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Inside Back Cover: Excited‐State Dynamics of Pentacene Derivatives with Stable Radical Substituents (Angew. Chem. Int. Ed. 26/2014)
Author(s) -
Ito Akitaka,
Shimizu Akihiro,
Kishida Noriaki,
Kawanaka Yusuke,
Kosumi Daisuke,
Hashimoto Hideki,
Teki Yoshio
Publication year - 2014
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201401150
Subject(s) - pentacene , intersystem crossing , singlet fission , photochemistry , excited state , singlet state , ultrafast laser spectroscopy , chemistry , absorption (acoustics) , triplet state , solvatochromism , moiety , materials science , stereochemistry , solvent , organic chemistry , physics , atomic physics , optics , thin film transistor , laser , electrode , composite material
More than one pentacene triplet is produced from the absorption of one photon. In their Communication on page 6715 ff., Y. Teki et al. describe how transient absorption measurements performed on pentacene derivatives with stable radical substituents in dilute solution demonstrate that the ultrafast formation of a triplet excited state in the pentacene moiety (violet) from a photoexcited singlet state (green) occurs through contributions of enhanced intersystem crossing and singlet fission.