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. The complex of anhydrous samarium benzoate was synthesized by hydrothermal method. The complex was characterized by elemental analysis, IR and X-ray powder diffraction. The complex was of a monoclinic crystal structure. The crystal structure was characterized by TC, DTA, IR, In the nitrogen atmosphere, the thermal decomposition takes place in two steps: the first step is to decompose samarium in the form of monosodium bicarbonate and organic compounds, and the resulting organic compounds are more complex with the main components of Benzoic acid, benzophenone, 9,10-anthraquinone and 1,3-diphenylisobenzofuran, etc. The second step is to further decompose the monobasic dicarbonate into samarium oxide and carbon dioxide.