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Explorations of conical intersections and their ramifications for chemistry through the Jahn-Teller effect
Brian E Applegate1, Timothy A Barckholtz, Terry A Miller
1Department of Chemistry, University of North Carolina, Chapel Hill, NC 27599, USA. beapple@unc.edu
Abstract:
Much recent progress has been made theoretically and computationally towards understanding the importance of conical intersections for chemical reactions. Nonetheless, experimental characterization of conical intersections has proven extremely difficult with one striking exception: the Jahn-Teller conical intersection. This article overviews the fundamental similarity of a variety of conical intersections and demonstrates how the spectroscopy of Jahn-Teller active molecules can be used to characterize them. Specific results are reviewed for four representative Jahn-Teller active molecules, C5H5, C6H6+, Ag3 and CH3O.