Surface Reaction of Methyl Mercaptan (CH₃SH) with Hydrogen Atoms on Amorphous Solid Water

Abstract Methyl mercaptan (CH 3 SH) is one of the S-bearing organic compounds found in interstellar medium (ISM). In this study, we investigated surface reactions solid CH SH with H atoms on amorphous water using experimental and computational methods to examine their physicochemical behavior ISM. Consequently, primary product was discovered be 4 . As studies show that dominant reaction pathway + → 2 S, observed would result from addition relatively minor routes, abstraction processes –CH –SH functional groups SH, giving rise S radicals, are confirmed. Although these radicals may form again by atoms, loss ice chemical desorption minor.