Triplet 1-nitronaphthalene and competitive energy and electron transfer reactions with trans-stilbene

T. Fournier, G. D. Scholes, I. R. Gould, S. M. Tavender, D. Phillips, A. W. Parker

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A time resolved resonance Raman (TR3) study of 1-nitronaphthalene (1NN) first triplet excited state in various solvents is combined with ab initio calculations to determine the nature and the geometry of this state in environments of different polarity. A transient absorption and TR3 study of the reactions of triplet 1NN with trans-stilbene (tS) in solution in both non-polar and polar solvents is reported. In polar solution, 31NN acts as an electron acceptor whereas in non-polar solution only energy transfer to tS is observed. Moreover, at high concentrations of tS, the radical cation tS+ reacts with ground-state tS to form a dimer radical cation (tS2)+.. Differences between the Raman spectra of the monomeric and the dimeric radical cations are reported in the 1500-1650 cm-1 region. The switch from energy to electron transfer when going from non-polar to polar solutions is discussed in terms of the Marcus-Hush theory of electron transfer.

Original languageEnglish (US)
Pages (from-to)397-401
Number of pages5
JournalLaser Chemistry
Volume19
Issue number1-4
DOIs
StatePublished - Jan 1 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Biochemistry
  • Spectroscopy

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