The Quenching of the Cadmium Resonance Radiation at 326.1 nm by Ammonia and the Emission from the Complex between Excited Cadmium Atoms and Ammonia in the Presence of Argon

Abstract

Abstract The pressure dependences of the emission intensities at 326.1 and 432 nm in the cadmium-photosensitized reaction of ammonia have been measured. In order to interpret the nonlinear Stern-Volmer plots for the quenching of the 326.1 nm resonance line, the following reactions have to be taken into account in the reaction scheme: Cd*+NH3\ightleftharpoonsCdNH3*V, CdNH3*V+M→CdNH3*+M. The pressure dependence of the emission from the CdNH3* complex (at 432 nm) was also well explained in terms of a reaction scheme involving the above reactions.