Issue 3, 2006
From the journal:

Physical Chemistry Chemical Physics

Time-resolved EPR spectra of the triplet excited states of diaminoacridine guests in polar potassium hydrogen phthalate single crystals

Marco Bellinazzi,a   Antonio Barbon,a   Bart Kahr,b   Jason B. Benedictb  and  Marina Brustolon*a  

* Corresponding authors

a Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, Padova, Italy
E-mail: marinarosa.brustolon@unipd.it
Fax: +390498275135
Tel: +390498275109

b Department of Chemistry, University of Washington, Box 351700, Seattle, USA
Fax: (+1) 206-685-8665

Abstract

Mixed crystals of potassium hydrogen phthalate containing 3,6-diaminoacridine were photoexcited with visible light and the resulting triplet excited states were analyzed by time resolved EPR spectroscopy. Spectra from discrete growth sectors were compared with powders and polycrystalline glasses prepared at various pHs. The data yield the predominant protonation state and orientation of the triplets in each of a pair of growth sectors bounding the positive and negative ends of the polar crystal.

Graphical abstract: Time-resolved EPR spectra of the triplet excited states of diaminoacridine guests in polar potassium hydrogen phthalate single crystals

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Article information

DOI
https://doi.org/10.1039/B510076C
Article type
Paper
Submitted
15 Jul 2005
Accepted
27 Oct 2005
First published
18 Nov 2005

Phys. Chem. Chem. Phys., 2006,8, 379-385

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Time-resolved EPR spectra of the triplet excited states of diaminoacridine guests in polar potassium hydrogen phthalate single crystals

M. Bellinazzi, A. Barbon, B. Kahr, J. B. Benedict and M. Brustolon, Phys. Chem. Chem. Phys., 2006, 8, 379 DOI: 10.1039/B510076C

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