Iodine chemistry in the +1 oxidation state. II. A Raman and uv-visible spectroscopic study of the disproportionation of hypoiodite in basic solutions'

Abstract

The kinetics of disproportionation of elemental iodine to iodide and iodate ions has been studied in basic aqueous media using Raman and uv-visible spectroscopy. The TO stretching vibrations for IO and 120H were observed at 430 ± 2 and 560 ± 2 cm , respectively. The totally symmetric stretching vibration for '02 was observed at 685 ± 2 cm'. The Raman results indicate that 120H is a linear molecule with a stronger 1-0 bond than I0. The rate expression at 25°C in 1 mol dm3 NaOH was found to be.