Electronic properties of polymethine systems. Part 4: Electronic structure of polymethine chain

  • Kachkovski A
  • Dekhtyar M
  • 2


    Mendeley users who have this article in their library.
  • 11


    Citations of this article.


On the basis of the topological concept of electron donor ability, the electronic structure is considered for two main classes of symmetric linear polymethine systems, polymethine dyes and hetarylpolyenes. Quantum-chemical evidence and analytical relations are presented which account for substantial distinctions between polymethines and polyenes in the π-electronic density distribution over atoms and bonds, both in the ground and excited states. Existence conditions for so-called ideal polymethinic and polyenic states are expressed in terms of electron donor abilities defined for end-groups, and for a polymethine system as a whole.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • A. D. Kachkovski

  • M. L. Dekhtyar

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free