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Mode‐Dependent Fano Resonances Observed in the Predissociation of Diazirine in the S 1 State
Author(s) -
Ahn DooSik,
Kim SoYeon,
Lim GooIl,
Lee Sungyul,
Choi Young S.,
Kim Sang Kyu
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200905619
Subject(s) - diazirine , photodissociation , chemistry , excited state , fano plane , excitation , photochemistry , chemical physics , atomic physics , physics , quantum mechanics , mathematics , pure mathematics
Lights, spectrometer, action : Crucial information about the detailed shape of the potential‐energy surface in the vicinity of the transition state is obtained from the Fano resonances in the photodissociation cross‐section of diazirine in the S 1 state. The excitation along the asymmetric CN stretching mode accelerates the ring‐opening reaction, suggesting that two CN bonds of the excited diazirine break in a stepwise manner (see scheme).