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Specific features of resonance electron capture mass spectra of ecdysteroid molecules

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Abstract

Specificity of the dissociative attachment of low-energy electrons to ecdysteroid molecules (viz., 20-hydroxyecdysone 2,3:20,22-diacetonide, 20-hydroxyecdysone 20,22-acetonide, and poststerone 2-acetate) was found, which is manifested as the formation of long-lived pseudo-molecular negative ions that appeared due to the elimination of the H2 and H2O molecules. These rearrangements are resulted from the formation of the system of conjugated double bonds in the ecdysteroid skeleton, stabilizing the lowest vacant molecular orbital.

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Authors and Affiliations

  1. Ufa Scientific Center of the Russian Academy of Sciences, Institute of Physics of Molecules and Crystals, 151 prosp. Oktyabrya, 450075, Ufa, Russian Federation

    R. V. Khatymov, M. V. Muftakhov & V. A. Mazunov

  2. Academy of Sciences of the Republic of Bashkortostan and Ufa Scientific Center of the Russian Academy of Sciences, Institute of Petrochemistry and Catalysis, 141 prosp. Oktyabrya, 450075, Ufa, Russian Federation

    D. V. Nedopekin, I. V. Galyautdinov & V. N. Odinokov

Authors
  1. R. V. Khatymov
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  2. M. V. Muftakhov
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  3. V. A. Mazunov
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  4. D. V. Nedopekin
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  5. I. V. Galyautdinov
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  6. V. N. Odinokov
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Khatymov, R.V., Muftakhov, M.V., Mazunov, V.A. et al. Specific features of resonance electron capture mass spectra of ecdysteroid molecules. Russian Chemical Bulletin 51, 306–310 (2002). https://doi.org/10.1023/A:1015411928216

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  • DOI: https://doi.org/10.1023/A:1015411928216

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