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Novel dithiolene complexes incorporating conjugated electroactive ligands

Lookup NU author(s): Dr Ross Harrington, Professor William Clegg

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Abstract

A series of new metal (M) dithiolene complexes bearing terthiophene (3, 12, M = Ni; 4, M = Pd; 5, 6, M = Au) and 2,5-bis(para-methoxyphenyl)thiophene units (14, M = Ni; 15, 16, M = Au; 17, M = Pd) have been synthesised in 38-99% yield. The electrochemical properties of the materials have been characterised by cyclic voltammetry and UV-vis spectroelectrochemistry. The nickel complexes possess low oxidation potentials (-0.12 to -0.25 V vs Ag/AgCl) due to the electron-rich dithiolene centres and all complexes display ligand-based redox activity. The terthiophene derivatives have been polymerised by electrochemical oxidation to give stable films with, in the case of poly(3), broad absorption characteristics. Charge transfer materials have been isolated from 14 and 16 with conductivities in the range 9 × 10-6 to 7 × 10 -8 S cm-1. © The Royal Society of Chemistry 2008.

Publication metadata

Author(s): Skabara PJ, Pozo-Gonzalo C, Lardies Miazza N, Laguna M, Cerrada E, Luquin A, Gonzalez B, Coles SJ, Hursthouse MB, Harrington RW, Clegg W

Publication type: Article

Publication status: Published

Journal: Dalton Transactions

Year: 2008

Issue: 23

Pages: 3070-3079

Print publication date: 01/01/2008

ISSN (print): 1477-9226

ISSN (electronic): 1477-9234

Publisher: Royal Society of Chemistry

URL: http://dx.doi.org/10.1039/b801187g

DOI: 10.1039/b801187g

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