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S 2 Fluorescence Dynamics of meso ‐Aryl‐Substituted Subporphyrins
Author(s) -
Sung Jooyoung,
Kim Pyosang,
Saga Shun,
Hayashi Shinya,
Osuka Atsuhiro,
Kim Dongho
Publication year - 2013
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.201307566
Subject(s) - fluorescence , degenerate energy levels , excited state , dipole , dynamics (music) , symmetry (geometry) , aryl , chemistry , molecular physics , atomic physics , physics , photochemistry , chemical physics , optics , quantum mechanics , geometry , mathematics , organic chemistry , alkyl , acoustics
S 2 Fluorescence : Subporphyrins are intriguing compounds, but the behavior of their higher excited states has not been studied thus far. The S 2 fluorescence of subporphyrins has now been investigated; internal conversion from the S 2 to the S 1 state was revealed to occur within approximately 300 fs. The two transition dipole moments of the degenerate S 2 states are orthogonally oriented despite the C 3 symmetry of the subporphyrin.