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

作者：Kang Dawei; Xie Jingjing; Liu Yingying^*; Ma Jianfang^*

来源：Chemical Research in Chinese Universities, 2018, 34(5): 839-843.

DOI：10.1007/s40242-018-8030-4

• Coordination polymer
• Schiff base
• Carboxylic acid
• Dye adsorption

Based on a new biscarboxyl-functionalized Schiff base ligand 1,2 -cyclohexanediamino-N,N'-bis[3methoxyl-5-(p-carboxyl-phenylazo)] salicylidene(H4L), four polymers, [(CH3)(2)NH2](2)center dot[Mn-3(L)(2)(H2O)(4)]center dot 2DMF(CP1), [Fe-2(L)(H2O)(DMF)](CP2), [(CH3)(2)NH2]center dot[Cu(HL)]center dot H2O(CP3) and [Ni-2(L)(teta)]center dot 2DMF center dot H2O(CP4), have been synthesized(teta=5,5,7,12,12,14-hexamethy1-1,4,8,11-tetraazacyclotetradecane). In CP1, both of the internal [N2O2] pocket and the external carboxylate groups of L4- anion are ligated by Mn2+ ions, and the structure displays a layer. In CP2, the Fe2+ cations are linked by L4- anions to form a binuclear double chain. CP3 displays a [Cu-2(HL)(2)] dimer. In CP4, the Ni2+ 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.

• 出版日期2018-10
• 单位东北师范大学; 内蒙古民族大学