Solid-Solid Synthesis, Characterization and Thermal Decomposition of Thiourea Complex of Antimony Trichloride

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The solid complex of antimony trichloride with thiourea was synthesized by solid-solid reaction or liquid state reaction of antimony trichloride and thiourea. The formula of solid complex is all SbCl3[CS(NH2)2]3. The crystal structure of the complex belongs to monoclinic system and the lattice parameters are: a = 1.2426 nm, b = 1.6396 nm, c = 1.9254 nm and β = 96.24° for solid-solid reaction, and a = 1.2343 nm, b = 1.6585 nm, c = 1.9252 nm and β = 96.46° for liquid state reaction, respectively. The infrared spectra reveal that antimony ion in the complex is coordinated only by the sulfur atom of CS(NH2)2. The possible pyrolysis reactions in the thermal decomposition process of the complex, the experimental and calculated percentage mass loss were also given.

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126-130

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July 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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