亚硝酸根桥联双核铜(Ⅱ)配合物的合成与磁性  

A Novel Bicopper(Ⅱ) Chain Complex Containing NO_2^- as Bridging Ligand: Synthesis and Magnetism

作　　者：傅明[1] 马书林[1] 毕燕芳[1] 陈学伟[1] 张龙泽[1] 

机构地区：[1]天津商学院制药工程系,天津300134

出　　处：《天津商学院学报》2004年第6期4-6,共3页Journal of Tianjin University of Commerce

摘　　要：以亚硝酸根为桥联配体,端接1,10 邻菲啉(1,10 phen),合成的配合物[Cu2(L)4(NO2)2](ClO4)2·2C2H5OH通过采用元素分析、摩尔电导、红外光谱以及电子光谱等手段,推测此配合物具有亚硝酸根桥联双核铜(II)结构。配合物的变温磁化率(4.9～299K),其数值用最小二乘法和从自旋Hamiltonian算符(H^=-2J(S^1·S^2),S1=S2=1/2)导出的磁方程拟合,求得交换积分为J=-0.38cm-1,结果表明双核配合物中金属离子间存在弱的反铁磁自旋交换作用。A novel copper(Ⅱ) binuclear chain complex has been obtained, namely [Cu_2(L)_4(NO_2)_2](ClO_4)_2·2C_2H_5OH, where L represents 1, 10-phenanthroline (phen). Meanwhile, the IR, electronic spectra and the temperature-dependent magnetic susceptibilities of the complex was analyzed in the range of 4.9-299 K. Experimental data of magnetic susceptibilities is successfully fit to theoretical value based on the spin Hamiltonian operator, (H)^=-2J((S)^_1·(S)^_2), S_1=S_2=1/2, giving the magnetic exchange parameters of J=-0.38 cm^(-1). The results show a weak antiferromagnetic exchange interaction between Cu(Ⅱ) ions in the complex studied.

关 键 词：亚硝酸根桥 反铁磁交换作用 双核铜(Ⅱ)配合物 

分 类 号：O641.4[理学—物理化学]