Issue 15, 2013
From the journal:

RSC Advances

Charge transfer properties of a donor–acceptor dyad based on an expanded acridinium cation†

Andrew C. Benniston,*a   Xiaoyan He,a   Helge Lemmetyinenb  and  Nikolai V. Tkachenko*b  

* Corresponding authors

a Molecular Photonics Laboratory, School of Chemistry, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
E-mail: a.c.benniston@ncl.ac.uk
Fax: +44 191 222 6929
Tel: +44 191 222 5706

b Tampere University of Technology, Department of Chemistry & Bioengineering, P.O.Box 541, Tampere, Finland
E-mail: nikolai.tkachenko@tut.fi

Abstract

Photophysical properties of a donor–acceptor dyad are discussed, which is based on an N,N-dimethylaniline subunit connected to an expanded acridinium cation. Ground-state charge transfer results in the appearance of a moderately intense absorption band in the visible region. The peak maximum shifts to shorter wavelength (higher energy) with an increase in solvent polarity. Excitation of the compound in MeCN or DCE results in ultrafast (<1 ps) charge shift to place positive charge on the N,N-dimethylaniline, and is followed by the charge recombination in the 10–200 ps time domain.

Graphical abstract: Charge transfer properties of a donor–acceptor dyad based on an expanded acridinium cation

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Article information

DOI
https://doi.org/10.1039/C3RA22813D
Article type
Paper
Submitted
08 Nov 2012
Accepted
30 Jan 2013
First published
31 Jan 2013

RSC Adv., 2013,3, 4995-5002

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Charge transfer properties of a donor–acceptor dyad based on an expanded acridinium cation

A. C. Benniston, X. He, H. Lemmetyinen and N. V. Tkachenko, RSC Adv., 2013, 3, 4995 DOI: 10.1039/C3RA22813D

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