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Conical Intersections and the Mechanism of Singlet Photoreactions
Author(s) -
Klessinger Martin
Publication year - 1995
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199505491
Subject(s) - conical intersection , conical surface , funnel , singlet state , intersection (aeronautics) , symmetry (geometry) , photochemistry , thermal , mechanism (biology) , physics , chemistry , molecular physics , chemical physics , materials science , atomic physics , geometry , quantum mechanics , thermodynamics , mathematics , excited state , engineering , organic chemistry , aerospace engineering
In contrast to the previously accepted theoretical model , the reaction funnel of a nonadiabatic photoreaction, which has similar significance as the transition state of a thermal reaction, is a real conical intersection (CI) at geometries of low symmetry. This is shown schematically on the right.