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Adiabatic Photoreactions of Organic Molecules
Author(s) -
Turro Nicholas J.,
McVey Jeffrey,
Ramamurthy V.,
Lechtken Peter
Publication year - 1979
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.197905721
Subject(s) - adiabatic process , excited state , molecule , fragmentation (computing) , covalent bond , organic molecules , chemical physics , proton , potential energy surface , chemistry , jump , reaction coordinate , atomic physics , photochemistry , molecular physics , computational chemistry , physics , thermodynamics , quantum mechanics , organic chemistry , computer science , operating system
Abstract An adiabatic photoreaction is a chemical process that occurs entirely on a single excited electronic energy surface. As a rule, most photoreactions of organic molecules start on an excited electronic surface but “jump” to a lower surface somewhere along the reaction coordinate. There are, however, exceptions to this general rule. For example, photoreactions involving small structural changes and minor alterations in covalent bonding ( e.g. , proton transfer and complex formation) are commonly found to occur adiabatically. The purpose of this review is to survey examples of more complicated adiabatic photoreactions such as fragmentation, electrocyclic rearrangements, and geometrical isomerizations. The concepts employed are presented in an introductory discussion.