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用2-甲氧基-5-氯-1,3-苯二甲醛与含有不同取代基团X的邻氨基酚缩合,合成了一系列双Schiff碱L-X(X=OMe,diMe,Me,t-Bu,H,Cl,NO_2),它们与乙酸铜(Ⅱ)作用生成了一系列的双核配合物Cu_2L-X(OEt).用红外、紫外、磁天平、顺磁共振等手段对配合物进行了表征,并通过量化计算(CNDO/2法)探讨了配合物的成键性质。研究结果表明,该类配合物是一个较大的共轭体系,配合物中Cu(Ⅱ).Cu(Ⅱ)之间有较强的反铁磁性交换作用,其共轭程度和交换作用强弱皆随X基团的不同而呈现某种变化规律。
A series of double Schiff bases LX (X = OMe, diMe, Me, t-BuLi) were synthesized by condensation of 2-methoxy- Bu, H, Cl and NO_2, which formed a series of Cu_2L-X (OEt) complexes with copper (Ⅱ) acetate.The complexes were characterized by IR, UV, Characterization, and through the quantitative calculation (CNDO / 2 method) to explore the bonding properties of the complex. The results show that this kind of complex is a large conjugate system. The complexes have strong antiferromagnetic exchange between Cu (Ⅱ) and Cu (Ⅱ), and the degree of conjugation and exchange are strong All with the different X groups showed some changes.