Intramolecular charge transfer and dual fluorescence of 4-(dimethylamino)benzonitrile: ultrafast branching followed by a two-fold decay mechanism

Pedro B Coto; Luis Serrano-Andrés; Thomas Gustavsson; Takashige Fujiwara; Edward C Lim

doi:10.1039/c1cp21089k

Intramolecular charge transfer and dual fluorescence of 4-(dimethylamino)benzonitrile: ultrafast branching followed by a two-fold decay mechanism

Phys Chem Chem Phys. 2011 Sep 7;13(33):15182-8. doi: 10.1039/c1cp21089k. Epub 2011 Jul 18.

Authors

Pedro B Coto¹, Luis Serrano-Andrés, Thomas Gustavsson, Takashige Fujiwara, Edward C Lim

Affiliation

¹ Interdisziplinäres Zentrum für Molekulare Materialien (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg Staudtstrasse 7/B2, D-91058 Erlangen, Germany. pedro.brana-coto@physik.uni-erlangen.de

PMID: 21769358
DOI: 10.1039/c1cp21089k

Abstract

In this contribution we present new experimental and theoretical results for the intramolecular charge transfer (ICT) reaction underlying the dual fluorescence of 4-(dimethylamino)benzonitrile (DMABN), which indicate that the fully twisted ICT (TICT) state is responsible for the time-resolved transient absorption spectrum while a distinct partially twisted ICT (pTICT) structure is suggested for the fluorescent ICT state.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Fluorescence*
Nitriles / chemistry*
Quantum Theory
Spectrometry, Fluorescence
Time Factors

Substances

4-(n,n-dimethylamino)benzonitrile
Nitriles