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Thermal decomposition of some organotellurium compounds based on di(cyclohexylmethyl) telluride

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Abstract

The thermal behavior of some new organotellurium compounds, based on di(cyclohexylmethyl) telluride [i.e., (C6H11CH2)2Te(R)X: R, X = I, I (1); Br, Br (2); CH3, I (3); C6H5CH2, Br (4); C6H5, BPh4 (5); CH3, BPh4 (6)] studied by thermogravimetric analysis. The organic moieties of compounds 1 and 2 were completely vaporized at 212 and 258 °C, respectively, leading to the deposition tellurium metal. Compounds 3 and 4 decomposed in two stages, losing RX in the first stage and depositing tellurium metal with formation of volatile 1,2-dicyclohexylethane in the second stage. Mass spectra of compounds 1, 2, 3 and 4 indicate the formation of 1,2-dicyclohexylethane and the association of compounds 2 and 3 in the gas phase. Oxoborinic acid (HBO2) is the residual product for the thermal decomposition of compounds 5 and 6 at 228 and 250 °C, respectively. No B2Te3 was formed during the thermolysis of these two compounds. Mechanisms for the decomposition of all compounds were proposed and discussed.

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Acknowledgements

The authors thank Department of Chemistry, College of Science, University of Basrah, Basrah for financial support. Thanks are due to Dr. Widad S. Hanosh, Department of Chemistry, College of Science, University of Basrah, for his assistant and helpful discussion.

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Authors and Affiliations

  1. Department of Chemistry, College of Science, University of Basrah, Basrah, Iraq

    Ali Z. Al-Rubaie, Alaa K. Al-Derawi & Anwar T. Abd Al-Wahed

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  1. Ali Z. Al-Rubaie
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  2. Alaa K. Al-Derawi
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  3. Anwar T. Abd Al-Wahed
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Correspondence to Ali Z. Al-Rubaie.

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Al-Rubaie, A.Z., Al-Derawi, A.K. & Abd Al-Wahed, A.T. Thermal decomposition of some organotellurium compounds based on di(cyclohexylmethyl) telluride. J Therm Anal Calorim 122, 699–703 (2015). https://doi.org/10.1007/s10973-015-4794-7

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