基于氢键和π-π堆积作用组装的新型超分子配合物[Cu_2(Hhbd)_2(mphen)_2]·2H_2O

Supramolecular Assemblies of a Novel Complex[Cu_2(Hhbd)_2(mphen)_2]·2H_2O via Hydrogen Bonding and π-π Stacking Interactions

利用水热法合成了标题配合物[Cu2(Hhbd)2(m phen)2].2H2O(H3hbd=羟基丁二酸,m phen=5-甲基-1,10-邻菲咯啉),对其进行了元素分析、红外光谱、热分析等表征,并测定了晶体结构。配合物属单斜晶系,空间群P 21/m;晶胞参数:a=1.1222(11)nm,b=1.2701(12)nm,c=1.2941(12)nm,β=103.498(7);°Z=4;最终偏离因子R=0.0483。配合物中两个羟基丁二酸根(Hhbd)采取三齿配位方式连接两个畸变的八面体Cu(II)配合单元,形成了新颖的双核结构。毗邻的双核结构通过O—H…O氢键和π-π堆积作用组装为具有隧道的三维超分子体系。

A novel supramoleeular complex [Cu2 （Hhbd）2 （mphen）2]？ 2H2O （Hhbd = hydroxybutanedioic, mphen=5-methyl-1,10-phenanthroline） has been hydrothermally synthesized and characterized by means of elemental analysis ; IR spectrum ; thermal analysis and single crystal X-ray diffraction. Crystal structural analysis reveals that the complex is Monoclinic, with space group P21/m, a=1. 1222（11） nm,b=1. 2701 （12） nm,c= 1. 2941（12） nm,β= 103. 498（7）°; Z=4; R=0. 0483. The Cu （Ⅱ） atoms take six-coordinated octahedral geometry, the two Cu（Ⅱ） coordinate units are connected by two Hhbd with tridentate coordinating mode, forming a new dinuclear structure. The neighboring dinuclear units are further assembled a 3D structure with porous channels via intramolecular O-H…O hydrogen bonding and π-π Stacking.