N,N′-双(2-吡啶甲基)二硫代草酰胺根桥联的三核铜(Ⅱ)配合物的合成及表征 |
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作者姓名: | 崔建中 程鹏 廖代正 姜宗慧 阎世平 王耕霖 |
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作者单位: | 南开大学化学系,天津 300071,南开大学化学系,天津 300071,南开大学化学系,天津 300071,南开大学化学系,天津 300071,南开大学化学系,天津 300071,南开大学化学系,天津 300071 |
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基金项目: | 中国科学院资助项目,Tianjin Natural Sci. Found,59772020;29631040,983604611,, |
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摘 要: | Two new trinuclear copper(Ⅱ) complexes bridged with N,N′-Bis(2-pyridylmethyl)-Dithiooxamidate, [Cu3L2](ClO4)2(1) and [Cu3L2](NO3)2(2) (H2L=N,N′-Bis(2-pyridylmethyl)-Dithiooxamide), have been synthesized, and characterized by elemental analyses, IR, UV-visible spectra, conductance and EPR spectra. The variable temperature magnetic susceptibility for complex (1) has been measured in the range of 1.5~298K. Experimental data of magnetic susceptibility are successfully fit to theoretical value based on the spin Hamiltonian operator: H=-2J(S1S2+S2S3)-2J′S1S3, S1=S2=S3=1/2, giving the magnetic exchange parameters of 2J=-170 cm-1 and 2J′=-7.2 cm-1. This result indicates the presence of a strong antiferromagnetic spin exchange interaction between the Cu(Ⅱ) ions.
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关 键 词: | 二硫代草酰胺桥联配体 三核铜(Ⅱ)配合物 磁性 |
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