Thermochemistry of Heteroatomic Compounds. Enthalpy of Dissolution and Vaporization of Selected Trimethylsilyl Di- and Tetrathiophosphates
- Авторы: Ovchinnikov V.1, Mal’tseva S.1, Kremleva N.1
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Учреждения:
- A.N. Tupolev Kazan National Research Technical University (KAI)
- Выпуск: Том 89, № 10 (2019)
- Страницы: 2163-2164
- Раздел: Letters to the Editor
- URL: https://journals.rcsi.science/1070-3632/article/view/223142
- DOI: https://doi.org/10.1134/S1070363219100293
- ID: 223142
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Аннотация
Enthalpy of vaporization (ΔvapH°) of trimethylsilyl esters of dithio- and tetratiophosphoric acids (RX)2P(S)SSiMe3 (X = O, S) have been determined from the experimentally determined enthalpies of their dissolution (ΔdissH°) in n-hexane at 296–298 K and the values of molar refraction (MRD) with correction a for the branching of the carbon substituent according to the equation ΔvapH° = ΔdH°(n-hexane) + 4.39 + 1.05(MRD − α). The obtained vaporization values can be used to calculate the heats of formation of similar, thermally unstable, compounds for experimental calorimetry.
Об авторах
V. Ovchinnikov
A.N. Tupolev Kazan National Research Technical University (KAI)
Автор, ответственный за переписку.
Email: chem_vvo@mail.ru
Россия, ul. K. Marksa 10, Kazan, 420111
S. Mal’tseva
A.N. Tupolev Kazan National Research Technical University (KAI)
Email: chem_vvo@mail.ru
Россия, ul. K. Marksa 10, Kazan, 420111
N. Kremleva
A.N. Tupolev Kazan National Research Technical University (KAI)
Email: chem_vvo@mail.ru
Россия, ul. K. Marksa 10, Kazan, 420111