Matrix reactions of ozone and oxygen atoms with hydrogen iodide. HOI formation

Abstract

Oxygen atoms and ozone react with hydrogen iodide in dilute nitrogen and argon matrices at 8°K to produce new infrared absorptions at 3597, 1103, and 575 cm⁻¹ which are attributed to the HOI intermediate species hypoiodous acid. The observed oxygen‐18 and deuterium isotopic frequencies and associated band assignments identified isolated H–O and O–I stretching modes which defined the H–O–I structural arrangement. Partially enriched oxygen‐18 and deuterium isotopic experiments confirmed the fact that the product contains one oxygen and one hydrogen atom per molecule. The vibrational spectrum of HOI is analogous to those of the other hypohalous acids.