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

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【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；

【Author】 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)

【机构】 Department of Chemistry, Nankai University, Tianjin 300071, China； State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210097, China,Department of Chemistry, Nankai University, Tianjin 300071, China； State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210097, China,Department of Physics, Nankai University, Tianjin 300071, China,Department of Physics, Nankai University, Tianjin 300071, China,Central Laboratory, Nankai University, Tianjin 300071, China,Central Laboratory, Nankai University, Tianjin 300071, China,Department of Chemistry, Nanjing University, Nanjing 210097, China；

【摘要】 <正> 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.更多还原

【Abstract】 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.更多还原

【关键词】 binuclear copper(II) complexes； exogenous bridge； tautomer isomerization； magnetic interaction； molecular mechanics.；
【Key words】 binuclear copper(II) complexes； exogenous bridge； tautomer isomerization； magnetic interaction； molecular mechanics.；

【基金】 Project supported by the National Natural Science Foundation of China

【文献出处】 Science in China,Ser.B ,中国科学B辑(英文版) , 编辑部邮箱 ,1996年02期

【分类号】O614
【被引频次】1
【下载频次】39

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