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Synthesis and thermal decomposition kinetics of the complexes [Sm( o ‐NBA) 3 bipy] 2 ·2H 2 O and [Sm( o ‐BrBA) 3 bipy] 2 · 2H 2 O
Author(s) -
Zhang Hai Yan,
Zhang Jian Jun,
Ren Ning,
Bai Ji Hai,
Wang Shu Ping,
Wang Rui Fen
Publication year - 2008
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.20341
Subject(s) - chemistry , thermal decomposition , kinetics , decomposition , chemical process of decomposition , kinetic energy , differential thermal analysis , molar ratio , analytical chemistry (journal) , nuclear chemistry , inorganic chemistry , organic chemistry , catalysis , physics , quantum mechanics , diffraction , optics
Two new complexes [Sm( o ‐NBA) 3 bipy] 2 ·2H 2 O ( 1 ) and [Sm( o ‐BrBA) 3 bipy] 2 ·2H 2 O ( 2 ) (where o ‐NBA is o ‐nitrobenzoic acid, o ‐BrBA is o ‐bromobenzoic acid, and bipy is 2,2′‐bipyridine) were prepared and characterized by elemental analysis, IR, UV, and molar conductance, respectively. The thermal decomposition behaviors of the two complexes were investigated by means of TG–DTG and IR techniques. The thermal decomposition kinetics was studied by using advanced double equal‐double steps method, nonlinear integral isoconversional method, and nonlinear differential isoconversional method. The kinetic parameters of the second‐step process for the two complexes were obtained, respectively. © 2008 Wiley Periodicals, Inc. Int J Chem Kinet 40: 607–616, 2008