摘要
以六水氯化钐、邻香草醛缩甘氨酸席夫碱、8-羟基喹啉为原料,合成了邻香草醛缩甘氨酸席夫碱8-羟基喹啉稀土钐的三元配合物,通过元素分析、红外光谱、紫外光谱、热分析对配合物的结构进行了表征.实验表明,席夫碱脱质子以羧酸根的O原子与稀土Sm3+配位,而8-羟基喹啉脱质子后以酚羟基O和环上的N双齿配位,形成五元螯环.差热分析结果表明配合物热稳定性较好,不含结晶水,在300℃与550℃时,依次完全失去两种配体,最终分解产物为Sm2O3.初步推断该配合物化学式为Sm(C10H1 0NO4)2C9H6NO.
A ternary complex was synthesized by samarium chloride hexahydrate, o- vanillin glycine schiff base and 8- hydroxyquinoline, and characterized by elemental analysis, IR, UV and thermal analysis. The experimental results showed that schiff base coordinated with Sm3＋ by carboxylate group after the carboxyl deprotonating, while 8-hydroxyquinoline bidentated with Sm3＋ by O and N atoms after deprotonating, and forming a five-membered chelate ring. DTA curve indicated that crystalwater was not exists, and the complex had a great thermal stability. Two ligands were step completely lost when the temperature was 300 ℃ and 550℃, and the final product was Sm2 03. Finally, we concluded that the molecularformula of the complex wasSm（C10H10NO4）2C9H6NO.
出处
《邵阳学院学报（自然科学版）》
2015年第2期39-44,共6页
Journal of Shaoyang University：Natural Science Edition
基金
湖南省科技计划项目(2012TP4021-6)
湖南省普通高校"十二五"专业综合改革试点项目(湘教通[2012]266号)
湖南省普通高校实践教学建设项目(湘教通[2013]295号)
关键词
钐
席夫碱
邻香草醛
8-羟基喹啉
配合物
samarium
schiff base
2-hydroxy-3-ethoxypheylmethylidene
8-hydroxyquinoline
complex
