摘要:本论文利用常规溶液合成法,以L-赖氨酸为主配体,2-甲氧基苯甲酸和苯甲酸为辅助配体,进一步加入硝酸钆,向体系中引入稀土离子Gd3+离子,调变溶液pH值至近中性,成功合成了三种羧酸型稀土衍生物,并利用红外光谱 (IR) 对产物进行了测试表征。通过红外光谱分析可以确定羧基参与了配位;通过离子沉淀法推测稀土离子Gd3+也参与了配位,因此可以推断这三种化合物即为目标产物。关键词:配合物;合成;稀土发光材料;苯甲酸;2-甲氧基苯甲酸;L-赖氨酸7613
Synthesis and Characterization of Luminescent Materials Based on Carboxylic Rare Earth Derivatives
Abstract: In this paper, three rare earth coordination complexes based on the ligands 2-methoxy benzoic acid, L- lysine acid, benzoic acid and rare earth ion Gd3+ have been successful prepared through the conventional solution synthesis method. Then the as-synthesized complexes were characterized by infrared spectrometry (IR). According to the analysis of the IR spectra, it can be concluded that the carboxyl have been coordinated with the metal ions. In addition, the rare earth ions were also determined in coordination by using the precipitation method. Thus, it can be inferred that the two compounds are the target products.
Key words: Complexes; Synthesis; Rare earth luminescent materials; benzoic acid; 2-methoxy benzoic acid; L-lysine acid
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