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Temperature Dependence of Excited Singlet S1-State Deactivation in Corrole Free Bases

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Journal of Applied Spectroscopy Aims and scope

NH-tautomerization in the lowest excited singlet S1-state of 5,10-mesityl-15-(2,6-dichloropyrimidinyl)corrole free base was studied in solution at 278–318 K and shown to be the dominant deactivation channel for electronic excitation energy of its short-wavelength tautomer T2. NH-tautomerization was found to cause significant changes in the deactivation quantum yields of electronic excitation energy of this tautomer as a function of temperature. About 90% of the electronic excitation energy of corrole molecules accumulated in the singlet S1-state of long-wavelength tautomer T1 after phototautomerization if the temperature was increased to 318 K.

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Authors and Affiliations

  1. Art, Sciences, and Technology University in Lebanon, PO Box 14-695, Beirut, Lebanon

    Y. H. Ajeeb

  2. Belarusian State Technological University, 13a Sverdlov Str., Minsk, 220006, Belarus

    Y. H. Ajeeb, T. B. Karlovich & M. M. Kruk

  3. Belarusian State Academy of Communications, Minsk, 220114, Belarus

    L. L. Gladkov

  4. Institute for Materials Research (IMO-IMOMEC), Hasselt University, B-3590, Diepenbeek, Belgium

    W. Maes

Authors
  1. Y. H. Ajeeb
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  2. T. B. Karlovich
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  3. L. L. Gladkov
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  4. W. Maes
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  5. M. M. Kruk
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Corresponding authors

Correspondence to L. L. Gladkov or M. M. Kruk.

Additional information

Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 86, No. 3, pp. 353–359, May–June, 2019.

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Ajeeb, Y.H., Karlovich, T.B., Gladkov, L.L. et al. Temperature Dependence of Excited Singlet S1-State Deactivation in Corrole Free Bases. J Appl Spectrosc 86, 389–395 (2019). https://doi.org/10.1007/s10812-019-00831-3

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  • DOI: https://doi.org/10.1007/s10812-019-00831-3

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