| 以9，10-双(咪唑基)蒽为配体的锌配合物的合成、晶体结构和荧光性质 |
| Syntheses, Crystal Structures and Photoluminescent Properties of Three Zinc(Ⅱ) Coordination Polymers Constructed from 9,10-Di(1H-imidazol-1-yl)anthracene |
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| 摘要: 以9，10-双（咪唑基）蒽（DIA）和硝酸锌为原料，分别与对苯二甲酸（H2bdc）、二苯甲酮-4，4'-二羧酸（H2cdc）、反式-1，4-环己二甲酸（H2chdc）在溶剂热条件下反应，得到3个结构不同的配位聚合物[Zn2（DIA）（bdc）2]n（1）、{[Zn（DIA）（cdc）]·H2O}n（2）和[Zn（DIA）（chdc）]n（3）。对它们进行了X射线单晶衍射分析、元素分析、红外光谱分析和热重分析。单晶结构分析显示，配合物1是第一例拥有三维（4，7）-连接的{32.4.52.6}{32.48.54.65.72}2拓扑结构；配合物2具有二维格子状结构，层与层之间通过O-H…O和π…π弱相互作用形成三维超分子结构；而配合物3具有二维两重贯穿的层状结构。结果说明有机羧酸的长度和刚柔性在配合物组装过程中起着非常重要的作用。此外，在室温下对3个配合物进行了荧光性质分析。 |
| 关键词: 锌配合物 双咪唑配体 羧酸配体 晶体结构 荧光性质 |
| 基金项目: 国家自然科学基金（No.21671107）资助项目。 |
| Abstract: Three zinc(Ⅱ) coordination polymers, [Zn2(DIA)(bdc)2]n (1), {[Zn(DIA)(cdc)]·H2O}n (2) and [Zn(DIA)(chdc)]n (3) (DIA=9,10-di(1H-imidazol-1-yl)anthracene, H2bdc=1,4-benzenedicarboxylic acid, H2cdc=4,4'-carbonyldibenzoic acid, H2chdc=trans-1,4-cyclohexanedicarboxylic acid), have been synthesized and characterized by IR spectroscopy, elemental analyses, thermogravimetric analyses and single-crystal X-ray diffraction. Structural analyses reveal that complex 1 displays an unprecedented three-dimensional (3D) (4,7)-connected framework featuring {32.4.52.6} {32.48.54.65.72}2 topology. Complex 2 has a two-dimensional (2D) structure, which is further packed into a 3D supramolecular architecture by intermolecular weak interactions, whereas complex 3 features a 2D two-fold interpenetrating layer structure. The results show that the length and the flexibility of the carboxylates exert obvious influence on the resulting architectures. Meanwhile, the photoluminescent properties of three complexes at room temperature were also investigated. |
| Keywords: zinc (Ⅱ) coordination polymer bis (imidazole) ligand dicarboxylate crystal structure photoluminescence |
| 投稿时间：2020-06-03 修订日期：2020-09-06 |
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| 施梅,喻敏,刘光祥.以9，10-双(咪唑基)蒽为配体的锌配合物的合成、晶体结构和荧光性质[J].无机化学学报,2020,36(12):2367-2376. |
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