Do fluorescence and transient absorption probe the same intramolecular charge transfer state of 4-(dimethylamino)benzonitrile?

T. Gustavsson (1) , P.-B. Coto (2) , L. Serrano-Andres (2) , Taiga Fujiwara (3) , E.-C. Lim (3)

1 LFP - URA 2453 - Laboratoire Francis PERRIN
2 Molecular Science Institute
3 Department of Chemistry and The Center for Laser and Optical Spectroscopy

We present here the results of time-resolved absorption and emission experiments for 4-(dimethylamino)benzonitrile in solution, which suggest that the fluorescent intramolecular charge transfer (ICT) state may differ from the twisted ICT (TICT) state observed in transient absorption.

Mots clés: charge exchange; fluorescence; organic compounds; spectrochemical analysis; time resolved spectra; visible spectra

Domaines: Chimie théorique et/ou physique

T. Gustavsson, P.-B. Coto, L. Serrano-Andres, Taiga Fujiwara, E.-C. Lim. Do fluorescence and transient absorption probe the same intramolecular charge transfer state of 4-(dimethylamino)benzonitrile?. Journal of Chemical Physics, 2009, 131 (3), pp.031101. ⟨10.1063/1.3173609⟩. ⟨hal-00415167⟩