Kazuhiko Hanai, Satoshi Kawai, Akio Kuwae
1991
Citations
0
Influential Citations
12
Citations
Journal
Journal of Molecular Structure
Abstract
Abstract The IR, Raman and NMR spectra of phenylpyruvic acid and its sodium and lithium salts were recorded in aqueous solution. The spectral data indicate that the acid exists mostly in the hydrated keto form (gem-diol form) in acidic solution and that the sodium and lithium salt hydrates take predominantly the normal keto form in aqueous solution in contrast with those in the solid state. Also the solution of the acid and the salts contain a small amount of the enol form. A solvent isotope effect, i.e. the enol content differs between the H2O and D2O solutions of the sodium salt, was found.