Four Coordination Polymers Assembled with a New Biscarboxyl-functionalized Schiff Base Ligand  

作　　者：KANG Dawei XIE Jingjing LIU Yingying MA Jianfang 

机构地区：[1]Key Laboratory of Polyoxometalate Science, Department of Chemistry, Northeast Normal University, Changchun 130024, P. R. China [2]Inner Mongolia Key Lab of Chemistry of Natural Products and Synthesis of Functional Molecules College of Chemistry and Chemical Engineering, lnner Mongolia University for the Nationalities, Tongliao 028000, P. R. China

出　　处：《Chemical Research in Chinese Universities》2018年第5期839-843,共5页高等学校化学研究（英文版）

摘　　要：Based on a new biscarboxyl-functionalized Schiff base ligand 1,2-cyclohexanediamino-N,N＇-bis[3- methoxyl-5-（p-carboxyl-phenylazo）] salicylidene（H4L）, four polymers, [（CH3）：NH2]2.[Mn3（L）2（H2O）4]·2DMF（CP1）, [Fe2（L）（H2O）（DMF）]（CP2）, [（CH3）2NG2].[Cu（HL）]·H2O（CP3） and [Ni2（L）（teta）]·2DMF·H2O（CP4）, have been synthesized（teta=5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane）. In CPI, both of the internal [N202] pocket and the external carboxylate groups of L＊- anion are ligated by Mn2＋ ions, and the structure displays a layer. In CP2, the Fe^2＋ cations are linked by L4- anions to form a binuclear double chain. CP3 displays a [Cu2（I-IL）2] dimer. In CP4, the Ni^2＋ ions are connected by L4- anions to form a chain. The structures are further linked by hydrogen bonds to form 2D or 3D supramolecular architectures, respectively. CP1 exhibits adsorption ability to three organic dyes.Based on a new biscarboxyl-functionalized Schiff base ligand 1,2-cyclohexanediamino-N,N＇-bis[3- methoxyl-5-（p-carboxyl-phenylazo）] salicylidene（H4L）, four polymers, [（CH3）：NH2]2.[Mn3（L）2（H2O）4]·2DMF（CP1）, [Fe2（L）（H2O）（DMF）]（CP2）, [（CH3）2NG2].[Cu（HL）]·H2O（CP3） and [Ni2（L）（teta）]·2DMF·H2O（CP4）, have been synthesized（teta=5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane）. In CPI, both of the internal [N202] pocket and the external carboxylate groups of L＊- anion are ligated by Mn2＋ ions, and the structure displays a layer. In CP2, the Fe^2＋ cations are linked by L4- anions to form a binuclear double chain. CP3 displays a [Cu2（I-IL）2] dimer. In CP4, the Ni^2＋ ions are connected by L4- anions to form a chain. The structures are further linked by hydrogen bonds to form 2D or 3D supramolecular architectures, respectively. CP1 exhibits adsorption ability to three organic dyes.

关 键 词：Coordination polymer Schiffbase Carboxylic acid Dye adsorption 

分 类 号：O625.632[理学—有机化学] TE357.46[理学—化学]