三个基于柔性4-取代双三唑配体锌配位聚合物的合成、晶体结构

摘要

以1,2-二(4H-1,2,4-三唑)乙烷(btre)和3个二元羧酸1,3-金刚烷二酸(H2adc)、对苯二甲酸(1,4-H2bdc)和邻苯二甲酸(1,2-H2bdc)为配体,在室温下合成了3个锌配位聚合物{[Zn(μ2-btre)(μ2-adc)]H2O}n(1·H2O)、[Zn2(μ2-btre)(μ2-1,4-bdc)2(H2O)2]n (2)和[Zn(μ2-btre)(μ2-1,2-bdc)]n(3).测试了3个配合物的晶体结构,并用红外光谱、元素分析和粉末衍射对其进行表征.晶体结构测试表明,1为2D(4,4)网格结构,-π作用将相邻的2D网格连接成3D结构.配合物2和3分别是3D和2D(4,4)网格结构.另外,研究了3个配合物的热稳定性和室温下的固体荧光.%Three new coordination polymers,{[Zn(μ2-btre)(μ2-adc)] · H2O}n (1· H2O),[Zn2(μ2-btre)(μ2-1,4-bdc)2(H2O)2]n(2) and [Zn(μ2-btre)(μ2-1,2-bdc)]n (3) were synthesized at room temperature condition and characterized by IR spectra,elemental analyses,single-crystal and powder X-ray diffractions (btre=1,2-bis(1,2,4-triazol-4-yl)ethane,adc=1,3-adamantanedicarboxylate,1,4-bdc=1,4-benzenedicarboxylate,1,2-bdc=1,2-benzenedicarboxylate).Structural analyses reveal that complex 1 exhibits a 2D (4,4) network,and the adjacent 2D (4,4) networks are connected into 3D network by strong π-π interactions.The structure of 2 and 3 are 3D and 2D (4,4) network,respectively.Thermal stabilities and the solid-state luminescence at room temperature of 1,2 and 3 were investigated.CCDC:1848223,1;1848224,2;1848225,3.