原位反应合成四唑金属配位聚合物:结构与磁性(英文)  

Two Magnetic Metal Coordination Polymers with Tetrazolyl Ligands through in situ Reactions

作　　者：李如茵[1] 高松[1] 

机构地区：[1]北京分子科学国家实验室,稀土材料化学及应用国家重点实验室,北京大学化学与分子工程学院,北京100871

出　　处：《无机化学学报》2008年第8期1229-1236,共8页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.20221101,20490210);科技部973(No.2006CB601102)资助项目

摘　　要：使用Demko-Sharpless方法,在溶剂热条件下可以安全、有效地获得含四唑基团的配体。基于此反应,引入叠氮短桥共配,获得了2个结构新颖的配位聚合物Co3(3-ptz)4(N3)2(H2O)2·4H2O(1)与Mn3(3-ptz)2(N3)4(H2O)·0.5H2O(2)。2个配合物中,通过反应获得的桥连配体3-(pyridinyl)tetrazole(3-ptz)阴离子与过量的叠氮作为短桥参与,均采取了多种配位模式,使得化合物具有复杂的结构。同时,四唑阴离子和叠氮均传递磁耦合作用。The Demko-Sharpless＇ is a very effective method for synthesis of the tetrazole compounds. Using this method, two coordination polymers have been obtained using solvent thermal reactions, and characterized structurally and magnetically. The 2D layer 1, Co3（3-ptz）4（N3）2（H2O）2·4H2O is consisted of 1D azido-bridged Co2＋ chains linked through the coordinated Co2＋ building block. The 3D network 2, Mn3（3-ptz）2（N3）4（H2O）·05H2O is consisted with complicated 2D azido-bridged Mn2＋ layers pillared by bridge ligands. The excessive azide ions in the reaction adopt μ-1,1, μ-1,3 modes in 1 and μ-1,1, μ-1,3, μ-1,1,3 modes in 2, bridge the neighboring metal ions and transmit magnetic couplings. The 3-（pyridinyl）tetrazole anion, which is the production of the Demko-Sharpless＇ reaction, bridges with bidentate and tridentate mode in 1, with tridentate and pentadentate mode in 2. They not only bridge the metal ions, but also transmit magnetic couplings along with azide ions. CCDC： 687278, 1, 687279, 2.

关 键 词：四唑 叠氮 钴 锰 结构 磁性 

分 类 号：O614.711[理学—无机化学] O614.81[理学—化学]