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

doi:10.1039/c3dt50874a

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

Chemistry

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

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.

Original language	English
Pages (from-to)	85-94
Number of pages	10
Journal	Dalton Transactions
Volume	43
Issue number	1
Early online date	27 Sept 2013
DOIs	https://doi.org/10.1039/c3dt50874a
Publication status	Published - 2014

Access to Document

10.1039/c3dt50874aLicence: None: All rights reserved

https://doi.org/10.1039/C3DT50874ALicence: None: All rights reserved

Cite this

@article{efcaa75b637541a8b489625d98e8f786,

title = "Photophysics and electrochemistry of a platinum-acetylide disubstituted perylenediimide",

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.",

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

year = "2014",

doi = "10.1039/c3dt50874a",

language = "English",

volume = "43",

pages = "85--94",

journal = "Dalton Transactions",

issn = "1477-9226",

publisher = "Royal Society of Chemistry",

number = "1",

}

TY - JOUR

T1 - Photophysics and electrochemistry of a platinum-acetylide disubstituted perylenediimide

AU - Llewellyn, Ben A.

AU - Slater, Anna G.

AU - Goretzki, Gudrun

AU - Easun, Timothy L.

AU - Sun, Xue-Zhong

AU - Davies, E. Stephen

AU - Argent, Stephen P.

AU - Lewis, William

AU - Beeby, Andrew

AU - George, Michael W.

AU - Champness, Neil R.

PY - 2014

Y1 - 2014

N2 - 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.

AB - 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.

UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000327665200013&KeyUID=WOS:000327665200013

U2 - 10.1039/c3dt50874a

DO - 10.1039/c3dt50874a

M3 - Article

SN - 1477-9226

VL - 43

SP - 85

EP - 94

JO - Dalton Transactions

JF - Dalton Transactions

IS - 1

ER -

Photophysics and electrochemistry of a platinum-acetylide disubstituted perylenediimide

Abstract

Access to Document

Fingerprint

Cite this