ENERGY TRANSFER IN SOME MIXED MOLECULAR CRYSTALS

Abstract

Low temperature $(2^{0} K)$, high resolution $(0.5 cm^{-1})$ electronic spectra of some mixed and neat molecular crystals-involving naphthalene, durene and hexamethylbenzene - will be discussed with the emphasis being placed on energy transfer processes which have been observed in these systems, including both inter- and intramolecular intersystem crossing and internal conversion. The nature and importance of guest-host and host-host interactions and their role in energy transfer will also be discussed.