Abstract
On the basis of differences in the energy gaps between the molecular orbitals of the π type of biphenyl, 2,2′-dithienyl, 2-phenyl(thienyl)pyrrole, 2-phenylselenophene (photoelectronic spectroscopy), and their cation radicals (nanosecond laser spectroscopy) it was shown that ionization causes transition to a more planar molecular conformation.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1213–1216, September, 1989.
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Turchaninov, V.K., Petrushenko, K.B., Ermikov, A.F. et al. Electronic absorption spectra of cation radicals as a source of information regarding their conformations. Chem Heterocycl Compd 25, 1015–1018 (1989). https://doi.org/10.1007/BF00487299
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DOI: https://doi.org/10.1007/BF00487299