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Syntheses, Structures, Fluorescence and Heterogeneous Catalysis of Coordination Polymers with 4-Benzoimidazol- 1-yl-methyl Benzoic Acid and 2,2-Dipyridine |
XIA Li;ZHU Yu;WANG Yan-Mei;LIU Pan;XIE Ji-Min#br# |
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China |
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Abstract Two coordination polymers called [Ni(L)2]n (1) and [Ni(2,2΄-bpy)22(H2O)]n (2) (HL = 4-benzoimidazol-1-yl-methyl benzoic acid, 2,2΄-bpy = 2,2΄-dipyridine) were synthesized by solvothermal reaction simultaneously and characterized by elemental analyses, thermogravimetric analysis, X-ray powder diffraction, IR spectroscopy and single-crystal X-ray diffraction analysis. Complex 1 crystallizes in monoclinic system, space group P21/c with a = 14.673(3), b = 10.773(2), c = 16.566(3) Å, V = 2559.2(8) Å3, Z = 4 and F(000) = 1160. 2 also crystallizes in monoclinic system, space group C2/c with a = 15.404(3), b = 12.652(3), c = 6.5362(13) Å, V = 1246.2(5) Å3, Z = 4 and F(000) = 712. The bridging L ligand connects the NiII cations into a 2D network in complex 1, while 2 shows a 1D structure formed through the two O atoms of SO42- ions connecting the molecule. The catalytic properties indicate that complex 1 shows good catalytic activities for the cyanosilylation of 4-chlorobenzaldehyde. In addition, fluorescence property of complex 1 which quenches the excitation intensity in solid state was investigated at room temperature.
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Received: 23 July 2015
Published: 11 April 2016
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Fund: This project was supported by the National Natural Science Foundation of China (21171075/B010303, 21103073/B030201, 21306067/B060903), and Innovation & Entrepreneurship Traning Program of China (201410299054Y) |
Corresponding Authors:
xiejm391@sohu.com
E-mail: xiejm391@sohu.com
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