Synthesis, structure, and magnetism of three manganese-organic framework with PtS topology  

作　　者：MENG QingGuo DAI FangNa ZHANG LiangLiang WANG RongMing SUN DaoFeng 

机构地区：[1]Key Lab of Colloid and Interface Chemistry,Ministry of Education [2]School of Chemistry and Chemical Engineering,Shandong University [3]Chemistry & Chemical and Environmental Engineering College, Weifang University [4]College of Science, China University of Petroleum (East China)

出　　处：《Science China Chemistry》2014年第11期1507-1513,共7页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China(21271117,21201179);the Special Fund for Postdoctoral Innovation Program of the Shandong Province(201202040);the China Postdoctoral Science Foundation(2012M 510106);a project of the Shandong Province Higher Educational Science and Technology Program(J06A55);the Shandong Provincial Natural Science Foundation(ZR2010BL011);the Shandong Natural Science Fund for Distinguished Young Scholars(BS2012CL038);the Fundamental Research Funds for the Central Universities(12CX04092A,13CX05015A)

摘　　要：Three 3D manganese-organic frameworks, Mn2(BPTC)(DMF)2(H2O)·DMF·3H2O(1), Mn2(BPTC)(bipy)(DMF)·DMF·H2O(2), and Mn2(BPTC)(phen)(DMF)·EtOH(3), have been solvothermally synthesized using 3,3′,5,5′-biphenyltetracarboxylic acid(H4BPTC). All complexes are characterized by PXRD, EA, IR and TG. The results show that they all bear the PtS topology with(42.84)(42.84) for the vertex symbols of the planar and tetrahedral nodes, in which the BPTC ligand is considered as a square-planar 4-connected linker, and every binuclear SBU connected to the four BPTC ligands is simplified into tetrahedral 4-connected nodes. Because the three coordination sites of one metal center of SBU are occupied by the coordinated solvent molecules, complex 1 exhibits low stability. After substituting 2,2′-bipy or 1,10-phen for two coordinated solvent molecules, complexes 2 and 3 display evidently higher structure stability. The magnetism property of complex 2 is also discussed in detail.Three 3D manganese-organic frameworks, Mn2（BPTC）（DMF）2（H2O）·DMF·3H2O（1）, Mn2（BPTC）（bipy）（DMF）·DMF·H2O（2）, and Mn2（BPTC）（phen）（DMF）·EtOH（3）, have been solvothermally synthesized using 3,3′,5,5′-biphenyltetracarboxylic acid（H4BPTC）. All complexes are characterized by PXRD, EA, IR and TG. The results show that they all bear the PtS topology with（42.84）（42.84） for the vertex symbols of the planar and tetrahedral nodes, in which the BPTC ligand is considered as a square-planar 4-connected linker, and every binuclear SBU connected to the four BPTC ligands is simplified into tetrahedral 4-connected nodes. Because the three coordination sites of one metal center of SBU are occupied by the coordinated solvent molecules, complex 1 exhibits low stability. After substituting 2,2′-bipy or 1,10-phen for two coordinated solvent molecules, complexes 2 and 3 display evidently higher structure stability. The magnetism property of complex 2 is also discussed in detail.

关 键 词：metal-organic frameworks MANGANESE PtS topology solvothermal synthesis MAGNETISM 

分 类 号：O627.7[理学—有机化学]