杂环息夫碱及其金属配合物的合成与表征

SYNTHESIS AND CHARACTERIZATION OF THE HETEROCYCLIC SCHIFF BASES AND THEIR METAL COMPLEXES

本文报道了通过水杨醛、香草醛分别与2-氨基-5-偶氮苯吡啶缩合而成新的双齿(N,O或N,N′)杂环息夫碱。将这两种息夫碱作为配体分别与过渡金属盐作用合成了两个系列10种杂环息夫碱配合物M(L_Ⅰ)_2,M(L_Ⅱ)_2Cl_2[其中L_Ⅰ=2-(2′-羟基)苯甲亚胺-5-偶氮苯吡啶;L_Ⅱ=2-(4′-羟基-3’-甲氧基)苯甲亚胺-5-偶氮苯吡啶],并利用元素分析、电导、熔点、磁化率法测定,红外光谱、紫外-可见光谱、热分析等手段进行了表征。基于以上研究推测出配合物可能的空间结构。

Two new schiff bases were synthesized by the condensation of equimolar quantities ofsalicyladehyde or vanillin and 2- amine- 5- phenylazo-pyridine. Metal complexes of the type ML_Ⅱ andML_Ⅱ Cl_2 where M = Cu(Ⅱ), Co(Ⅱ), Ni(Ⅱ), Mn(Ⅱ), Zn(Ⅱ), and L = different newly synthesized monobasicschiff bases were prepared in absolate ethanolic medium and characterized by element analysis,conductance measurements, infrared spectra, electronic spectra, magnetic moments and thermal anaysisstudies. On the basis of the electronic spectra and magnetic moments stadies of the complexes. theirstrutrue are proposed.