Low-energy resonance states upon electron capture by five-membered heterocycles and cyclopentadiene |
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Authors: | M V Muftakhov V A Mazunov V I Khvostenko |
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Institution: | (1) Physics Department, Bashkir Science Center, Urals Branch, Academy of Sciences of the USSR, Ufa |
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Abstract: | New resonance states were discovered for the negative molecular ions of thiophene and selenophene and a series of resonances was found for various heterocyclic compounds in the region 3.0–3.6 eV. The low-energy resonances at 1.65–2.3 eV are formed by a resonance mechanism of a form of the molecular ground state, while an electronically excited Feschbach resonance is responsible for the series of resonance states at 3.0–3.6 eV. The mother state for the latter resonance states is the first triplet state of these molecules. The first triplet state of selenophene is at 3.6±0.15 eV.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 925–927, April, 1990. |
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