摘要
用水热法合成了无水苯甲酸钐配合物,经元素分析、IR和X射线粉末衍射表征了该配合物,系层状结构,属单斜晶系.用TC、DTA、IR、色谱-质谱联用仪研究了它的热分解机理.在氮气氛下,热分解分两步进行:第一步分解生成钐的二碳酸一氧盐和有机化合物.生成的有机化合物成分比较复杂,主要成分为苯甲酸、二苯甲酮、9,10-蒽醌和1,3-二苯基异苯并呋喃等.第二步二碳酸一氧盐进一步分解生成氧化钐和二氧化碳.
Samarium benzoate was synthesized through hydrothermal reaction. The complex was characterized by elemental analysis, IR and X - ray powder diffraction. It is monoclinic and has layered structure. The mechanism of thermal decomposition for samarium benzoate was studied by using TG, DTA, IR, and gas chromatography - mass spectroscopy. The thermal decomposition of samarium benzoate in nitrogen proceeded in two stages: first it decomposed to form Sm2O(CO3)2 and organic compounds, then Sm2O(CO3)2 decomposed further to form samarium oxide and carbon dioxide. The organic compounds obtained from the first step of the thermal decomposition reaction were mainly benzoic acid, benzophenone, 9, 10 - anthraquinone, 1,3-diphenylisobenzofuran and so on.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
2000年第2期144-148,共5页
Acta Chimica Sinica
基金
国家自然科学基金(29671025)资助课题
关键词
苯甲酸盐
水热合成
热分解
苯甲酸钐配合物
samarium, benzoate, hydrothermal synthesis, thermal decomposition
