3,6-二氨基吖啶对苯二甲酸超分子化合物的合成、晶体结构和性质
首发时间:2010-04-13
摘要:合成了由3,6-二氨基吖啶(3,6-diaminoacridinum, DAA)和对苯二甲酸(benzene-1,4-dicarboxylic acid, H2BDC)共同构建的超分子有机晶体[(HDAA)2(BDC)(H2BDC)](1),通过元素分析和单晶X射线衍射对化合物进行了表征。单晶X射线衍射分析表明超分子化合物1属于三斜晶系,P-1空间群,a =1.2735(3) nm,b =1.6441(3) nm,c =1.8771(4) nm,V =3.4546(12) nm3,Z = 4,R1 = 0.0668,wR2 = 0.1260。在晶体结构1中,两个H2BDC分子通过O-H…O氢键与一个BDC相连接形成了一维的(H2BDC)2-BDC-(H2BDC)2链状结构,质子化的DAA分子与(H2BDC)2-BDC-(H2BDC)2分子链结构通过N-H…O氢键作用相连接形成了二维层状结构。层与层之间通过氢键作用,最终组装成了三维的超分子结构。在结构内BDC间存在较强的π…π作用,苯环间的平均距离为0.3568 nm;HDAA之间存在着π…π和C-H…π相互作用,将分子连接成带状结构。荧光光谱分析结果表明,1在紫外光的激发下有良好的发光特性。
For information in English, please click here
Synthesis, crystal structure and properties of supramolecular complex based on H2BDC and 3,6-diaminoacridinum
Abstract:A supramolecular complex [(HDAA)2(BDC)(H2BDC)](1)(DAA = 3,6-diaminoacridinum, H2BDC = benzene-1,4-dicarboxylic acid) has been synthesized under hydrothermal condition and characterized by elemental analysis and single-crystal X-ray diffraction. Crystal data of complex 1: Triclinic, P-1, a =1.2735(3) nm, b =1.6441(3) nm, c =1.8771(4) nm, V =3.4546(12) nm3, Z =4, R1 = 0.0668, wR2 = 0.1260. There are intermolecular hydrogen bonding interactions between two H2BDC moleculars and BDC resulting in one-dimensional chain structure. The chains are interconnected by the N-H…O hydrogen bonding to HDAA molecules leading to a two-dimensional layer, which are contacted by hydrogen bonds lead to the formation of supramolecular networks.π…π stacking interactions also occur in the 1. Distance between two layers is 0.3568 nm. This complex shows photoluminescence property indicating that it may be applied in the development of luminescent materials.
Keywords: crystal structure hydrogen bonding π…π interaction photoluminescence
论文图表:
引用
No.4188122269127115****
同行评议
勘误表
3,6-二氨基吖啶对苯二甲酸超分子化合物的合成、晶体结构和性质
评论
全部评论0/1000