Hydrothermal synthesis and thermal decomposition  mechanism of samarium benzoate

Abstract

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 Sm~2O(CO~3)~2 and organic compounds, then Sm~2O(CO~3)~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, 13-diphenylisobenzofuran and so on.

Key words: BENZENECARBOXYLIC ACID P, SAMARIUM COMPLEX, HYDROTHERMAL METHOD, THERMAL DECOMPOSITION, REACTION MECHANISM, ELEMENTAL ANALYSIS, INFRARED SPECTROPHOTOMETRY, X-RAY DIFFRACTION ANALYSIS, THERMOGRAVIMETRY, DIFFERENTIAL THERMAL ANALYSIS

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Zhang Keli;Yuan Jibing;Yuan Liangjie;Sun Jutang. Hydrothermal synthesis and thermal decomposition mechanism of samarium benzoate[J]. Acta Chimica Sinica, 2000, 58(2): 144-148.

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苯甲酸钐的水热合成和热分解反应机理

Hydrothermal synthesis and thermal decomposition mechanism of samarium benzoate

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