| 由醚氧桥联羧酸配体构筑的铜(Ⅱ)、锌(Ⅱ)和锰(Ⅱ)配位聚合物的合成、晶体结构、荧光及光催化性质 | |
| Syntheses, Crystal Structures, Luminescence and Photocatalytic Activity of Cu(Ⅱ), Zn(Ⅱ) and Mn(Ⅱ) Coordination Polymers Based on Ether-Bridged Carboxylic Acids | |
| 摘要: 采用水热方法，用醚氧桥联的三羧酸配体（H3dpna）和四羧酸配体（H4deta）为主配体，2，2'-联吡啶（2，2'-bipy）和菲咯啉（phen）为辅助配体，分别与CuCl2·H2O、ZnCl2和MnCl2·4H2O反应，合成了2个二维配位聚合物{[Cu3（μ4-dpna）2（2，2'-bipy）2]·4H2O}n（1）和{[Zn3（μ4-dpna）2（2，2'-bipy）2（H2O）2]·6H2O}n（2）以及2个一维配位聚合物{[M2（μ4-deta）（phen）2（H2O）]·3H2O}n（M=Mn（3），Zn（4）），并对其结构、荧光和光催化性质进行了研究。结构分析结果表明配合物1和2属于单斜晶系，P21/c和C2/c空间群。由于采用了不同的金属离子，配合物1和2呈现不同的二维层结构。配合物3和4为异质同心结构，均属于单斜晶系，P21/n空间群。配合物3和4都具有一维链结构。另外，研究了这些配合物的荧光和对有机染料亚甲基蓝的光催化降解性能，结果表明配合物2和4可以高效地降解亚甲基蓝。 | |
| 关键词: 配位聚合物 醚氧桥联羧酸 荧光 光催化 | |
| 基金项目: 广东省高等职业院校珠江学者岗位计划资助项目（2015，2018）、广东省高校创新团队项目（No.2017GKCXTD001，2017GKCXTD006）、广州市科技计划项目（No.201904010381）和广东省高校特色创新类项目（No.2019GKTSCX010）资助。 | |
| Abstract: Two 2D coordination polymers, namely {[Cu3(μ4-dpna)2(2,2'-bipy)2]·4H2O}n (1) and {[Zn3(μ4-dpna)2(2,2'-bipy)2(H2O)2]·6H2O}n (2) as well as two 1D coordination polymers, namely {[M2(μ4-deta)(phen)2(H2O)]·3H2O}n (M=Mn (3), Zn (4)) have been constructed hydrothermally using H3dpna (H3dpna=5-(3',4'-dicarboxylphenoxy)nicotic acid) or H4deta (H4deta=2,3,2',3'-diphenyl ether tetracarboxylic acid) as a principal building block, 2,2'-bipy (2,2'-bipy=2,2'-bipyridine) or phen (phen=1,10-phenanthroline) as a auxiliary ligand, and copper, zinc or manganese chlorides. The products were isolated as stable crystalline solids and were characterized by IR spectra, elemental analyses, thermogravimetric analyses (TGA), and single-crystal X-ray diffraction analyses. Single-crystal X-ray diffraction analyses revealed that compounds 1 and 2 crystallize in the monoclinic system, space groups P21/c or C2/c. Compounds 1 and 2 disclose two different 2D sheet structures. The structural difference of compounds 1 and 2 is driven by the Cu(Ⅱ)/Zn(Ⅱ) nodes. Compounds 3 and 4 are isostructural and crystallize in the monoclinic system, space group P21/n. Both compounds show a 1D chain structure. The luminescent and photocatalytic properties of the compounds were investigated, showing that compounds 2 and 4 can effectively degrade methylene blue as a model organic dye pollutant. | |
| Keywords: coordination polymer ether-bridged carboxylic acid luminesce photocatalytic properties | |
| 投稿时间：2020-06-13 修订日期：2020-09-01 | |
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| 黎彧,曾福燃,周峰,李善吉.由醚氧桥联羧酸配体构筑的铜(Ⅱ)、锌(Ⅱ)和锰(Ⅱ)配位聚合物的合成、晶体结构、荧光及光催化性质[J].无机化学学报,2020,36(11):2124-2134. | |
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