The use of the substituted imidazoline radical as a receptor for sulphur dioxide gas sensor

Computer simulation of different structures of adsorption complexes formed by gas adsorption on organic layers with various functional groups was carried out. On the basis of simulation results, we chose 2-(4′-dimethylaminophenyl)-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl as a substance possessing high selectivity toward SO2. Simulation results were confirmed experimentally in the studies of adsorption by means of ellipsometry and quartz microbalance.