高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

利用二次球形配位构筑疏水型隧道框架结构

袁雷, 郭放, 张爽, 胡志泉, 夏芳, 郭文生   

  1. 辽宁大学化学学院, 沈阳 110036
  • 收稿日期:2007-01-15 修回日期:1900-01-01 出版日期:2007-10-10 发布日期:2007-10-10
  • 通讯作者: 郭文生

Hydrophobic Channel Framework Constructed by Second-sphere Coordination

YUAN Lei, GUO Fang, ZHANG Shuang, HU Zhi-Quan, XIA Fang, GUO Wen-Sheng*   

  1. College of Chemistry, Liaoning University, Shenyang 110036, China
  • Received:2007-01-15 Revised:1900-01-01 Online:2007-10-10 Published:2007-10-10
  • Contact: GUO Wen-Sheng

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被引次数

9

摘要： 质子化N,N,N',N'-四苄基乙二胺(L)可与[MCl4]2-(M=Mn, Co, Cu)形成二次球形配合物. 通过N—H…Cl相互作用构筑了1D带状和2D层状框架结构, 层中配体L的苄基通过C—H…Cl相互作用分别采取水平和垂直取向, 使1D带状和2D层状呈现凸凹交替排列. 通过层间凸凹部位的C—H…H—C相互作用, 形成了层间空穴, 进而构筑成了3D疏水型隧道框架结构, 乙醇分子能够填充于隧道之中. 在L·2H+·[CuBr4]2-晶体中, 由于[CuBr4]2-没有与配体L的苄基形成C—H…Br氢键, 使配体L的苄基采取了同向取向. 因而, 形成的2D层状框架结构是平展的, 未形成3D疏水型隧道框架结构, 也未发现与乙醇分子的包结现象.

关键词: N, N, N’,N’-四苄基乙二胺, 晶体工程, 二次球形配位, 四氯合锰/钴/铜, 四溴合铜

Abstract: Protonated N,N,N',N'-tetrabenzyl-ethylenediamine(L) can form second-sphere complexes with [MCl4]2-(M=Mn, Co, Cu). In these crystals, thick 1D ribbons and 2D layer frameworks are constructed through N—H…Cl interactions. The orientations of benzyl groups of compound L in the ribbon or layer are horizontal and perpendicular, respectively, through C—H…Cl interactions, so that the ribbon and layer with alternately convex-concave site arrangement are formed. The caves between layers are formed by C—H…H—C interaction of convex-concave sites on the layers, thus constructing a 3D hydrophobic channel framework, and alcohol molecules are accommodated in the channel. However, due to the absence of C—H…Br interactions between benzyls and [CuBr4]2- in L·2H+·[CuBr4]2-, the orientation of benzyls of compound L adopts the same direction as a molecular long axis , thus, the 2D layer framework formed by compound L with [CuBr4]2- is planar, and the 3D hydrophobic channel framework and the inclusion of alcohol molecules are not observed.

Key words: N,N,N’,N’-Tetrabenzyl-ethylenediamine, Crystal engineering, Second-sphere coordination, [MnCl4/CoCl4/CuCl4]2-, [CuBr4]2-

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