磺基水杨酸稀土配合物的合成与表征  

Synthesis and Characterization of Complexes of Sulfosalicylic Acid with Rare Earths

作　　者：李想[1] 胡应喜[1] 刘霞[1] 

机构地区：[1]北京石油化工学院化学工程学院,北京102617

出　　处：《化学与生物工程》2013年第9期44-47,共4页Chemistry & Bioengineering

摘　　要：以磺基水杨酸和氧化稀土为原料，用流变相反应法合成了6种磺基水杨酸稀土配合物，并通过元素分析、IR、TG／DTA对其结构进行了表征。结果表明，该配合物的组成为RE2（HSSA）3·nH2O，金属离子与配体的化学计量比为2：3；配体中羰基氧、邻位羟基氧与稀土金属离子配位；得到的配合物在120～630℃存在2个分解阶段：120～200℃为失去水的过程、370-630℃为热分解过程，最终分解产物为RE2O3。The six complexes of sulfosalieylie acid with rare earths were synthesized by rheologieal phase reaction method using RE2O3 and sulfosalieylie acid as raw materials. The composition and structure of the complexes were characterized by elemental analysis, IR and TG/DTA. The experimental results showed the composition of complex was RE2 （HSSA）3 · nH2O, and the complex ratio of rare earth metal ions to sulfosalicylic acid was 2 ： 3. Rare earth metal ions coordinated with oxygen atoms of -C=O and next --OH group. The complexes thermal decomposition process could be divided into two weightless stages during 120-630 ℃, of which 120-200℃ was water lost stage,and 370--630℃ was thermal decomposition stage. Finally, the complexes decomposed into RE2 O3.

关 键 词：磺基水杨酸稀土配合物 流变相反应法 合成与表征 

分 类 号：O614.33[理学—无机化学]