Howard Zimmerman , University of Wisconsin, Chemistry Department, University of Wisconsin, 1101 University Ave, Madison, WI 53706, Madison, Wisconsin, US, 53706 | Teijiro Ichimura | Peter Wan | Andrei Kutateladze | Axel Griesbeck

The Mechanistic Organic Photochemistry symposium will cover basic organic photochemistry. This will include (a) New organic photochemical reactions, (b) Detailed reaction mechanisms in photochemistry, (c) Theoretical
treatments of organic photochemical reactions, (d) Factors determining the course of organic photochemical reactions, (e) Some limited applications of unusual reactions to biochemical processes but emphasizing the photochemistry involved. Thus, the presentation of new photochemical reactions by itself is of real interest. Beyond this, we know that the course of photochemical reactions may be understood as coming from the excited state resulting from ultraviolet excitation. The Franck-Condon excited state initially formed is generally the lowest singlet (i.e. S1). Relaxation normally occurs rapidly to the preferred S1 geometry. The excited singlet may react with changing geometry towards product often with eventual conversion to ground state via a conical intersection. Alternatively, S1 may undergo intersystem crossing to give the corresponding triplet, generally T1. Spin-orbit coupling enhances this process. The symposium will thus cover experimentally observed reactions of interest as well as the overall and theoretical aspects of the mechanisms.