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

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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.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science, Engineering and Medicine > Science > Chemistry
Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH): Photoisomerization, Ultraviolet radiation
Journal or Publication Title: Physical Chemistry Chemical Physics
Publisher: Royal Society of Chemistry
ISSN: 1463-9076
Official Date: 14 July 2019
Dates:
Date
Event
14 July 2019
Published
31 January 2019
Available
17 December 2018
Accepted
Volume: 21
Number: 26
Page Range: pp. 14350-14356
DOI: 10.1039/C8CP06536E
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons open licence)
Date of first compliant deposit: 18 December 2018
Date of first compliant Open Access: 10 April 2019
Funder:
RIOXX Funder/Project Grant:
Project/Grant ID
RIOXX Funder Name
Funder ID
EP/L015307/1
[EPSRC] Engineering and Physical Sciences Research Council
EP/N010825
[EPSRC] Engineering and Physical Sciences Research Council
UNSPECIFIED
[RS] Royal Society
UNSPECIFIED
Leverhulme Trust
Related URLs:
URI: https://wrap.warwick.ac.uk/112013/

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