Control of Exchange Interactions in Trinuclear Complexes Based on Orthogonal Magnetic Orbitals
作者:Birgit Weber、Jaroslava Obel、Lucia R. Lorenz、Wolfgang Bauer、Luca Carrella、Eva Rentschler
DOI:10.1002/ejic.200900847
日期:2009.12
and [Cu3L2][N(nBu)4]2·2DMF (2). Both complexes were characterised by using magnetic measurements and X-ray crystallography. Special attention was given to the spin-exchange coupling through the bridging phenylene ring. The principle of strict orthogonality of the magnetic orbitals can be applied to explain the results of the susceptibility measurements. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim
乙酸铜 (II) 与四齿席夫碱样配体 H4L (E,E)-[diethyl 2,2'-[4,5-dihydroxy-1,2-phenylenebis(iminomethylidyne)]bis(3) 的反应-oxobutanoate)}] 导致形成方形平面 N2O2 配位复合物 [H2CuL]。两当量的这种配合物与乙酰丙酮铜(II)或乙酰丙酮氧钒(IV)反应生成三核配合物 [V(O)Cu2L2][N(nBu)4]2·2MeOH (1) 和 [Cu3L2][N( nBu)4]2·2DMF (2)。通过使用磁测量和 X 射线晶体学表征这两种配合物。特别注意通过桥联亚苯基环的自旋交换耦合。磁轨道的严格正交性原理可用于解释磁化率测量的结果。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)