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

Research output: Journal Publication › Article › peer-review

36 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 language	English
Pages (from-to)	85-94
Number of pages	10
Journal	Dalton Transactions
Volume	43
Issue number	1
DOIs	https://doi.org/10.1039/c3dt50874a
Publication status	Published - 7 Jan 2014
Externally published	Yes

ASJC Scopus subject areas

Inorganic Chemistry

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10.1039/c3dt50874a

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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≡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.",

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

year = "2014",

month = jan,

day = "7",

doi = "10.1039/c3dt50874a",

language = "English",

volume = "43",

pages = "85--94",

journal = "Dalton Transactions",

issn = "1477-9226",

publisher = "Royal Society of Chemistry",

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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 - 2014/1/7

Y1 - 2014/1/7

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/84889670086

U2 - 10.1039/c3dt50874a

DO - 10.1039/c3dt50874a

M3 - Article

AN - SCOPUS:84889670086

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

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