Intercalation of Mercaptocarboxylic Acid into Layered Double Hydroxide Accompanied with Oxidation of Mercapto Group

The intercalation of mercaptocarboxylic acids into magnesium–aluminum layered double hydroxide (LDH) was accompanied with the oxidation of mercapto groups in aqueous solution as evidenced by 13C solid-state NMR and Raman scattering measurements. The layers of LDH were bridged by two carboxylic groups of the corresponding disulfide, which was formed by the oxidation of mercaptocarboxylic acids.