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Russian Journal of Organic Chemistry

, Volume 55, Issue 1, pp 93–100 | Cite as

Unsymmetrical 2,6-Di-tert-butyl-Substituted Pyrylo-4-squaraines

  • V. V. KurdyukovEmail author
  • I. V. Kurdyukova
Article

Abstract

Triethylammonium salt of pyran semisquaraine reacted with N-methyl-substituted heterocyclic salts to give unsymmetrical di-tert-butyl-substituted squarylium dyes. The effect of the terminal heterocycles on the spectral properties of the obtained dyes was studied, and the electronic structure of squaraines and electronic transitions therein were analyzed by quantum chemical methods.

Keywords

pyrylo-4-squaraines semisquaraines electronic asymmetry electronic transitions 

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  1. 1.Institute of Organic ChemistryNational Academy of Sciences of UkraineKievUkraine

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