Abstract

The vibrational spectra of solid 4-methyl oxalocetate have been recorded. Infrared spectra were collected at ambient and liquid nitrogen temperatures; Raman spectra were collected at ambient temperature only. A tentative vibrational assignment of the solid is proposed based on a dimer structure composed of two enolic monomer units hydrogen bonded through the carboxylic acid group. 4-Methyl oxaloacetate was found to undergo keto—enol tautomerization in solution, and the solvent dependency of this equilibrium was demonstrated.

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