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Exogenous bridge and tautomer effects on magnetic interaction of binuclear copper(II) complexes of μ-phenolato Schiff bases

Exogenous bridge and tautomer effects on magnetic interaction of binuclear copper(II) complexes of μ-phenolato Schiff bases

作     者:程鹏 廖代正 阎世平 姜宗慧 王耕霖 王磊光 劳学军 姚心侃 王宏根 王国雄 CHENG Peng LIAO Daizheng YAN ShipingHANG Zonghui WANG Genglin(Department of Chemistry, Nankai University, Tianjin 300071, China; State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210097, China)WANG Leiguang LAO Xuejun(Department of Physics, Nankai University, Tianjin 300071, China)YAO Xinkan WANG Honggen(Central Laboratory, Nankai University, Tianjin 300071, China)and WANG Guoxiong(Department of Chemistry, Nanjing University, Nanjing 210097, China)

作者机构:Department of Chemistry Nankai University Tianjin 300071 China State Key Laboratory of Coordination Chemistry Nanjing University Nanjing 210097 ChinaDepartment of Chemistry Nankai University Tianjin 300071 China State Key Laboratory of Coordination Chemistry Nanjing University Nanjing 210097 ChinaDepartment of Physics Nankai University Tianjin 300071 ChinaDepartment of Physics Nankai University Tianjin 300071 ChinaCentral Laboratory Nankai University Tianjin 300071 ChinaCentral Laboratory Nankai University Tianjin 300071 ChinaDepartment of Chemistry Nanjing University Nanjing 210097 China 

出 版 物:《中国科学:化学英文版》 (SCIENCE CHINA Chemistry)

年 卷 期:1996年第2期

页      面:192-202

核心收录:

学科分类:0703[理学-化学类] 

基  金:Project supported by the National Natural Science Foundation of China 

主  题:binuclear copper(II) complexes exogenous bridge tautomer isomerization magnetic interaction molecular mechanics. 

摘      要: Four enol-form binuclear copper complexes with different exogenous bridges, [Cu2(L)(μ-Cl)] (1), [Cu(L)(μ-N3)]· DMF (2), [Cu2(L)(μ-OCH3)] (3) and [Cu2(L)(μ-C3H3N2)]· 1/2C2H5OH (4), where L is the trivalence anion of binucleating ligand 2,6-diformyl-4-methylphenol di(tenzoylhydrazone), have been synthesized and characterized. Crystal data for complex (3) are as follows: space group P1- , a=0.8294(1), 6=0.9333(3), c= 1.473 6(6) nm, α=79.51(3)°, β=80.93(2)°,γ=81.32(2)°, Z=1. The magnetic measurements indicated that the effect of exogenous bridging ligands on magnetic interaction is corresponding to that in spectrochemical series. The effect of enol- and keto-form tautomer on magnetic interaction was explained from the point of view of structural factors and electron effects by using molecular mechanks and quantum chemistry calculations.

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