Resonance Raman spectra of 2-(4′-hydroxyphenylazo)-benzoic acid

https://doi.org/10.1016/0584-8539(75)80157-7Get rights and content

Abstract

Resonance Raman spectra of 2-(4′-hydroxyphenylazo)-benzoic acid have been recorded for aqueous and ethanolic solutions. The change of pH of the aqueous solution gives four types of spectra corresponding to the stages of protonation and deprotonation processes. On addition of bovine serum albumin or cetyltrimethylammonium bromide to the neutral solution, the spectrum shows a little change which can be elucidated based on the shift of equilibrium between the azo- and the hydrazone-forms. The spectrum of the ethanolic solution shows a marked concentration dependence.

References (14)

  • J.H. Baxter

    Arch. Biochem. Biophys.

    (1964)
  • H. Terada

    Life Sci.

    (1972)
    H. Terada et al.

    Biochim. Biophys. Acta

    (1974)
  • K. Machida et al.

    Bull. Chem. Soc. Japan

    (1974)
  • A. Burawoy et al.

    J. Chem. Soc.

    (1952)
  • D.D. Rustein et al.

    J. Clin. Invest.

    (1953)
  • J.H. Baxter

    Proc. Soc. Exptl. Biol. Med.

    (1963)
  • I. Moriguchi et al.

    Chem. Pharm. Bull.

    (1970)
There are more references available in the full text version of this article.

Cited by (21)

  • Determination of structural, spectrometric and nonlinear optical features of 2-(4-hydroxyphenylazo)benzoic acid by experimental techniques and quantum chemical calculations

    2013, Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
    Citation Excerpt :

    In addition, binding by albumin causes an appearance of new band at 480 nm [37]. The visible absorption at 480 nm obtained from the resonance a Raman spectrum of HABA was also marked as an evidence of participation of the azo-hydrazone tautomerism [4]. A similar band was observed for solutions of HABA in organic solvents such as ethanol dimethylsulphoxide or dimethylformamide [37].

View all citing articles on Scopus
View full text