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Alkyne substituted mononuclear photocatalysts based on [RuCl(bpy)(tpy)](+)

Davidson, R.J.; Wilson, L.E.; Duckworth, A.R.; Yufit, D.S.; Beeby, A.; Low, P.J.

Alkyne substituted mononuclear photocatalysts based on [RuCl(bpy)(tpy)](+) Thumbnail


Authors

R.J. Davidson

L.E. Wilson

A.R. Duckworth

D.S. Yufit

P.J. Low



Abstract

The ethynyl-phenylene substituted 2,2′:6′,2′′-terpyridine (tpy) derivatives, 4-(phenyl-ethynyl)-2,2′:6′,2′′-terpyridine (L1), 4-(methoxyphenyl-ethynyl)-2,2′:6′,2′′-terpyridine (L2), 4-(tolyl-ethynyl)-2,2′:6′,2′′-terpyridine (L3) and 4-(nitrophenyl-ethynyl)-2,2′:6′,2′′-terpyridine (L4) have been used to synthesize four new [RuCl(2,2′-bipyridine)(Ln)]PF6 based complexes. Electronic absorption, resonance Raman, cyclic voltammetry and spectroelectrochemistry aided by DFT calculations were used to explore the influence of the alkynyl substituents on the electronic structures, photochemical and redox properties of the complexes. Furthermore, it is shown that the addition of ethynyl phenyl moieties to the 4-position of the tpy ligand does not have a detrimental effect on these complexes, or the analogous aqua complexes, with respect to their ability to photocatalyse the oxidation of 4-methoxybenzyl alcohol to the corresponding benzaldehyde.

Citation

Davidson, R., Wilson, L., Duckworth, A., Yufit, D., Beeby, A., & Low, P. (2015). Alkyne substituted mononuclear photocatalysts based on [RuCl(bpy)(tpy)](+). Dalton Transactions, 44(25), 11368-11379. https://doi.org/10.1039/c5dt01278c

Journal Article Type Article
Acceptance Date Apr 30, 2015
Online Publication Date May 5, 2015
Publication Date Jul 7, 2015
Deposit Date Apr 14, 2016
Publicly Available Date Mar 29, 2024
Journal Dalton Transactions
Print ISSN 1477-9226
Electronic ISSN 1477-9234
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 44
Issue 25
Pages 11368-11379
DOI https://doi.org/10.1039/c5dt01278c

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