Theoretical and Experimental Chemistry

, Volume 23, Issue 1, pp 10–19 | Cite as

Energy structures and electronic-transition wavelengths for trinuclear polymethine dyes

  • G. G. Dyadyusha
  • M. N. Ushomirskii
Article

Abstract

A study has been made on the energy structures and long-wave electronic transitions for linear trinuclear polymethine dyes by the method of additive generating functions. The necessary and sufficient conditions have been established for the occurrence of local levels related to the central nucleus. It is found that the bisvinylene shift is dependent on the structure of the central nucleus in this class of dyes. The relationship fits the available measurements, and it is predicted that there is a positive bridge effect, namely an increase in the bisvinylene shift in trinuclear dyes by comparison with binuclear ones.

Keywords

Generate Function Local Level Electronic Transition Additive Generate Energy Structure 

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Copyright information

© Plenum Publishing Corporation 1987

Authors and Affiliations

  • G. G. Dyadyusha
    • 1
    • 2
  • M. N. Ushomirskii
    • 1
    • 2
  1. 1.Institute of Organic ChemistryAcademy of Sciences of the Ukrainian SSRKiev
  2. 2.State Photographic Chemistry Research InstituteMoscow

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