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The study of benzimidazoles

8. The relation between their UV and photoelectron spectra

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Abstract

The nature of the first two long-wave bands in the UV spectra of 2-substituted benzimidazoles has been analyzed on the basis of photoelectron spectra (PES). Three basic types of spectroscopic situations are typical of these compounds: 1) a change in the sequence of the occupied MO of the ground state does not influence the order of the excited energy levels; 2) when the π-levels are in the same order, inversion of the excited states occurs; 3) reversal of the occupied π-MO of the ground state causes the inversion of the excited states.

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Authors and Affiliations

  1. Irkutsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 ul. Favorskogo, 664033, Irkutsk, Russian Federation

    V. K. Turchaninov, E. A. Motvienko, L. I. Larina, A. M. Shulunova, L. V. Baikalova & V. A. Lopyrev

Authors
  1. V. K. Turchaninov
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  2. E. A. Motvienko
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  3. L. I. Larina
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  4. A. M. Shulunova
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  5. L. V. Baikalova
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  6. V. A. Lopyrev
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Additional information

For communication 7 see Ref. 1.

Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 1761–1766, October, 1993.

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Turchaninov, V.K., Motvienko, E.A., Larina, L.I. et al. The study of benzimidazoles. Russ Chem Bull 42, 1683–1689 (1993). https://doi.org/10.1007/BF00697040

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  • DOI: https://doi.org/10.1007/BF00697040

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