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), pp. 3070-3079. (doi:10.1039/b801187g).

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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
Digital Object Identifier (DOI): doi:10.1039/b801187g
ISSNs: 1477-9226 (print)
Keywords: polymers, metallopolymers, precursors, metal-complexes, units, crystal-structures, sexithiophenes, derivatives
Subjects:
ePrint ID: 54504
Date :
Date Event
7 May 2008Published
Date Deposited: 19 Aug 2008
Last Modified: 16 Apr 2017 17:46
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/54504

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