Prof. T.P. Softley
Michaelmas Term 3rd Year
Electronic transitions of polyatomic molecules. Beer-Lambert
law, selection rules and absorption strength, vibronic transitions,
radiative lifetime, Franck-Condon Principle.
Fates of excited states; Jablonski Diagram, Fluorescence and
phosphorescence, Vibrational relaxation, Intersystem crossing
and internal conversion, Intramolecular Vibrational Redistribution,
Dissociation/Predissociation, Lifetimes of excited states.
Fluorescence/phosphorescence quenching, Stern-Volmer plot.
Application of Fermi's Golden Rule, energy-gap law, El-Sayed
rules, isotope effects.
Electronic energy transfer, long-range and short-range mechanisms.
Exciplex formation, Triplet sensitization and delayed fluorescence.
Chemical reactivity of electronically excited molecules; acidity,
redox, orbital character etc.
Modern experimental methods for studying the dynamics and
control of photochemical processes in gas and solution phases.
Synopsis of Lectures in more
detail and Tutorial Problems and Exercises
Powerpoint Presentation of Lectures