Studies of fluorescent dyes: Part 1. An investigation of the electronic spectral properties of substituted coumarins

Robert M. Christie, Chih Hung Lui

Research output: Contribution to journalArticle

78 Citations (Scopus)

Abstract

Coumarin derivatives represent one of the most important chemical classes of organic fluorescent materials. The results of PPP molecular orbital calculations, after refinement by parameter optimisation, were found to provide a good account of the electronic absorption spectra for a series of substituted coumarins. The electronic structures of several of the derivatives and the nature of the electronic excitation process are discussed in terms of the calculated p-electron charge densities. © 1999 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)85-93
Number of pages9
JournalDyes and Pigments
Volume42
Issue number1
Publication statusPublished - 30 Apr 1999

Keywords

  • Coumarin
  • Electronic spectra
  • Fluorescence
  • PPP-MO calculations

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