Novel dithiolene complexes incorporating conjugated electroactive ligands


Skabara, P.J., Pozo-Gonzalo, C., Miazza, N.L., Laguna, M., Cerrada, E., Luquin, A., Gonzalez, B., Coles, S.J., Hursthouse, M.B., Harrington, R.W. and Clegg, W. (2008) Novel dithiolene complexes incorporating conjugated electroactive ligands. Dalton Transactions, (23), 3070-3079. (doi:10.1039/b801187g).

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

Description/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.

Item Type: Article
ISSNs: 1477-9226 (print)
Related URLs:
Keywords: polymers, metallopolymers, precursors, metal-complexes, units,crystal-structures, sexithiophenes, derivatives
Subjects: Q Science
Q Science > QD Chemistry
Divisions: University Structure - Pre August 2011 > School of Chemistry
ePrint ID: 54504
Date Deposited: 19 Aug 2008
Last Modified: 27 Mar 2014 18:37
URI: http://eprints.soton.ac.uk/id/eprint/54504

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