氨噻肟酸稀土配合物的合成、抗氧化性及抗菌活性的研究

合成了１２种稀土氨噻肟酸（ＨＬ）固体配合物，其通式为ＲＥＬ３（ＲＥ＝Ｌａ，Ｃａ，Ｐｒ，Ｎｄ，Ｓｍ，Ｅｕ，Ｇｄ，Ｔｂ，Ｅｒ、Ｔｍ，Ｙｂ，Ｙ）。利用元素分析、红外光谱、核磁共振氢谱、摩尔电导、热分析等测试手段对配合物进行了表征，研究了ＮｄＬ３、ＥｒＬ３配合物在ＤＭＳＯ溶液中电子吸收光谱，计算了电子云伸效应参数β，共价参数　和键合参数ｂ＾１／２，讨论了配合物的共价成键情况，并对其抗氧化及抗菌活性做了研究

Synthesis, Antioxidative Activity and Antibacterial Activity of Complexes of Rare Earth with Syn-2-(2'-Aminothiazolyl-)-2-Methoxyimino Acetic Acid

New twelve complexes of rare earth with syn-2- (2'-aminothiazolyl-) -2-methoxyimino acetic acid (HL) have been prepared and characterized by elemental analyses, IR, molar conductance, TG-DTA and 1H NMR spectra. These complexes have the general formula REL3 (RE = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Er, Tm, Yb, Y). IR spectra indicate that the bidentate coordination mode of carboxylate ions to rare earth ion in REL3 compounds. The electronic spectra of Nd3 and Er3 have been studied and the spectral parameters have been calculated and discussed. The antioxidative activity and antibacterial activity have been studied.