Photophysics and electrochemistry of a platinum-acetylide disubstituted perylenediimide

Ben A. Llewellyn, Anna G. Slater, Gudrun Goretzki, Timothy L. Easun, Xue Zhong Sun, E. Stephen Davies, Stephen P. Argent, William Lewis, Andrew Beeby, Michael W. George, Neil R. Champness

Research output: Journal PublicationArticlepeer-review

30 Citations (Scopus)

Abstract

The synthesis and photophysical study of a perylene diimide (PDI) functionalised with platinum acetylide units of the type, trans{-C≡C- Pt(PBu3)2-C≡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.

Original languageEnglish
Pages (from-to)85-94
Number of pages10
JournalDalton Transactions
Volume43
Issue number1
DOIs
Publication statusPublished - 7 Jan 2014

ASJC Scopus subject areas

  • Inorganic Chemistry

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