...
  • 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 three-dimensional coordination polymer based on the Zn4(μ3-OH)2 unit: Poly[[(μ4-benzene-1,4-dicarboxylato)bis(μ3-benzene-1,4-dicarboxylato)bis(μ3-hydroxido)bis(1,10-phenanthroline-5,6-dione)tetrazinc] dihydrate]
【24h】

A three-dimensional coordination polymer based on the Zn4(μ3-OH)2 unit: Poly[[(μ4-benzene-1,4-dicarboxylato)bis(μ3-benzene-1,4-dicarboxylato)bis(μ3-hydroxido)bis(1,10-phenanthroline-5,6-dione)tetrazinc] dihydrate]

机译：基于Zn4（μ3-OH）2单元的三维配位聚合物：聚[[（（μ4-苯-1,4-二羧酸基）双（μ3-苯-1,4-二羧酸基）双（μ3-羟基）双（1,10-菲咯啉-5,6-二酮）四锌]二水合物]

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

The title compound, {[Zn4(C8H4O4)3(OH)2(C12H6N2O2)2]·2H2O}n , has been prepared hydrothermally by the reaction of Zn(NO3)2·6H2O with benzene-1,4-dicarboxylic acid (H2bdc) and 1,10-phenanthroline-5,6-dione (pdon) in H2O. In the crystal structure, a tetranuclear Zn4(OH)2 fragment is located on a crystallographic inversion centre which relates two subunits, each containing a [ZnN2O4] octahedron and a [ZnO4] tetrahedron bridged by a μ3-OH group. The pdon ligand chelates to zinc through its two N atoms to form part of the [ZnN2O4] octahedron. The two crystallographically independent bdc2- ligands are fully deprotonated and adopt μ3-κO:κO':κO'' and μ4-κO:κO':κO'':κO''' coordination modes, bridging three or four ZnII cations, respectively, from two Zn4(OH)2 units. The Zn4(OH)2 fragment connects six neighbouring tetranuclear units through four μ3-bdc2- and two μ4-bdc2- ligands, forming a three-dimensional framework with uninodal 6-connected α-Po topology, in which the tetranuclear Zn4(OH)2 units are considered as 6-connected nodes and the bdc2- ligands act as linkers. The uncoordinated water molecules are located on opposite sides of the Zn4(OH)2 unit and are connected to it through hydrogen-bonding interactions involving hydroxide and carboxylate groups. The structure is further stabilized by extensive π-π interactions between the pdon and μ4-bdc2- ligands.
机译：标题化合物{[Zn4（C8H4O4）3（OH）2（C12H6N2O2）2·2H2O} n是通过Zn（NO3）2·6H2O与苯-1,4-二羧酸（ H2bdc）和1,10-菲咯啉-5,6-二酮（pdon）在H2O中。在晶体结构中，四核Zn4（OH）2片段位于晶体学反转中心，该中心涉及两个亚基，每个亚基均包含一个[ZnN2O4]八面体和一个通过μ3-OH基桥接的[ZnO4]四面体。 pdon配体通过其两个N原子与锌螯合，形成[ZnN2O4]八面体的一部分。两种晶体学上独立的bdc2-配体被完全去质子化，并采用μ3-κO：κO'：κO''和μ4-κO：κO'：κO''：κO'''配位模式，分别桥接三个或四个ZnII阳离子，由两个Zn4（OH）2单元组成。 Zn4（OH）2片段通过四个μ3-bdc2-和两个μ4-bdc2-配体连接六个相邻的四核单元，形成具有单链6连接α-Po拓扑的三维框架，其中四核Zn4（OH） 2个单元被认为是6个连接的节点，bdc2-配体充当接头。未配位的水分子位于Zn4（OH）2单元的相对侧，并通过涉及氢氧根和羧酸根的氢键相互作用与之相连。 pdon和μ4-bdc2-配体之间广泛的π-π相互作用进一步稳定了结构。

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