Protonation and solvent-interaction effects on the first hyperpolarizability of 2-amino-5-nitropyridine

N. Horiuchi, T. Kodaira, A. Watanabe, M. Matsuda

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10 Citations (Scopus)


The protonation effect on the first hyperpolarizability β of 2-amino-5-nitropyridine (2A5NP) is examined by Hyper-Rayleigh Scattering (HRS). Using the HRS technique, the β value of the protonated 2A5NP in acetone is determined to be 22.5 × 10-30 esu, small in comparison to the value for the neutral form. The measurement is repeated in 1,4-dioxane and methanol solutions to examine the influence of the solvent on β. β depends on the reaction field, which is written as a function of the dielectric constant of the solvent, the variation of β in methanol is inconsistent. From this, it is deduced that the first hyperpolarizability of 2A5NP decreases more significantly by hydrogen bond solvent interactions than by protonation.

Original languageEnglish
Pages (from-to)92-96
Number of pages5
JournalChemical Physics Letters
Issue number1-2
Publication statusPublished - 1997 Sep 12

ASJC Scopus subject areas

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


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