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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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Supplementary files

Article information


Submitted
23 Jul 2013
Accepted
10 Sep 2013
First published
27 Sep 2013

Dalton Trans., 2014,43, 85-94
Article type
Paper

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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