Issue 36, 2010
From the journal:

Chemical Communications

DNA photocleavage by an osmium(ii) complex in the PDT window†

Yujie Sun,a   Lauren E. Joyce,a   Nicole M. Dicksona  and  Claudia Turro*a  

* Corresponding authors

a Department of Chemistry, The Ohio State University, Columbus, Ohio, USA
E-mail: turro@chemistry.ohio-state.edu
Fax: +1 614-292-1685
Tel: +1 614-292-6708

Abstract

The extended π-delocalization of dppn (benzo[i]dipyrido[3,2-a:2,3-c]phenazine) results in a 3ππ* state as the lowest triplet excited state in [Os(bpy)2(dppn)]2+ (bpy = 2,2′-bipyridine), which generates a 1O2 quantum yield of 0.42. Together with its 3MLCT absorption, this new osmium complex shows efficient DNA cleavage under irradiation of λirr ≥ 645 nm.

Graphical abstract: DNA photocleavage by an osmium(ii) complex in the PDT window

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Article information

DOI
https://doi.org/10.1039/C0CC02571B
Article type
Communication
Submitted
14 Jul 2010
Accepted
29 Jul 2010
First published
17 Aug 2010

Chem. Commun., 2010,46, 6759-6761

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DNA photocleavage by an osmium(II) complex in the PDT window

Y. Sun, L. E. Joyce, N. M. Dickson and C. Turro, Chem. Commun., 2010, 46, 6759 DOI: 10.1039/C0CC02571B

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