On the nature of excited electronic states in cyanine dyes: implications for visual pigment spectra

Uri Dinur, Barry Honig, Klaus Schulten

Research output: Contribution to journalArticle


CNDO/S CI calculations are carried out on polyenes and on cyanine dyes. In contrast to polyenes, doubly excited configurations have a strong effect on the first optically allowed excited state in cyanines. Protonated Schiff bases of retinal are closely related to cyanine dyes, with important consequences for models of visual pigment spectra and photochemistry.

Original languageEnglish (US)
Pages (from-to)493-497
Number of pages5
JournalChemical Physics Letters
Issue number3
StatePublished - Jun 15 1980


ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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