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Broadband near-IR absorbing Au-dithiolene complexes bearing redox-active oligothiophene ligands

Broadband near-IR absorbing Au-dithiolene complexes bearing redox-active oligothiophene ligands
Broadband near-IR absorbing Au-dithiolene complexes bearing redox-active oligothiophene ligands

A series of three homoleptic, monoanionic gold dithiolene complexes of oligothiophene ligands which coordinate via a central thiophene-3,4-dithiolate chelate are presented. The oligomer chains are three, five and seven thiophenes long and the complexes display hybrid optoelectronic properties featuring characteristics of both the oligothiophene chains and the delocalised metal dithiolene centre. The properties of the complexes have been characterised using a variety of spectroscopic and electrochemical methods complemented by computational studies. Solid state spectroelectrochemistry has revealed that upon oxidation these complexes display intense and broad absorption across the visible spectrum. In attempting to produce nickel analogues of these materials a single crystal of a photo-oxidised nickel dithiolene complex has also been isolated.

1477-9226
107-116
Wrigh, Iain A.
3ac2e6d8-ea52-4715-806b-50a7005ad5ec
Wilson, Claire
7a53140a-0079-4aac-8b5a-a375b3659dd2
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Skabara, Peter J.
7138e414-7d50-41c7-933e-0bccad2fa4cd
Wrigh, Iain A.
3ac2e6d8-ea52-4715-806b-50a7005ad5ec
Wilson, Claire
7a53140a-0079-4aac-8b5a-a375b3659dd2
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Skabara, Peter J.
7138e414-7d50-41c7-933e-0bccad2fa4cd

Wrigh, Iain A., Wilson, Claire, Coles, Simon J. and Skabara, Peter J. (2019) Broadband near-IR absorbing Au-dithiolene complexes bearing redox-active oligothiophene ligands. Dalton Transactions, 48 (1), 107-116. (doi:10.1039/c8dt03915a).

Record type: Article

Abstract

A series of three homoleptic, monoanionic gold dithiolene complexes of oligothiophene ligands which coordinate via a central thiophene-3,4-dithiolate chelate are presented. The oligomer chains are three, five and seven thiophenes long and the complexes display hybrid optoelectronic properties featuring characteristics of both the oligothiophene chains and the delocalised metal dithiolene centre. The properties of the complexes have been characterised using a variety of spectroscopic and electrochemical methods complemented by computational studies. Solid state spectroelectrochemistry has revealed that upon oxidation these complexes display intense and broad absorption across the visible spectrum. In attempting to produce nickel analogues of these materials a single crystal of a photo-oxidised nickel dithiolene complex has also been isolated.

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More information

Accepted/In Press date: 15 November 2018
e-pub ahead of print date: 16 November 2018
Published date: 2019

Identifiers

Local EPrints ID: 427134
URI: https://eprints.soton.ac.uk/id/eprint/427134
ISSN: 1477-9226
PURE UUID: 401b1bc2-1314-43c3-8192-05a07c0983ed
ORCID for Simon J. Coles: ORCID iD orcid.org/0000-0001-8414-9272

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Date deposited: 03 Jan 2019 17:30
Last modified: 04 Jan 2019 01:36

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