Abstract
Aqueous solution spectra of the lactate ion and lactate esters have been examined and the effects of chelation, vibration coupling and hydrogen bonding have been studied. The in-plane deformation of the OH group appeared at 1275 cm −1 in the free ion, but was displaced to near 1390 cm −1 in the chelated ion. From their effects upon the lactate ion vibrations, a series of metal ions could be arranged in order of the stability constants of the metal-lactate complexes.
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