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合成和表征了以氯冉酸根 (CA)为桥联体 ,分别端接 1,2 丙二胺 (ap)、2 二甲氨基乙胺 (Me2 en)和 3 二甲氨基丙胺(Me2 pn) 3种新的双核铬 (III)配合物 [Cr2 (CA)L4 ](SO4 ) 2 [L =ap ,Me2 en ,Me2 pn].基于元素分析、摩尔电导和室温磁化率的测定以及红外和电子光谱等手段 ,已推定这些配合物具有氯冉酸根桥联的双核铬 (III)结构 ,其中 ,每个铬 (III)离子均处于畸变的八面体配位环境 .测定并研究了配合物 [Cr2 (CA) (Me2 pn) 4](SO4 ) 2 的变温 (4 .2～ 30 0K)磁化率 ,求得交换积分J =-4.79cm-1.结果表明 ,双核配合物中铬 (III)离子间存在弱的反铁磁自旋超交换作用
In this paper, chiral acid radical (CA) as a bridge was synthesized and characterized. 1,2-dimethylaminopropylamine (Me2 en) and 3 dimethylaminopropylamine (Me2 pn) 3 The new dual dinuclear chromium (III) complex [Cr2 (CA) L4] (SO4) 2 [L = ap, Me2 en, Me2 pn] was determined by elemental analysis, the determination of molar conductance and magnetic susceptibility at room temperature and the infrared and electron spectra , These complexes have been presumed to be binuclear chromium (III) bridged by chlorambucil, in which each chromium (III) ion is in a distorted octahedral coordination environment. The complex [Cr2 The exchange integral J = -4.79cm-1 was obtained from the magnetic susceptibility of (CA) (Me2pn) 4] (SO4) 2 at temperatures varying from 4.2 to 30 0 K. The results show that the chromium (III) There is a weak antiferromagnetic spin-exchange effect