Llewellyn, Ben A., Slater, Anna G., Goretzki, Gudrun, Easun, Timothy  ORCID: https://orcid.org/0000-0002-0713-2642, Sun, Xue-Zhong, Davies, E. Stephen, Argent, Stephen P., Lewis, William, Beeby, Andrew, George, Michael W. and Champness, Neil R.
2014.
Photophysics and electrochemistry of a platinum-acetylide disubstituted perylenediimide.
Dalton Transactions
43
(1)
, pp. 85-94.
10.1039/c3dt50874a
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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.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Chemistry |
| Subjects: | Q Science > QD Chemistry |
| Publisher: | Royal Society of Chemistry |
| ISSN: | 1477-9226 |
| Date of First Compliant Deposit: | 12 July 2016 |
| Last Modified: | 30 Nov 2024 15:15 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/71016 |
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