刚性4-取代双三唑配体构筑的三个锌配合物的合成和荧光 |
Syntheses and Luminescence of Three Zinc Complexes Constructed by Rigid 4-Substituted Bis(1, 2, 4-triazole) Ligand |
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摘要: 在室温下合成了3个新的配位聚合物{[Zn(4-Nbdc)(btx)]·2H2O}n(1·2H2O)、[Zn(btx)1.5(1,3-bdac)]n(2)和{[Zn(mbtx)(1,3-bdc)(H2O)2]·H2O}n(3)(btx=1,4-二(4H-1,2,4-三唑)苯,mbtx=1,3-二(4H-1,2,4-三唑)苯,4-Nbdc=4-硝基邻苯二甲酸根,1,3-bdac=间苯二乙酸根,1,3-bdc=间苯二甲酸根),测试了配合物的单晶结构,并从元素分析、红外和粉末衍射等方面进行表征。单晶X射线衍射表明,配合物1是二维(4,4)网格结构,配合物2和3都是一维链状结构。配合物2中的π-π作用将一维链连接成三维网格结构。在配合物3中,分子间氢键将一维链连接成二维网格,2套二维网格在分子间氢键的作用下相互穿插得到2D+2D→2D的网格结构。同时,还研究了3个配位聚合物的荧光和热稳定性。 |
关键词: 1,3-二(4H-1,2,4-三唑)苯 1,4-二(4H-1,2,4-三唑)苯 π-π堆积 荧光 |
基金项目: 国家自然科学基金(No.21271035)、安徽省教育厅自然科学研究项目(No.KJ2020A0763)、安徽省高校质量工程项目(No.2021XSJJD02)、微纳粉体与先进能源材料安徽省教育厅重点实验室开放基金(No.CZU2102,CZU2103)和安徽省大学生创新创业训练计划项目(No.S202111306089)资助 |
Abstract: Three new coordination polymers, {[Zn(4-Nbdc) (btx)]·2H2O}n (1·2H2O),[Zn(btx)1.5(1,3-bdac)]n (2) and {[Zn(mbtx) (1,3-bdc) (H2O)2]·H2O}n (3) (btx=1,4-bis(4H-1,2,4-triazole)benzene, mbtx=1,3-bis(4H-1,2,4-triazole) benzene, 4-Nbdc=4-nitrophthalate, 1,3-bdac=1,3-phenylenediacetate, 1,3-bdc=1,3-benzenedicarboxylate), were synthesized under room temperature condition and characterized by single-crystal X-ray diffraction, elemental analyses, powder X-ray diffraction. Sing-crystal X-ray structural analysis show that complex 1 is 2D waved (4,4) network. 2 and 3 exhibit 1D chain, and the 1D chains are connected into a 3D network by π-π interaction in 2. The adjacent 1D chains are connected into a 2D network by intermolecular hydrogen bond in 3. Two sets of equivalent 2D networks catenate with each other to give a 2D+2D → 2D network through intermolecular hydrogen bond. Luminescence and thermogravimetric analysis of the three complexes were discussed. |
Keywords: 1,3-bis(4H-1,2,4-triazole)benzene 1,4-bis(4H-1,2,4-triazole)benzene π-π interaction luminescence |
投稿时间:2021-06-09 修订日期:2021-11-16 |
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彭艳芬,刘天宝,吴秋艳,武梦晴.刚性4-取代双三唑配体构筑的三个锌配合物的合成和荧光[J].无机化学学报,2022,38(2):344-352. |
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