Chemiresistive metal-stabilized thiyl radical films as highly selective ethylene sensors

A highly selective chemiresistive ethylene sensor based on reversible and selective ligand-centered substrate binding to a metal-stabilized thiyl radical has been developed. The solid-state device efficiently differentiates between ethylene and other alkene analytes. The sensor is prepared by simple dropcast deposition of the complex as a film across a microgap gold electrode.