Synthesis, structure, luminescence and magnetic property of camphorate coordination polymers containing 5,6-dimethylbenzimidazole auxiliary ligand

被引:12
作者
Chen, Na [1 ]
Yang, Peng [1 ]
He, Xiang [1 ,3 ]
Shao, Min [2 ]
Li, Ming-Xing [1 ]
机构
[1] Shanghai Univ, Dept Chem, Coll Sci, Shanghai 200444, Peoples R China
[2] Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China
[3] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
基金
上海市自然科学基金; 中国国家自然科学基金;
关键词
Coordination polymer; Camphoric acid; 5,6-Dimethylbenzimidazole; Crystal structure; Luminescence; Magnetic property; METAL-ORGANIC FRAMEWORKS; NETWORKS; DESIGN;
D O I
10.1016/j.ica.2013.05.010
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Hydrothermal reactions of D-(+)-camphoric acid (D-H(2)cam) and 5,6-dimethylbenzimidazole (dmbi) with metal salts afforded three coordination polymers, namely [Cd-2(D-cam)(2)(dmbi)(4)](n) (1), [Zn-2(D-cam)(2)(dmbi)(2)](n) (2) and [(Co(D-cam)(1/2)(L-cam)(1/2)(dmbi)](n) (3), which were characterized by elemental analysis, IR, PXRD, CD, thermogravimetry and X-ray structural analysis. Complexes 1 and 2 are homochiral coordination polymers. 1 is a 1D left-handed helical chain coordination polymer constructed from tri- and tetra-dentate camphorate. 2 exhibits a 20 polymeric network assembled by tri-dentate camphorate, which belongs to 3-connected (4.8(2)) topology. 3 is a 2D achiral coordination polymer assembled by left- and right-handed 1D Co-camphorate helical chains, It is rarely observed that D-cam ligand changes to L-cam under hydrothermal condition. Three complexes are all thermally stable up to 316-425 degrees C. 1 and 2 show violet luminescence originating from ligand-centered emission. 3 exhibits an antiferromagnetic interaction in Co-2(II) dimer with J = -4.34 cm(-1). (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:43 / 50
页数:8
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