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Issue 26, 2019
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The role of symmetric functionalisation on photoisomerisation of a UV commercial chemical filter

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Abstract

Photoisomerisation has been shown to be an efficient excited-state relaxation mechanism for a variety of nature-based and artificial-based molecular systems. Here we report on the excited-state relaxation dynamics and consequent photostability of a symmetrically functionalised cinnamate by transient electronic absorption spectroscopy, along with complementary computational and steady-state spectroscopy methods. The findings are then discussed in comparison to 2-ethylhexyl-E-4-methoxycinnamate, a structurally related ‘off the shelf’ chemical filter present in commercial sunscreens with a similar absorption profile. The present study allows for a like-for-like comparison beween 2-ethylhexyl-E-4-methoxycinnamate and the functionalised cinnamate, driven by the need to enhance solar protection across both the UVA and UVB regions of the electromagnetic spectrum.

Graphical abstract: The role of symmetric functionalisation on photoisomerisation of a UV commercial chemical filter

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Supplementary files

Article information


Submitted
19 Oct 2018
Accepted
17 Dec 2018
First published
31 Jan 2019

This article is Open Access

Phys. Chem. Chem. Phys., 2019,21, 14350-14356
Article type
Paper

The role of symmetric functionalisation on photoisomerisation of a UV commercial chemical filter

J. M. Woolley, J. S. Peters, M. A. P. Turner, G. J. Clarkson, M. D. Horbury and V. G. Stavros, Phys. Chem. Chem. Phys., 2019, 21, 14350
DOI: 10.1039/C8CP06536E

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    [Original citation] - Published by The Royal Society of Chemistry.

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