• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta crystallographica. Section C, Structural chemistry. >A two‐dimensional cadmium(II) coordination polymer constructed from 4‐carboxy‐1‐(4‐carboxylatobenzyl)‐2‐propyl‐1 H H ‐imidazole‐5‐carboxylate and 1‐(4‐carboxylatobenzyl)‐2‐propyl‐1 H H ‐imidazole‐4‐carboxylate ligands
【24h】

A two‐dimensional cadmium(II) coordination polymer constructed from 4‐carboxy‐1‐(4‐carboxylatobenzyl)‐2‐propyl‐1 H H ‐imidazole‐5‐carboxylate and 1‐(4‐carboxylatobenzyl)‐2‐propyl‐1 H H ‐imidazole‐4‐carboxylate ligands

机译：由4-羧基-1-（4-羧丁苄基）-2-丙基-1HH-咪唑-5-羧酸盐和1-（4-羧丁苄基）-2-丙基-1的二维镉（II）配位聚合物构成的二维镉（II）配位聚合物。-2-丙基-1 HH-咪唑-4-羧酸盐配体

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Crystals of poly[[aqua[μ 3 ‐4‐carboxy‐1‐(4‐carboxylatobenzyl)‐2‐propyl‐1 H ‐imidazole‐5‐carboxylato‐κ 5 O 1 O 1′ : N 3 , O 4 : O 5 ][μ 4 ‐1‐(4‐carboxylatobenzyl)‐2‐propyl‐1 H ‐imidazole‐4‐carboxylato‐κ 7 N 3 , O 4 : O 4 , O 4′ : O 1 , O 1′ : O 1 ]cadmium(II)] monohydrate], {[Cd 2 (C 15 H 14 N 2 O 4 )(C 16 H 14 N 2 O 6 )(H 2 O)]·H 2 O} n or {[Cd 2 (Hcpimda)(cpima)(H 2 O)]·H 2 O} n , (I), were obtained from 1‐(4‐carboxybenzyl)‐2‐propyl‐1 H ‐imidazole‐4,5‐dicarboxylic acid (H 3 cpimda) and cadmium(II) chloride under hydrothermal conditions. The structure indicates that in‐situ decarboxylation of H 3 cpimda occurred during the synthesis process. The asymmetric unit consists of two Cd 2+ centres, one 4‐carboxy‐1‐(4‐carboxylatobenzyl)‐2‐propyl‐1 H ‐imidazole‐5‐carboxylate (Hcpimda 2? ) anion, one 1‐(4‐carboxylatobenzyl)‐2‐propyl‐1 H ‐imidazole‐4‐carboxylate (cpima 2? ) anion, one coordinated water molecule and one lattice water molecule. One Cd 2+ centre, i.e. Cd1, is hexacoordinated and displays a slightly distorted octahedral CdN 2 O 4 geometry. The other Cd centre, i.e. Cd2, is coordinated by seven O atoms originating from one Hcpimda 2? ligand and three cpima 2? ligands. This Cd 2+ centre can be described as having a distorted capped octahedral coordination geometry. Two carboxylate groups of the benzoate moieties of two cpima 2? ligands bridge between Cd2 centres to generate [Cd 2 O 2 ] units, which are further linked by two cpima 2? ligands to produce one‐dimensional (1D) infinite chains based around large 26‐membered rings. Meanwhile, adjacent Cd1 centres are linked by Hcpimda 2? ligands to generate 1D zigzag chains. The two types of chains are linked through a μ 2 ‐η 2 bidentate bridging mode from an O atom of an imidazole carboxylate unit of cpima 2? to give a two‐dimensional (2D) coordination polymer. The simplified 2D net structure can be described as a 3,6‐coordinated net which has a (4 3 ) 2 (4 6 .6 6 .8 3 ) topology. Furthermore, the FT–IR spectroscopic properties, photoluminescence properties, powder X‐ray diffraction (PXRD) pattern and thermogravimetric behaviour of the polymer have been investigated.
机译：聚光晶体[[Aqua [μ3 -4-羧基-1-（4-羧丙基苄基）-2-丙基-1h-咪唑-5-羧基-κ5 o 1 o 1'：n 3，O 4：o 5] [μ4 -1-（4-羧丁苄基）-2-丙基-1 H-咪唑-4-羧基-κ7N3，O 4：O 4，O 4'：O 1，O 1'：o 1]镉（II）]一水合物]，{[Cd 2（C 15 H 14 N 2 O 4）（C 16 H 14 N 2 O 6）（H 2 O）]·H 2 O} N或{[CD 2（HCPIMDA）（CPIMA）（H 2 O）]·H 2 O} N，（I），得到1-（4-羧基苄基）-2-丙基-1 H-咪唑-4,5-二羧酸（H 3 CPIMDA）和氯化镉在水热条件下。该结构表明在合成过程中发生了H 3 CPIMDA的原位脱羧。不对称单元由两个CD 2+中心组成，一个4-羧基-1-（4-羧丁苄基）-2-丙基-1 H-咪唑-5-羧酸盐（HCPIMDA 2→）阴离子，一个1-（4-羧丁苄基）-2-丙基-1 H-咪唑-4-羧酸酯（CPIMA 2→）阴离子，一个协调水分子和一个晶格水分子。一个CD 2+中心，即CD1，是环己烷型，并显示略微扭曲的八面体CDN 2 O 4几何形状。另一个CD中心，即CD2，由源自一个HCPIMDA 2的七个原子协调？配体和三个cpima 2？配体。该CD 2+中心可以被描述为具有扭曲的封端的八面体配位几何形状。两个羧酸盐组的两个CPIMA 2的苯甲酸酯部分？ CD2中心之间的配体桥接生成[CD 2 O 2]单位，其进一步链接两个CPIMA 2？配体生产一维（1D）无限链条，基于大型26元环。同时，相邻的CD1中心由HCPIMDA 2连接？配体产生1D Zigzag链。两种类型的链通过CPIMA 2的咪唑羧酸甲酸酯单元的O原子通过μ2-η2双齿桥接模式连接？给出二维（2D）配位聚合物。简化的2D净结构可以描述为3,6协调的网，其具有（4 3）2（4 6.6 6 .8 3）拓扑。此外，已经研究了FT-IR光谱性质，光致发光性质，粉末X射线衍射（PXRD）图案和聚合物的热量标注行为。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号