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

doi:10.1007/s40242-018-8030-4

Chemical Research in Chinese Universities ›› 2018, Vol. 34 ›› Issue (5): 839-843.doi: 10.1007/s40242-018-8030-4

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

KANG Dawei^1,2, XIE Jingjing¹, LIU Yingying¹, MA Jianfang¹

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, Inner Mongolia University for the Nationalities, Tongliao 028000, P. R. China

Received:2018-01-25 Revised:2018-07-03 Online:2018-10-01 Published:2018-09-21
Contact: LIU Yingying,Email:liuyy147@nenu.edu.cn;MA Jianfang,Email:majf247@nenu.edu.cn E-mail:liuyy147@nenu.edu.cn;majf247@nenu.edu.cn
Supported by:
Supported by the Open Funds for the Key Lab of Polyoxometalate Science of the Ministry of Education of China.

Abstract

Abstract: 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)₂NH₂]₂·[Mn₃(L)₂(H₂O)₄]·2DMF(CP1),[Fe₂(L)(H₂O)(DMF)](CP2),[(CH₃)₂NH₂]·[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 CP1, both of the internal[N₂O₂] pocket and the external carboxylate groups of L^4- anion are ligated by Mn²⁺ ions, and the structure displays a layer. In CP2, the Fe²⁺ cations are linked by L^4- anions to form a binuclear double chain. CP3 displays a[Cu₂(HL)₂] dimer. In CP4, the Ni²⁺ ions are connected by L^4- 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.

Key words: Coordination polymer, Schiff base, Carboxylic acid, Dye adsorption<

KANG Dawei, XIE Jingjing, LIU Yingying, MA Jianfang. Four Coordination Polymers Assembled with a New Biscarboxyl-functionalized Schiff Base Ligand[J]. Chemical Research in Chinese Universities, 2018, 34(5): 839-843.

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

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