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Issue 36, 2010
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DNA photocleavage by an osmium(II) complex in the PDT window

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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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Publication details

The article was received on 14 Jul 2010, accepted on 29 Jul 2010 and first published on 17 Aug 2010


Article type: Communication
DOI: 10.1039/C0CC02571B
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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