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Syntheses, Structures and Properties of Four Transition Metal Complexes with 2,4-Oxybis(benzoic acid) and N-Donor Ligands
Author NameAffiliationE-mail
TANG Long Yan'an University Key Laboratory of New Energy & New Functional Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China ydtangl@126.com 
YIN Si-Yu Yan'an University Key Laboratory of New Energy & New Functional Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China  
WANG Ying-Lu Yan'an University Key Laboratory of New Energy & New Functional Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China  
SHI De-Qian Yan'an University Key Laboratory of New Energy & New Functional Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China  
HOU Xiang-Yang Yan'an University Key Laboratory of New Energy & New Functional Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China  
WANG Xiao Yan'an University Key Laboratory of New Energy & New Functional Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China  
WANG Ji-Jiang Yan'an University Key Laboratory of New Energy & New Functional Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China yadxwjj@126.com 
Abstract: Four transition metal coordination polymers {[Mn(2,4-Hoba)2(bipy)(H2O)2]·2H2O}n (1),[Mn(2,4-oba)(phen)]n (2),[Co(2,4-oba)(bimyb)0.5]n (3) and[Ni(2,4-oba)(bimyb)0.5]n (4) (2,4-H2oba=2,4-oxybis(benzoic acid), bipy=4,4'-bipyridine, phen=1,10-phenanthroline, bimyb=1,4-bis(imidazole-1-ylmethyl) benzene) were synthesized by hydrothermal reactions and characterized by single-crystal X-ray diffraction, thermogravimetric analyses, IR spectroscopy and elemental analysis. Complex 1 is a 1D chain structure, which is extended to a 2D supramolecular architecture by O-H…O hydrogen bonding. Complex 2 shows a 1D wavy chain structure, which is expanded to a 2D wavelike network through aromatic π-π stacking interactions. Complexes 3 and 4 are 2D layer structures produced by ligands bridging binuclear paddle-wheel units. The magnetic properties of 2~4 have also been investigated, and the exchange conpling constants were -0.79, -8.97 and -11.42 cm-1, respectively. According to the crystal structures, the magnetic coupling behavior of complexes 2~4 were studied by using hybrid DFT-BS method, and the result reveals that the calculated exchange coupling constants (J) are in good agreement with the experimental data.
Keywords: coordination polymers  crystal structure  magnetic behavior  density functional theory
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TANG Long,YIN Si-Yu,WANG Ying-Lu,SHI De-Qian,HOU Xiang-Yang,WANG Xiao,WANG Ji-Jiang.Syntheses, Structures and Properties of Four Transition Metal Complexes with 2,4-Oxybis(benzoic acid) and N-Donor Ligands[J].Chinese Journal of Inorganic Chemistry,2019,35(10):1728-1736.
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Chinese Journal of Inorganic Chemistry