Magnetic field effect on the exciplex luminescence as a probe for estimating the hyperfine interaction in a radical ion pair system

Abstract

Magnetic field effect on 9-cyanophenanthrene —trans anethole exciplex gives theB 1/2 value, a measure of ‘average’ hyperfine interaction present in the system. This has been compared with the theoretically computed values of hyperfine coupling constants present in the component radical ions using the INDO-UHF method.