Orbital engineering: photoactivation of an organofunctionalized polyoxotungstate

Newton, Graham and Oshio, Hiroki and Cameron, Jamie and Fujimoto, Satomi and Kastner, Katharina and Wei, Rong Jia and Robinson, David and Sans, Victor (2017) Orbital engineering: photoactivation of an organofunctionalized polyoxotungstate. Chemistry - a European Journal, 23 (1). pp. 47-50. ISSN 1521-3765

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Abstract

Tungsten-based polyoxometalates (POMs) are employed as UV-driven photo-catalysts for a range of organic transformations. Their photoactivity is dependent on electronic transitions between frontier orbitals, and thus manipulation of orbital energy levels provides a promising means of extending their utility into the visible regime. Here, an organic-inorganic hybrid polyoxometalate, K₆[P₂2W₁₇O₅₇(PO₅H₅C₇)₂]·6C₄H₉NO, was found to exhibit enhanced redox behavior and photochemistry compared to its purely inorganic counterparts. Hybridization with electron withdrawing moieties was shown to modify the frontier orbital energy levels and reduce the HOMO-LUMO gap, leading to direct visible-light photoactivation of the hybrid, and establishing a simple, cheap and effective approach to the generation of visible-light-activated hybrid nanomaterials

Item Type: Article
Additional Information: This is the peer reviewed version of the following article: Newton, G. N., Oshio, H., Cameron, J., Fujimoto, S., Kastner, K., Wei, R.-J., Robinson, D. and Sans, V. (2016), Orbital Engineering: Photoactivation of an Organofunctionalized Polyoxotungstate. Chem. Eur. J., which has been published in final form at http://dx.doi.org/10.1002/chem.201605021. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Keywords: Polyoxometalates; Photochemistry; Visible-light; Catalysis; Electrochemistry
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Chemistry
Identification Number: 10.1002/chem.201605021
Depositing User: Bramwell, Roseanna
Date Deposited: 14 Nov 2016 08:26
Last Modified: 01 Nov 2017 04:30
URI: http://eprints.nottingham.ac.uk/id/eprint/38667

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