导　　师： 马建方

学科专业： 070301

授予学位： 硕士

作　　者： ;

机构地区： 东北师范大学

摘　　要： 本论文利用多三氮唑中性配体/(htpmb,结构如Scheme1所示/)为主配体,zn/(Ⅱ/)和Cd/(Ⅱ/)为中心金属,在水热情况下与羧酸根阴离子和多金属氧酸盐阴离子自组装,获得了10个结构新颖的配位聚合物。探索它们的合成条件,研究其网络所属拓扑类型,并考察了pH值和阴离子对化合物结构的影响以及金属离子和含氮配体对拓扑结构的影响。文中用红外光谱/(IR/)和元素分析法对它们进行了表征。此外,还研究了它们的发光性质及部分化合物的光催化行为。Scheme1. htpmb配体的结构. 1.以htpmb为主配体,芳香羧酸/(H2L1是对苯二甲酸,H2L2是水杨酸,HL3是苯甲酸,H3L4是5-羟基间苯二甲酸/)作为辅助配体,选取d10离子为中心金属,得到了7个配位聚合物。化合物1和2呈现的是具有三维/(45·55·65/)/(46·69/)拓扑网络的双节点6-连接框架；化合物3和4展现了三维/(4·64·8/)/(42·62·82/)拓扑网络的二重互穿结构；化合物5和6展示了简单的一维链状结构,存在于化合物5中的氢键进一步稳定了其结构；化合物7具有一维双链结构。 2.以htpmb为主配体,八钼酸盐为阴离子,Zn/(Ⅱ/)和Cd/(Ⅱ/)为中心离子,得到了3个配位聚合物。化合物8展示了三维/(5,6/)-连接网络,拓扑符号是化合物9体现了三维/(4,5,6,6,7/)-连接网络,符号是 /[Zn4/(htpmb/)2/(θ-Mo8O26/)/(OH/)4/(H2O/)2.5/]·0.5H2O /(8/) /[Zn6/(htpmb/)2/(γ-Mo8O26/)2/(SO4/)/(OH/)2/(H2O/)4/]·6.5H2O /(9/) /[Cd2/(htpmb/)/(γ-Mo8O26/)/(H2O/)2/]·4.5H2O /(10/) Ten new coordination polymers with novel structures based on a multi/(triazole/) neutral ligand /(htpmb, the structure is shown in Scheme1/), carboxylates//polyoxometalates anions and Zn/(Ⅱ/)//Cd/(Ⅱ/) ions under hydrothermal conditions have been obtained. The synthesis conditions, types of topological structures, influences of the pH values and the types of anions on the structures of the compounds, effects of the kinds of metal ions and N-donor ligands on topological structures have been investigated. These compounds have been characterized by infrared spectra /(IR/) and elemental analyses. In addition, the luminescent properties of ten compounds and photocatalytical behaviors of certain compounds have also been studied. Scheme1. The structure of htpmb ligand. 1. The reactions of htpmb and d10metal ions with the help of aromatic carboxylic acids /(H2L1=1,4-benzenedicarboxylic acid, H2L2=2-hydroxy-benzoic acid, HL3=benzoic acid and H3L4=5-hydroxy-1,3-benzenedicarboxylic acid/) afford seven coordination polymers. Compounds1and2reveal the3D binodal6-connected nets with Schlafli symbol of /(45·55·65/)/(46·69/) topology. Compounds3and4show the3D2-fold interpenetrating frameworks with /(4·64·8/)/(42·62·82/) topology. Compounds5and6display1D chain structures, and the hydrogen-bonding interaction further stabilizes the structure in compound5. Compound7possesses a1D double chain structure. /[Zn2/(htpmb/)/(L3/)4/]/(6/) /[Cd4/(htpmb/)/(L4/)2/(OH/)2/(H2O/)3/]·8H2O /(7/) 2. The combinations of htpmb and octamolybdate anions in the presence of Zn/(II/) andCd/(II/) ions provide three coordination polymers. Compound8exhibits3D /(5,6/)-connectednet with /(32·43·5·63·7/)/(32·44·54·62·73/) topology. Compound9displays3D/(4,5,6,6,7/)-connected framework with Schl fli symbol of/(32·4·5·62/)/(32·42·52·63·8/)/(34·42·52·64·72·8/)/(34·42·52·66·9/)/(34·43·5·68·75/) topology. Compound10is a3D /(3,4,4,6,6/)-connected net with Schl fli symbol of/(3·6·7/)/(32·4·62·7/)/(34·42/)/(32·66·76·10/)/(33·4·63·74·84/) topology. /[Zn4/(htpmb/)2/(θ-Mo8O26/)/(OH/)4/(H2O/)2.5/]·0.5H2O /(8/) /[Zn6/(htpmb/)2/(γ-Mo8O26/)2/(SO4/)/(OH/)2/(H2O/)4/]·6.5H2O /(9/) /[Cd2/(htpmb/)/(γ-Mo8O26/)/(H2O/)2/]·4.5H2O /(10/)

关 键 词： 配位聚合物 晶体结构 多三氮唑配体 发光 拓扑结构

分 类 号： [O641.4]

领　　域： [理学] [理学]