Tetrathiafulvalene–7,7,8,8-tetracyanoquinodimethane and tetrathiafulvalene–2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane organic charge-transfer complexes: Reusable catalysts for electron-transfer reactions

Hoshyargar, Faegheh & O'Mullane, Anthony P. (2016) Tetrathiafulvalene–7,7,8,8-tetracyanoquinodimethane and tetrathiafulvalene–2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane organic charge-transfer complexes: Reusable catalysts for electron-transfer reactions. ChemCatChem, 8(14), pp. 2335-2339.

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Abstract

The application of organic charge-transfer complexes such as TTF-TCNQ (TTF=tetrathiafulvalene, TCNQ=7,7,8,8-tetracyanoquinodimethane) is well known in the area of organic electronics. However, the applicability of this material and its derivatives has not been explored for catalytic reactions. Herein, we report on the catalytic properties of both TTF-TCNQ and the significantly less-known fluorinated analogue TTF-TCNQF4 (TCNQF4=2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane). The model reaction of ferricyanide ion reduction by thiosulfate ions was chosen, for which it was found that both materials were indeed catalytically active. Significantly, the fluorinated TCNQF4 analogue showed considerably higher catalytic activity than TTF-TCNQ. In addition, TTF-TCNQF4 was found to be highly stable under the catalytic conditions and could be recovered and reused without any loss in performance for at least 10 catalytic cycles. This work opens up new avenues for investigating these types of materials for catalytic reactions.

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ID Code: 97620
Item Type: Journal Article
Refereed: Yes
Keywords: charge transfer, electron transfer, heterogeneous catalysis, semiconductors, tetrathiafulvalene
DOI: 10.1002/cctc.201600467
ISSN: 1867-3899
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Funding:
Facilities: Central Analytical Research Facility
Copyright Owner: Copyright 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Deposited On: 25 Jul 2016 23:03
Last Modified: 31 Jul 2016 04:05

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