Abstract
Ethyl isocyanate reacts at 320 K with single hydroxyl groups on a trimethylsilylated tin(IV) oxide surface to form a urethane. The adsorption is reversed by evacuation at higher temperatures. Adjacent hydroxyl groups and water on tin(IV) oxide react to give 1,3-diethylurea which is adsorbed on the oxide as a perturbed “carboxylate-type complex”. The 1,3-diethylurea complex decomposes to ammonia and an acetate on evacuation at elevated temperatures. The stability of the surface urethanes to evacuation increases in the series SnO2 < MgO < SiO2. Phenyl isocyanate also forms a urea and a urethane, the urethane desorbing by evacuation at 320 K. The highly oxidising nature of the tin(IV) oxide surface prevented study of reactions at elevated temperatures.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
