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（...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.展开更多
文摘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.
