Processes of dissociative electron capture by 20-hydroxyecdysone molecules |
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| Authors: | M V Muftakhov R V Khatymov V A Mazunov V N Odinokov I V Galyautdinov |
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| Institution: | (1) Institute of Physics of Molecules and Crystals, Ufa Research Center of the Russian Academy of Sciences, 151 prosp. Oktyabrya, 450075 Ufa, Russian Federation;(2) Institute of Petrochemistry and Catalysis, Bashkortostan Republic Academy of Sciences and Ufa Research Center of the Russian Academy of Sciences, 141 prosp. Oktyabrya, 450075 Ufa, Russian Federation |
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| Abstract: | The peculiarities of dissociative electron capture by 20-hydroxyecdysone molecules with the formation of fragment negative
ions were studied. In the region of high electron energies (5–10 eV), processes of skeleton bond rupture are accompanied by
the elimination of H2O and H2 molecules. In the region of thermal energies of electrons (≈0 eV), the mass spectrum is formed mainly by the M−nH2O].− (n=1–3) and M−H2−nH2O].− (n=0−3) ions that are generated exclusively by the rearrangement.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 4, pp. 709–712, April, 2000. |
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| Keywords: | ecdysteroids resonant electron capture mass spectrometry negative ions rearrangement processes |
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