Pyrilocyanines. 37. Pyrilo-2-cyanines with perfluorophenyl substituents

Authors

  • А. И. Толмачев Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kiev 253094
  • Н. А. Деревянко Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kiev 253094
  • А. А. Ищенко Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kiev 253094
  • М. А. Kудинова Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kiev 253094
  • И. Ю. Каргaполова Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090
  • Н. А. Орлова Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090
  • Т. H. Герасимова Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090

Abstract

Symmetrical and nonsymmetrical pyrilo-2-cyanines have been synthesized containing the 6-perfluorophenyl-4-phenylpyrilium residue. As an example of these compounds we have analyzed the effect of chaging phenyl groups for perfluorophenyl in terms of the long wavelength electronic absorption spectra for the above types of dyes. It was found that this change leads to a decrease in the effective length and the electron donor ability of hetero residues containing these groups. The former effect gives rise to a hypsochromic shift of the absorption band and the second to a broadening of these bands associated with increased vibrational interactions in the molecules and their solvates.

How to Cite
Tolmachev, A. I.; Derevyanko, N. A.; Ishchenko, A. A.; Kudinova, M. A.; Kargapolova, I. Yu.; Orlova, N. A.; Gerasimova, T. N. Chem. Heterocycl. Compd. 1998, 34, 444. [Khim. Geterotsikl. Soedin. 1998, 34, 501.]

For this article in the English edition, see DOI https://doi.org/10.1007/BF02290884

Downloads

Published

1998-04-25

Issue

No. 4 (1998)

Section

Original Papers