Synthesis,Structure and Magnetic Properties of a New Two-dimensional (4,4) Network Cobalt Coordination Polymer with Dicyanamide and Benzimidazole Ligands |
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| Authors: | Shouwu Wang Liyan Wang Baolong Li Yong Zhang |
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| Institution: | (1) School of Chemical Engineering, Huaihai Institute of Technology, Lianyungang, 222000, People’s Republic of China;(2) College of Chemistry and Chemical Engineering, Key Laboratory of Organic Synthesis of Jiangsu Province, Suzhou University, Suzhou, 215123, People’s Republic of China |
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| Abstract: | Abstract The new cobalt(II) coordination polymer Co(bim)2(dca)2]
n
(1), (bim = benzimidazole, dca = dicyanamide) was synthesized and characterized. X-ray diffraction analyses reveal that the
title complex crystallizes in the monoclinic space group P21/n with a = 9.168(5), b = 9.959(5), c = 9.850(5) ?, β = 105.360(11)o, Z = 2, and R
1 = 0.0308, wR
2 = 0.0728. The coordination geometry of cobalt atom is distorted octahedral, coordinated equatorially by four nitrogen atoms
from four dicyanamide ligands, and axially by two nitrogen atoms from two benzimidazole molecules. Each dca ligand links two
cobalt(II) atoms and 1 forms a two-dimensional (4,4) network. The spectroscopic and magnetic properties have also been investigated.
Graphical Abstract The new cobalt(II) coordination polymer Co(bim)2(dca)2]
n
(1), (bim = benzimidazole, dca = dicyanamide) was synthesized and characterized by X-ray diffraction analyses. The coordination
geometry of cobalt atom is distorted octahedral, coordinated equatorially by four nitrogen atoms from four dicyanamide ligands,
and axially by two nitrogen atoms from two benzoimidazole molecules. Each dca ligand links two cobalt(II) atoms and 1 forms a two-dimensional (4,4) network. The spectroscopic and magnetic properties have also been investigated.
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| Keywords: | Cobalt(II) complex Crystal structure Coordination polymer Magnetic properties Dicyanamide Benzimidazole |
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