Intramolecular charge transfer in aminobenzonitriles: Requirements for dual fluorescence

Autor:	Uwe Leinhos, T. von der Haar, A. Hebecker, Klaas A. Zachariasse, Wolfgang Kühnle
Rok vydání:	1993
Předmět:	Vibronic coupling Absorption spectroscopy Band gap Chemistry General Chemical Engineering Jahn–Teller effect Excited state Intramolecular force General Chemistry Photochemistry Fluorescence Fluorescence spectroscopy
Zdroj:	Pure and Applied Chemistry. 65:1745-1750
ISSN:	1365-3075 0033-4545
DOI:	10.1351/pac199365081745
Popis:	Dual fluorescence and intramolecular charge transfer (ICT) are observed with aminobenzonitriles when two excited state levels (S 1 and S 2 (CT) in DMABN) have an energy gap sufficiently small for vibronic coupling: a solvent-induced pseudo-Jahn-Teller effect. It is argued that the N-inversion of the amino group acts as a promoting mode. These conclusions are based on a comparison of absorption spectra and photostationary and time-resolved fluorescence data
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dfbcb1c0ae7d97bca5033eb93a5a4787 https://doi.org/10.1351/pac199365081745 Zobrazit plný text záznamu