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Issue 10, 2011
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Cyclometalated [Os(C–N)x(N–N)3−x]m+ mimetics of tris(2,2′-bipyridine)osmium(ii): covering a 2 V potential range by known (x = 0, 1) and new (x = 2, 3) species (C–N = o-2-phenylpyridinato)

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Abstract

Electrochemical studies of [Os(C–N)x(N–N)3−x]m+ (1) consisting of known OsII species with x = 0 (a) and 1 (b) and crystallographically characterized new OsIII bis- and tris-metalacycles with x = 2 (c) and 3 (d) (N–N = 2,2′-bipyridine, C–N = 2-phenylpyridinato) revealed a Nernstian behavior in MeCN. A stepwise replacement of neutral N–N ligands by three anionic C–N donors covers a 2 V potential range from −1 to +1 V vs. Ag/AgCl for the OsIII/OsII feature.

Graphical abstract: Cyclometalated [Os(C–N)x(N–N)3−x]m+ mimetics of tris(2,2′-bipyridine)osmium(ii): covering a 2 V potential range by known (x = 0, 1) and new (x = 2, 3) species (C–N = o-2-phenylpyridinato)

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Article information


Submitted
23 Oct 2010
Accepted
16 Dec 2010
First published
14 Jan 2011

Chem. Commun., 2011,47, 2823-2825
Article type
Communication

Cyclometalated [Os(C–N)x(N–N)3−x]m+ mimetics of tris(2,2′-bipyridine)osmium(II): covering a 2 V potential range by known (x = 0, 1) and new (x = 2, 3) species (C–N = o-2-phenylpyridinato)

R. Cerón-Camacho, S. Hernández, R. Le Lagadec and A. D. Ryabov, Chem. Commun., 2011, 47, 2823
DOI: 10.1039/C0CC04582A

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