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在合成稀土与乙酰甘氨酸、咪唑混配固态配合物 [RE(AGly) 2 (Im) 2 (H2 O) 3 〗(ClO4 ) 3 ·H2 O(RE =La、Pr、Nd、Sm、Eu、Gd ;AGly 乙酰甘氨酸 ;Im 咪唑 )的基础上 ,又合成了双核稀土配合物 [Er2 (AGly) 4Im(H2 O) 5〗(ClO4 ) 2 ·3H2 O。通过化学分析 ,元素分析确定了配合物的组成 ;并利用IR、UV、X 射线粉末衍射、1HNMR及摩尔电导率测定等对配合物进行了表征 ,结合TG DTG对配合物的热分解机理研究 ,比较了两类配合物的配位情况 ;用AMI半经验法对配体进行了结构优化 ,计算了电荷分布 ,并推测了配合物可能的结构。生物活性试验结果表明 ,该类配合物对棉花黄萎病菌有明显的抑菌效果 ,而对小麦赤霉菌几乎无作用。
In the synthesis of rare earth and acetyl glycine, imidazole mixed with the solid complex [RE (AGly) 2 (Im) 2 (H2O) 3] (ClO4) 3 · H2 O (RE = La, Pr, Nd, Sm, Eu, Gd (AGO) 4Im (H 2 O) 5 (ClO 4) 2 · 3H 2 O on the basis of AGLY acetylglycine and Im imidazole. The composition of the complex was confirmed by chemical analysis and elemental analysis. The complex was characterized by IR, UV, X-ray powder diffraction, 1HNMR and molar conductivity. Combined with TG DTG, the thermal decomposition mechanism of the complex was studied. The coordination between the two complexes was compared. The structure of the ligand was optimized by the AMI semi-empirical method. The charge distribution was calculated and the possible structure of the complex was estimated. The results of biological activity test showed that these compounds have obvious antibacterial activity against Verticillium dahliae, but little effect on the Gibberella zeae.