Fluorescence lifetime of Nile Red as a probe for the hydrogen bonding strength with its microenvironment

Adrienn Cser, Krisztina Nagy, László Biczók

Research output: Contribution to journalArticle

113 Citations (Scopus)

Abstract

The fluorescence lifetime of Nile Red (NR) is not sensitive to dielectric solvent-solute interactions but markedly decreases with the increase of the hydrogen bond donating ability in alcohols because vibrations associated with hydrogen bonding are involved in the deactivation process. The negligible viscosity effect indicates that twisting of the diethylamino moiety of NR does not play significant role in the dissipation of the excitation energy.

Original languageEnglish
Pages (from-to)473-478
Number of pages6
JournalChemical Physics Letters
Volume360
Issue number5-6
DOIs
Publication statusPublished - Jul 17 2002

ASJC Scopus subject areas

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

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