & design >One chiral and two achiral 3-D coordination polymers constructed by 2-phenyl imidazole dicarboxylate
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One chiral and two achiral 3-D coordination polymers constructed by 2-phenyl imidazole dicarboxylate

机译：由2-苯基咪唑二羧酸酯构成的一种手性和两种非手性3-D配位聚合物

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摘要

Two chiral three-dimensional (3-D) coordination polymers, [Cd _4(μ_3-HPhIDC)_2(μ_4-HPhIDC) _2(H_2O)] (1) and two achiral 3-D coordination polymers, [Mn_(1.5)(μ_3-PhIDC)(H_2O)_3] (2) and [Mn(μ3-HPhIDC)(H_2O)]_2} (3), have been synthesized by hydro(solvo)thermal reaction, employing 2-phenyl-1H-imidazole-4, 5-dicarboxylic acid (H_3PhIDC) as organic ligand, and characterized by single-crystal X-ray diffraction, elemental analyses, and IR spectra. Polymer 1 crystallizes in the orthorhombic chiral space group P2(1)2(1)2(1) and exhibits a 3-D framework, in which two-dimensional (2-D) layers are composed of right-handed helices along the b-axis and are further pillared by μ_4-HPhIDC~(2-) linkages. Polymer 2 crystallizes in trigonal chiral space group R3? and presents a novel 3-D structure, which is generated from 2-D honeycomb-like layers, containing similar right-handed helical chains along the a or b axes, respectively. Polymer 3 also has a 3-D architecture and is composed of novel 2-D stairlike layers in the bc plane. The theoretical prediction of the phenyl substituent effect of the H _3PhIDC ligand has first been presented.
机译：两种手性三维（3-D）配位聚合物[Cd _4（μ_3-HPhIDC）_2（μ_4-HPhIDC）_2（H_2O）]（1）和两种非手性3-D配位聚合物[Mn_（1.5）（ μ_3-PhIDC）（H_2O）_3]（2）和[Mn（μ3-HPhIDC）（H_2O）] _ 2}（3）是利用2-苯基-1H-咪唑- 4，5-二羧酸（H_3PhIDC）作为有机配体，并通过单晶X射线衍射，元素分析和IR光谱进行表征。聚合物1在正交晶体手性空间群P2（1）2（1）2（1）中结晶并显示3-D骨架，其中二维（2-D）层由沿b的右手螺旋组成轴和以μ_4-HPhIDC〜（2-）链接为基础。聚合物2在三角手性空间基团R 3中结晶。并提出了一种新颖的3-D结构，该结构是从2-D蜂窝状层生成的，分别沿a或b轴包含相似的右手螺旋链。聚合物3也具有3-D结构，并且由bc平面中的新型2-D楼梯状层组成。首先介绍了H _3PhIDC配体的苯基取代作用的理论预测。

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