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Issue 1, 2014
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Photophysics and electrochemistry of a platinum-acetylide disubstituted perylenediimide

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Abstract

The synthesis and photophysical study of a perylene diimide (PDI) functionalised with platinum acetylide units of the type, trans{–C[triple bond, length as m-dash]C–Pt(PBu3)2–C[triple bond, length as m-dash]C–Ph} and comparison with a phenylacetylide substituted model compound are reported. The model compound demonstrates typical perylene absorption and photoluminescence spectra characteristic of singlet excited state formation and decay. The Pt-substitution, however, appears to induce spin–orbit coupling into the chromophore and giving rise to a triplet excited state which was confirmed by transient absorption measurements. This excited state is quenched by oxygen, leading to the formation of singlet oxygen in dichloromethane, recorded by time-resolved near-infrared luminescence measurements.

Graphical abstract: Photophysics and electrochemistry of a platinum-acetylide disubstituted perylenediimide

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Publication details

The article was received on 23 Jul 2013, accepted on 10 Sep 2013 and first published on 27 Sep 2013


Article type: Paper
DOI: 10.1039/C3DT50874A
Dalton Trans., 2014,43, 85-94

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    Photophysics and electrochemistry of a platinum-acetylide disubstituted perylenediimide

    B. A. Llewellyn, A. G. Slater, G. Goretzki, T. L. Easun, X. Sun, E. S. Davies, S. P. Argent, W. Lewis, A. Beeby, M. W. George and N. R. Champness, Dalton Trans., 2014, 43, 85
    DOI: 10.1039/C3DT50874A

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