Thermal decomposition of donor-stabilized phosphinoborane PH2BH2NMe3: a tensimetry study

Alina V. Butlak, Igor V. Kazakov, Andreas Stauber, Oliver Hegen, Manfred Scheer, Anna V. Pomogaeva, Alexey Y. Timoshkin

Research output

Abstract

The thermal decomposition of PH2BH2·NMe3 (1) in closed system was studied by static tensimetry with membrane null‐manometer. Compound 1 is unstable already at room temperature and partially decomposes with the release of gaseous trimethylamine and nonvolatile polymeric material. Storage of 1 at 311 K for 53 days results in evolution of small amounts of hydrogen and phosphine. At temperatures up to 329 K, PH3 evolution and BH3NMe3 adduct formation is observed after 3 days, and above 387 K, considerable amount of hydrogen gas is released. The data obtained indicate that the pyrolysis of 1 in the closed system may result in the enrichment of the condensed phase with boron due to phosphine loss.
Original languageEnglish
Pages (from-to)3885-3891
JournalEuropean Journal of Inorganic Chemistry
Volume2019
Issue number35
Early online date27 Aug 2019
DOIs
Publication statusPublished - 22 Sep 2019

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phosphine
Hydrogen
Pyrolysis
Boron
Gases
Membranes
Temperature
Polymers

Cite this

Butlak, Alina V. ; Kazakov, Igor V. ; Stauber, Andreas ; Hegen, Oliver ; Scheer, Manfred ; Pomogaeva, Anna V. ; Timoshkin, Alexey Y. . / Thermal decomposition of donor-stabilized phosphinoborane PH2BH2NMe3: a tensimetry study. In: European Journal of Inorganic Chemistry. 2019 ; Vol. 2019, No. 35. pp. 3885-3891.
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abstract = "The thermal decomposition of PH2BH2·NMe3 (1) in closed system was studied by static tensimetry with membrane null‐manometer. Compound 1 is unstable already at room temperature and partially decomposes with the release of gaseous trimethylamine and nonvolatile polymeric material. Storage of 1 at 311 K for 53 days results in evolution of small amounts of hydrogen and phosphine. At temperatures up to 329 K, PH3 evolution and BH3NMe3 adduct formation is observed after 3 days, and above 387 K, considerable amount of hydrogen gas is released. The data obtained indicate that the pyrolysis of 1 in the closed system may result in the enrichment of the condensed phase with boron due to phosphine loss.",
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Thermal decomposition of donor-stabilized phosphinoborane PH2BH2NMe3: a tensimetry study. / Butlak, Alina V. ; Kazakov, Igor V. ; Stauber, Andreas; Hegen, Oliver; Scheer, Manfred; Pomogaeva, Anna V.; Timoshkin, Alexey Y. .

In: European Journal of Inorganic Chemistry, Vol. 2019, No. 35, 22.09.2019, p. 3885-3891.

Research output

TY - JOUR

T1 - Thermal decomposition of donor-stabilized phosphinoborane PH2BH2NMe3: a tensimetry study

AU - Butlak, Alina V.

AU - Kazakov, Igor V.

AU - Stauber, Andreas

AU - Hegen, Oliver

AU - Scheer, Manfred

AU - Pomogaeva, Anna V.

AU - Timoshkin, Alexey Y.

PY - 2019/9/22

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AB - The thermal decomposition of PH2BH2·NMe3 (1) in closed system was studied by static tensimetry with membrane null‐manometer. Compound 1 is unstable already at room temperature and partially decomposes with the release of gaseous trimethylamine and nonvolatile polymeric material. Storage of 1 at 311 K for 53 days results in evolution of small amounts of hydrogen and phosphine. At temperatures up to 329 K, PH3 evolution and BH3NMe3 adduct formation is observed after 3 days, and above 387 K, considerable amount of hydrogen gas is released. The data obtained indicate that the pyrolysis of 1 in the closed system may result in the enrichment of the condensed phase with boron due to phosphine loss.

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