北京大学学报（自然科学版）

一个奇特的配位高分子——三腿梯子｛Zn3(Ac)4(4，4′-bpy)3[N(CN)2]2}n的合成和结构

孙柏旺,王哲民,高松   

  1. 北京大学稀土材料化学及应用国家重点实验室，北京大学-香港大学稀土材料与生物无机化学联合实验室，北京，100871
  • 收稿日期:2000-06-23 出版日期:2001-03-20 发布日期:2001-03-20

Synthesis andStructure of the First Three leg Ladder of Coordination Polymer:｛Zn3(Ac)4(4, 4′-bpy)3[N(CN)2]2}n

SUN Baiwang，WANG Zhemin，GAO Song   

  1. State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University-University of Hong Kong Joint Laboratory on Rare Earth Materials and Bioinorganic Chemistry, Peking University, Beijing, 100871
  • Received:2000-06-23 Online:2001-03-20 Published:2001-03-20

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摘要： 合成了配位高分子｛Zn3(Ac)4(4，4′-bpy)3[N(CN)2]2}n，并用X射线衍射表征了其结构，结构包含一个独特的三腿梯子。晶体参数：单斜，空间群C2/c, a=21.6034(13), b=11.4566(7), c=17.7982(12)Å, β=104.245(4)°，V=4269.6(5)Å3, Z＝4, Dc=1.607Mg/m3, μ=1.741cm-1，R1=0.0506, wR2＝0.0877。Zn(Ⅱ)原子位于梯子扶手和横栏的交点，两侧的Zn(1)原子具有三角双锥配位环境位，中间的Zn(2)原子呈八面体配位环境。

关键词: 配位高分子, 晶体, 梯子型结构

Abstract: The coordination polymer ｛Zn3(Ac)4(4, 4′-bpy)3[N(CN)2]2}n is prepared and characterized by X-ray diffraction. It is an unique threeleg molecular ladder. Crystal data:｛Zn3(Ac)4(4, 4′-bpy)3[N(CN)2]2}n, monoclinic, space group C2/c, a=21.6034(13)，b=11.4566(7)，c=17.7982(12)Å, β=104.245(4)°, V=4269.6(5)Å3，Z=4, Dc=1.607Mg/m3，μ=1.741cm-1, R1=0.0506 and wR2=0.0877. Zn(Ⅱ)atoms are located at the crosspoint of the “rungs” and “rails”. Each ZnⅡ atom located at the side rails has a trigonal bipyramid environment. The ZnⅡ(2) atom located at the crosspoint of the ladder displays octahedral coordination.

Key words: coordination polymer, crystal, ladder-like structure

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