Thermochemical determination of structure of negative ions on the basis of data from resonance electron capture mass spectrometry. 1. Heterocyclic analogs of cyclopentadiene |
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Authors: | V. A. Mazunov M. V. Muftakhov A. A. Krivoruchko V. V. Takhistov |
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Affiliation: | (1) Physics Branch, Bashkir Scientific Center, Ural Branch of the Academy of Sciences of the USSR, Ufa |
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Abstract: | Appearance energies have been measured for negative ions formed in the gas phase upon dissociative capture of electrons by molecules of cyclopentadiene, pyrrole, selenophene, thiophene, furan, and furan derivatives. From an analysis of the enthalpies of formation of the fragmentation products, it has been established that electron capture by molecules of C4H4X (X=O, S, Se, NH, CH2) leads to the formation of ions with cyclic and acyclic structures.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 590–592, March, 1991. |
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