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Thermal decomposition of the pyridinium salt of 1,3-bis(trimethylsilyl)-2,4-dimercapto-2,4-dithioxo-1,3-diaza-2λ5, 4λ5-diphosphetidine

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Abstract

It was found that the first step of thermal decomposition of the pyridinium salt of 1,3-bis(trimethylsilyl)-2, 4-dimercapto-2,4-dithioxo-1,3-diaza-2λ5,4λ5-diphosphetidine (I) most probably involves breakdown to the acid form HS(S)P(NHSiMe3)2P(S)SH (II). The latter is very unstable and decomposes further, the end-product being a polymer (PNS)x. In this work, the mechanism of this process is investigated.

Zusammenfassung

Man fand, daß der erste Schritt der thermischen Zersetzung des Pyridiniumsalzes von 1,3-Bis(trimethylsilyl)-2,4-dimercapto-2,4-dithioxo-1,3-diaza-2λ5,4λ5-diphosphetidin (I) sehr wahrscheinlich einen Abbau zur Säureform HS(S)P(NHSiMe3)2P(S)SH (II) beinhaltet. Letztere ist sehr unbeständig und zersetzt sich, wobei als Endprodukt ein (PNS)x-Polymer entsteht. In vorliegendem Manuskript wird der Mechanismus dieses Prozesses näher untersucht.

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Authors and Affiliations

  1. Department of Inorganic Chemistry, Faculty of Science, Masaryk University, Brno, Czechoslovakia

    J. Príhoda & J. Meindl

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  1. J. Príhoda
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  2. J. Meindl
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Príhoda, J., Meindl, J. Thermal decomposition of the pyridinium salt of 1,3-bis(trimethylsilyl)-2,4-dimercapto-2,4-dithioxo-1,3-diaza-2λ5, 4λ5-diphosphetidine. Journal of Thermal Analysis 36, 2505–2510 (1990). https://doi.org/10.1007/BF01913647

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  • DOI: https://doi.org/10.1007/BF01913647

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