Jump to main content
Jump to site search

Issue 17, 2014
Previous Article Next Article

Can the dipolarity of the medium induce the formation of charge transfer structures? An unexpected finding in the photophysics of DMABN

Author affiliations

Abstract

A thorough analysis of the absorption and emission spectra of p-dimethylaminobenzonitrile (DMABN) in ethyl acetate, diethyl ether, 1-chlorobutane, dichloromethane and trimethyl phosphate recorded at both 298 K and the melting point of each solvent allowed us to examine the corresponding emission excitation spectra by monitoring light across the dual fluorescence emission for DMABN. Based on its excitation spectra, DMABN forms charge transfer structures in solvents with a dipolarity exceeding 0.9 on the SdP (solvent dipolarity) scale that can be directly excited to a TICT structure from their ground electronic state. These results contradict the widespread assumptions made about the photophysics of DMABN over the past fifty years.

Graphical abstract: Can the dipolarity of the medium induce the formation of charge transfer structures? An unexpected finding in the photophysics of DMABN

Back to tab navigation

Article information


Submitted
13 Jan 2014
Accepted
28 Feb 2014
First published
28 Feb 2014

Phys. Chem. Chem. Phys., 2014,16, 7734-7740
Article type
Paper

Can the dipolarity of the medium induce the formation of charge transfer structures? An unexpected finding in the photophysics of DMABN

J. Catalán, Phys. Chem. Chem. Phys., 2014, 16, 7734
DOI: 10.1039/C4CP00177J

Social activity

Search articles by author

Spotlight

Advertisements