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Novel dithiolene complexes incorporating conjugated electroactive ligands

Novel dithiolene complexes incorporating conjugated electroactive ligands
Novel dithiolene complexes incorporating conjugated electroactive ligands
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.
polymers, metallopolymers, precursors, metal-complexes, units, crystal-structures, sexithiophenes, derivatives
1477-9226
3070-3079
Skabara, P.J.
4479c8a5-753f-4735-9c19-c057bb2c6a5e
Pozo-Gonzalo, C.
b1ff7a44-d32c-47f1-9131-b30141de964d
Miazza, N.L.
cd655445-c0b8-421c-a458-0d452b1491a6
Laguna, M.
2274f036-7200-4963-95ee-36d746d5238b
Cerrada, E.
0eaa9f2b-2a66-4720-bf3d-c09e2f9da156
Luquin, A.
e6dffedd-72e7-4b85-a0d1-9a04adab6d12
Gonzalez, B.
45a60e5d-8134-4ea0-92eb-1171212dd8f1
Coles, S.J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Hursthouse, M.B.
57a2ddf9-b1b3-4f38-bfe9-ef2f526388da
Harrington, R.W.
e912893d-1846-4f66-8f20-b810e7aef239
Clegg, W.
a29c8e43-b6a6-4db7-9ce2-e44da8792cb5
Skabara, P.J.
4479c8a5-753f-4735-9c19-c057bb2c6a5e
Pozo-Gonzalo, C.
b1ff7a44-d32c-47f1-9131-b30141de964d
Miazza, N.L.
cd655445-c0b8-421c-a458-0d452b1491a6
Laguna, M.
2274f036-7200-4963-95ee-36d746d5238b
Cerrada, E.
0eaa9f2b-2a66-4720-bf3d-c09e2f9da156
Luquin, A.
e6dffedd-72e7-4b85-a0d1-9a04adab6d12
Gonzalez, B.
45a60e5d-8134-4ea0-92eb-1171212dd8f1
Coles, S.J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Hursthouse, M.B.
57a2ddf9-b1b3-4f38-bfe9-ef2f526388da
Harrington, R.W.
e912893d-1846-4f66-8f20-b810e7aef239
Clegg, W.
a29c8e43-b6a6-4db7-9ce2-e44da8792cb5

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).

Record type: Article

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.

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More information

Published date: 7 May 2008
Keywords: polymers, metallopolymers, precursors, metal-complexes, units, crystal-structures, sexithiophenes, derivatives

Identifiers

Local EPrints ID: 54504
URI: http://eprints.soton.ac.uk/id/eprint/54504
ISSN: 1477-9226
PURE UUID: 655e4e54-b600-470b-953e-3425a6079cc1
ORCID for S.J. Coles: ORCID iD orcid.org/0000-0001-8414-9272

Catalogue record

Date deposited: 19 Aug 2008
Last modified: 10 Sep 2019 00:49

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Contributors

Author: P.J. Skabara
Author: C. Pozo-Gonzalo
Author: N.L. Miazza
Author: M. Laguna
Author: E. Cerrada
Author: A. Luquin
Author: B. Gonzalez
Author: S.J. Coles ORCID iD
Author: M.B. Hursthouse
Author: R.W. Harrington
Author: W. Clegg

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