Abstract
Products of interaction between alkylhydrazines and ethyl-, allyl-, and phenylisothiocyanates are studied using mass spectrometry in the modes of electron impact ionization and matrix-assisted laser desorption/ionization in combination with gas and liquid chromatography. Conditions for the chromatographic separation of reaction mixtures and mass spectrometric identification of target compounds in real-time and delayed modes are optimized. The physicochemical characteristics of the sorption of thiosemicarbazides are determined. The decomposition and fragmentation of their metastable protonated molecules are studied. Schemes are proposed for the formation of fragmented and characteristic thiosemicarbazide ions in different modes of ionization.
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ACKNOWLEDGMENTS
The work was performed on equipment at the Shared Resource Center of the Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences.
Funding
This work was performed as part of a State Task for the Frumkin Institute of Physical Chemistry and Electrochemistry. It was supported by the Russian Foundation for Basic Research, project no. 18-08-01224a.
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Translated by G. Levit
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Ul’yanov, A.V., Polunin, K.E., Polunina, I.A. et al. Studying Products of Hydrazine Interaction with Isothiocyanates by Means of Chromatography and Mass Spectrometry. Russ. J. Phys. Chem. 95, 1061–1068 (2021). https://doi.org/10.1134/S0036024421050290
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DOI: https://doi.org/10.1134/S0036024421050290