Issue 23, 2014
From the journal:

Chemical Communications

Long-lived excited states in i-motif DNA studied by picosecond time-resolved IR spectroscopy†

Páraic M. Keane,a   Michal Wojdyla,b   Gerard W. Doorley,b   John M. Kelly,b   Anthony W. Parker,c   Ian P. Clark,c   Gregory M. Greetham,c   Michael Towrie,c   Luís M. Magnoa  and  Susan J. Quinn*a  

* Corresponding authors

a School of Chemistry and Chemical Biology, University College Dublin, Dublin 4, Ireland
E-mail: susan.quinn@ucd.ie
Tel: +353 17162407

b School of Chemistry, Trinity College, Dublin 2, Ireland

c Central Laser Facility, Research Complex at Harwell, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Harwell Oxford, Didcot, Oxfordshire, UK OX11 0QX

Abstract

The transient IR absorption spectrum for UV-excited i-motif DNA is reported for the first time and found to possess complex dynamics pointing to multiple decay processes, including possible charge transfer between packed hemi-protonated C bases.

Graphical abstract: Long-lived excited states in i-motif DNA studied by picosecond time-resolved IR spectroscopy

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Article information

DOI
https://doi.org/10.1039/C3CC46594B
Article type
Communication
Submitted
30 Aug 2013
Accepted
18 Sep 2013
First published
18 Sep 2013

Chem. Commun., 2014,50, 2990-2992

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Long-lived excited states in i-motif DNA studied by picosecond time-resolved IR spectroscopy

P. M. Keane, M. Wojdyla, G. W. Doorley, J. M. Kelly, A. W. Parker, I. P. Clark, G. M. Greetham, M. Towrie, L. M. Magno and S. J. Quinn, Chem. Commun., 2014, 50, 2990 DOI: 10.1039/C3CC46594B

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