由4,4′-二甲基-2,2′-联苯二甲酸配体构筑的锌(Ⅱ)和镉(Ⅱ)双核配合物的合成、晶体结构、荧光及光催化性质  

Syntheses,Crystal Structures,Luminescence and Photocatalytic Activity of Three Dinuclear Zinc(Ⅱ)and Cadmium(Ⅱ)Coordination Compounds Based on 4,4′-Dimethyl-2,2′-biphenyldicarboxylic Acid

作　　者：陈金伟[1] 赵振宇[2] 黎彧[1] 邹训重 冯安生[1] CHEN Jin-Wei;ZHAO Zhen-Yu;LI Yu;ZOU Xun-Zhong;FENG An-Sheng(School of Light Chemical Engineering/Guangdong Research Center for Special Building Materials and Its Green Preparation Technology,Guangdong Industry Polytechnic,Guangzhou 510300,China;School of Intelligent Manufacturing and Equipment,Shenzhen Institute of Information Technology,Shenzhen,Guangdong 518172,China)

机构地区：[1]广东轻工职业技术学院,轻化工技术学院/广东省特种建筑材料及其绿色制备工程技术研究中心,广州510300 [2]深圳信息职业技术学院,智能制造与装备学院,深圳518172

出　　处：《无机化学学报》2020年第7期1344-1352,共9页Chinese Journal of Inorganic Chemistry

基　　金：广东省高等职业院校珠江学者岗位计划资助项目(2015,2018);广东轻院珠江学者人才类项目(No.RC2015-001);广东省高校创新团队项目(No.2017GKCXTD001);广州市科技计划项目(No.201904010381);深圳市科技计划项目(No.JCYJ20170817112445033,GGFW2017041209483817);广东省大学生科技创新培育专项(No.pdjh2019b0690);广东轻院科技成果培育项目(No.2A041108);广东轻院拔尖人才项目(No.2B141603);广东轻院优秀青年基金项目(No.QN2018-007);广东轻院黄大年式教师团队项目(No.2A02020308)资助。

摘　　要：采用水热方法,用4,4'-二甲基-2,2'-联苯二甲酸配体(H2dbda)和菲咯啉(phen)、2,2'-联吡啶(2,2'-bipy)分别与ZnCl2或Cd-Cl2·H2O反应,合成了3个零维双核配合物[Zn2(μ-dbda)2(phen)2(H2O)2](1)、[Zn2(μ-dbda)2(2,2'-bipy)2](2)和[Cd2(μ-dbda)2(2,2'-bipy)2(H2O)2]·2H2O(3),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3个配合物分别属于三斜和单斜晶系的P1和P21/n空间群。配合物1~3都具有零维双核结构,而且这些双核单元通过O-H…O氢键作用进一步形成了三维超分子框架。研究表明,配合物1~3在室温下能发出蓝色荧光。另外,研究了3个配合物对有机染料亚甲基蓝的光催化降解性能,结果表明配合物3可以高效地降解亚甲基蓝。Three 0 D dinuclear zinc(Ⅱ) and cadmium(Ⅱ) coordination compounds,namely [Zn2(μ-dbda)2(phen)2(H2O)2](1),[Zn2(μ-dbda)2(2,2’-bipy)2](2),and [Cd2(μ-dbda)2(2,2’-bipy)2(H2O)2]·2H2O(3),have been constructed hydrothermally using H2 dbda(H2 dbda=4,4’-dimethyl-2,2’-biphenyldicarboxylic acid),phen(phen=1,10-phenanthroline),2,2’-bipy(2,2’-bipy=2,2’-bipyridine),and zinc or cadmium chlorides.Single-crystal X-ray diffraction analyses reveal that three compounds crystallize in the triclinic or monoclinic systems,space groups P1 or P21/n.All compounds disclose a discrete dimer structure,which is assembled to a 3 D supramolecular framework through O-H…O hydrogen bonds.The luminescent and photocatalytic properties of three compounds were investigated,showing that compound 3 is a promising photocatalyst for the UV-light-driven degradation of methylene blue as a model organic dye pollutant.CCDC:1962704,1;1962705,2;1962706,3.

关 键 词：配位化合物 4 4'-二甲基-2 2'-联苯二甲酸 荧光 光催化 

分 类 号：O614.241[理学—无机化学] O614.242[理学—化学]