一维链状锌配位聚合物{[Zn(H_2O)_2(L)(phen)]·3H_2O}_n的合成、晶体结构和性能研究

Synthesis, Crystal Structures and Properties of 1D Zinc(Ⅱ) Coordination Polymer {[Zn(H_2O)_2(L)(phen)].3H_2O}_n

合成了一种锌配位聚合物{[Zn(H2O)2(L)(phen)].3H2O}n(1),其中,H2L=1-氨基-8-萘酚-3,6-二磺酸并利用元素分析、红外、紫外、荧光、热重和X-射线单晶衍射分析进行了表征。标题配合物属正交晶系,Pnma空间群,a=1.698 90(12)nm,b=0.661 88(11)nm,c=2.480 40(14)nm,V=2.789 1(5)nm3,Z=4,Mr=634.92,Dc=1.512 g.cm-3,R=0.058 6,wR=0.121 4。标题配合物呈现一维链状结构,链内L2-和phen配体之间存在π-π堆积作用,链与链之间通过氢键扩展为二维超分子网络。

A zinc polymer {[Zn （H2O）2 （L） （phen）] · 3HRO}n （1, H2L =1-hydroxy-8-amino-naphthahne-3,6-disulfonic acid, phen=1,10-phenanthroline） has been synthesized and structurally characterized by elemental analysis, IR, UV, PL, TG and single crystal X-ray diffraction. The title complex crystallized in orthorhombic with space group Prima, a=1.698 90（12） nm, b=0.661 88（11） nm, c=2.480 40（14） nm, V=2.789 1（5） nm3, Z=4, Mr=634.92, De= 1.512 g.cm-3, the final R=0.058 6, wR=0.121 4 for 1 994 observed reflections （I〉2δ（/））. In 1, L2- ligands bridge the six-coordinated zinc（B） ions forming 1D chains, which are further connected by intermolecular hydrogen- bonding interactions, generating a 2D supramolecular network. Moreover , aromatic π-π stacking interactions between phenyl rings of L2- dianion and phenanthrolines were detected. CCDC： 900913.