异构多羧酸配体的两种Zn(II)配位聚合物的水热合成和表征
Solvothermal Synthesis and Characterization of Two Zn(Ⅱ) Coordination Polymers with Isomeric Multi-carboxylate Ligands
作者单位E-mail
杨诗吟 中国民航大学理学院, 天津 300300  
才华 中国民航大学理学院, 天津 300300 caihua-1109@163.com 
张琦 中国民航大学理学院, 天津 300300  
周玉萍 中国民航大学理学院, 天津 300300  
任晓晨 中国民航大学理学院, 天津 300300  
谢璐璐 中国民航大学理学院, 天津 300300  
摘要: 利用异构的半刚性多羧酸配体3,5-二(3-羧基苯氧基)苯甲酸(3-H3BCP),3,5-二(4-羧基苯氧基)苯甲酸(4-H3BCP)和刚性双三唑配体4-(4-(4H-1,2,4-三唑-4-基)苯基)-4H-1,2,4-三唑(L)在相似的水热条件下与金属Zn(Ⅱ)离子反应,制得混合配体的配位聚合物{[Zn(3-HBCP)(L)]·0.5H2O}n1)和[Zn(4-HBCP)(L)0.5]n2)。配合物1为含有双核簇的(4,4)连接的二维网络结构,而配合物2为三重互穿的2D+2D→2D平行网络结构。通过X射线单晶衍射、元素分析、红外光谱、紫外光谱以及荧光光谱其进行了表征。
关键词: 异构体  半刚性多羧酸  发光性能
基金项目: 中央高校专项研究基金(No.3122017071)、本科生创新创业培训计划(No.20161005959)、天津市分子结构与功能材料重点实验室开放基金(天津师范大学)和国家自然科学基金青年基金(No.21501196)资助项目。
Abstract: Two isomeric semi-rigid multi-carboxylate ligands 3,5-bi(3-carboxyphenoxy) benzoic acid (3-H3BCP), 3,5-bi(4-carboxyphenoxy)benzoic acid (4-H3BCP) and one rigid bridging bis-triazole 4-(4-(4H-1,2,4-triazol-4-yl)phenyl)-4H-1,2,4-triazole (L) have been employed to react with Zn(Ⅱ) salts under similar solvothermal reactions. Two novel zinc(Ⅱ) mixed-ligand coordination polymers, namely, {[Zn(3-HBCP)(L)]·0.5H2O}n (1) and[Zn(4-HBCP)(L)0.5]n (2) have been isolated. Complex 1 displays a (4,4)-connected 2D cluster-based network while 2 displays an usual 3D fold 2D+2D→2D parallel entangled network. Solid-state luminescent properties and thermal analyses of 1~2 also have been determined indicating strong fluorescent emissions and good thermal stabilities. Different coordination modes of two semi-rigid multi-carboxylate ligands and L also have been briefly discussed, which also reveal great potential in the construction of these novel mixed-ligand luminescent frameworks with diverse structural motifs and unique functional properties.
Keywords: isomer  semi-rigid multi-carboxylate  photoluminescent properties
投稿时间:2017-06-12 修订日期:2017-09-19
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杨诗吟,才华,张琦,周玉萍,任晓晨,谢璐璐.异构多羧酸配体的两种Zn(II)配位聚合物的水热合成和表征[J].无机化学学报,2018,34(1):179-186.
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