Intersystem crossing and internal conversion from the lowest charge-transfer singlet excited state of the (2,9-dimethyl-1,10-phenanthroline)copper(I) cation

Abstract

Sensitized P-type delayed fluorescence is employed to determine the energy of the lowest charge-transfer triplet state and the singlet–triplet intersystem crossing yield in (2,9-dimethyl-1,10-phenanthroline)-copper(I); internal conversion to the ground state is the dominant decay mode of the lowest excited singlet state of this chelate.