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合成了 3种新的双核铬 (Ⅲ )配合物 [Cr2 (CA) (ph - phen) 4](SO4 ) 2 (1) ,[Cr2 (CA) (en) 4](SO4 ) 2 (2 )和 [Cr2 (CA) (pn) 4](SO4 ) 2 (3) ;其中 ,CA代表氯冉酸根二价阴离子 ;ph - phen ,en和 pn分别代表 5 -苯基 -1,10 -邻菲罗啉 ,乙二胺和 1,3-丙二胺 .经元素分析、摩尔电导和室温磁矩的测量 ,以及红外光谱和紫外光谱等方法 ,已推定这些配合物具有氯冉酸根双核铬 (Ⅲ )结构 ,其中每个铬 (Ⅲ )离子处于八面体环境 .测定了配合物 (1)的变温磁化率 (77～ 30 0K) ,其数据与自旋哈密顿算符H^ =- 2JS^1·S^2 导出的磁方程拟合 ,求得交换积分J=- 3.15cm-1.表明配合物中 2个铬 (Ⅲ )离子之间存在弱的反铁磁性自旋交换作用 .
Three new complexes of Cr3 (CA) (ph - phen) 4] (SO4) 2 (1), [Cr2 (CA) 4] (SO4) 2 (2) (3), where CA stands for cholorotanate dianion; ph - phen, en and pn stand for 5 - phenyl - 1,10 - phenanthrene Ethylenediamine and 1,3-propanediamine.It has been postulated that these complexes have the specific properties of halotachronium binuclear chromium (Ⅲ), elemental analysis, molar conductance and magnetic moment measurements at room temperature, as well as IR and UV spectroscopy ) Structure, in which each chromium (III) ion is in octahedral environment.The magnetic susceptibility (77 ~ 30 0K) of complex (1) is measured and the data are compared with the spin Hamiltonian H ^ = - 2JS ^ 1 The magnetic equation derived from S ^ 2 was fitted and the exchange integral was found to be J = -3.15cm-1, indicating that there was a weak antiferromagnetic spin exchange between the two chromium (III) ions in the complex.