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

Wright, I. A., Wilson, C. , Coles, S. J. and Skabara, P. J. (2019) Broadband near-IR absorbing Au-dithiolene complexes bearing redox-active oligothiophene ligands. Dalton Transactions, 48(1), pp. 107-116. (doi: 10.1039/C8DT03915A) (PMID:30462113)

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.

• Item Type: Articles
• Additional Information: PJS and IAW acknowledge the EPSRC for funding. IAW acknowledges Loughborough University and the Royal Society of Chemistry Research Fund (Grant No. RF18-5353) for funding.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Skabara, Professor Peter and Wilson, Dr Claire
• Authors: Wright, I. A., Wilson, C., Coles, S. J., and Skabara, P. J.
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Dalton Transactions
• Publisher: Royal Society of Chemistry
• ISSN: 1477-9226
• ISSN (Online): 1477-9234
• Published Online: 16 November 2018
• Copyright Holders: Copyright © 2019 The Royal Society of Chemistry
• First Published: First published in Dalton Transactions 48(1): 107-116
• Publisher Policy: Reproduced under a Creative Commons License