Stark effects in gas-phase electronic spectra. Dipole moment of aniline in its excited S1 state

T. M. Korter, D. R. Borst, C. J. Butler, D. W. Pratt

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

Measurements of the Stark effect on the rotationally resolved S1←S0 fluorescence excitation spectrum of aniline are reported, providing quantitative information about the degree of charge transfer in the electronic transition. We find that μa(S1 = 2.801 ± 0.007 D, a value that is ∼150% larger than the ground state, μa(S0) = 1.129 ± 0.005 D. The enhanced value of the dipole moment in the S1 state is attributed to more efficient electron donation by the quasi-planar amino group to the aromatic ring.

Original languageEnglish (US)
Pages (from-to)96-99
Number of pages4
JournalJournal of the American Chemical Society
Volume123
Issue number1
DOIs
StatePublished - Jan 10 2001
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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