Reversible Solid State Hydration andDehydration Process Involving Anion Transfer in a Self-Assembled Cu2 System
Reversible Solid State Hydration andDehydration Process Involving Anion Transfer in a Self-Assembled Cu2 System
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自组装 Cu2 系统中涉及阴离子转移的可逆固态水合和脱水过程
作者：
T. Washizaki;R. Ishikawa;K.Yoneda,S. Kitagawa;S. Kaizaki;A. Fuyuhiro;andS. Kawata
以3，5-二（2-吡啶基）吡唑（Hbpypz）为原料，合成了超分子组装体[CuII 2（μ-bpypz）2Br 1.25（H2O）0.75] Br 0.75·2.25H2O（1）.组装体1由基于双bpypz-桥连双核构建单元的双核物种的超分子二聚体组成。超分子二聚体由于π-π相互作用而具有柔性。化合物1在固态下经历可逆的结构转变，涉及在水合-脱水时在铜中心处的可逆的顶端配体取代。
Supramolecular assembly [CuII2(μ-bpypz)2Br1.25(H2O)0.75]Br0.75·2.25H2O (1) was prepared by using 3,5-di(2-pyridyl)pyrazole (Hbpypz). Assembly 1 consists of supramolecular dimers of dinuclear species based on doubly bpypz− bridged dinuclear building blocks. The supramolecular dimer is flexible as a result of π⋯π interactions. Compound 1 undergoes reversible structural transformation in the solid state involving reversible apical-ligand substitution at the copper centers upon hydration–dehydration.