The Open UniversitySkip to content
 

VUV spectroscopy of an electron irradiated benzene : carbon dioxide interstellar ice analogue

James, Rachel L.; Jones, Nykola C.; Hoffmann, Søren V. and Dawes, Anita (2019). VUV spectroscopy of an electron irradiated benzene : carbon dioxide interstellar ice analogue. RSC Advances, 9(10) pp. 5453–5459.

Full text available as:
[img]
Preview
PDF (Version of Record) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (944kB) | Preview
DOI (Digital Object Identifier) Link: https://doi.org/10.1039/c9ra00462a
Google Scholar: Look up in Google Scholar

Abstract

We present the first vacuum ultraviolet spectroscopic study of an interstellar ice analogue of a 1 : 100 benzene (C6H6) : carbon dioxide (CO2) mixture which has been energetically processed with 1 keV electrons. We have exploited the fact that benzene has a relatively high photoabsorption cross section in the vacuum ultraviolet region to study this dilute mixture of benzene. Before irradiation with 1 keV electrons, we observed that the benzene electronic transition bands in the C6H6 : CO2 mixture exhibits a blueshift in band position towards energies observed in the gas-phase compared with that of pure, amorphous benzene and we have attributed this to a matrix isolation effect. After irradiation, a lowering in intensity of both the carbon dioxide and benzene electronic transition bands was observed, as well as the formation of the small irradiation product, carbon monoxide. A residue was obtained at 200 K which showed characteristic features of the benzene electronic transition of 1E1u1A1g, but with additional structure suggesting the formation of a benzene derivative.

Item Type: Journal Item
Copyright Holders: 2019 The Royal Society of Chemistry
ISSN: 2046-2069
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 59251
SWORD Depositor: Jisc Publications-Router
Depositing User: Jisc Publications-Router
Date Deposited: 25 Feb 2019 11:25
Last Modified: 31 Mar 2019 05:25
URI: http://oro.open.ac.uk/id/eprint/59251
Share this page:

Metrics

Altmetrics from Altmetric

Citations from Dimensions

Download history for this item

These details should be considered as only a guide to the number of downloads performed manually. Algorithmic methods have been applied in an attempt to remove automated downloads from the displayed statistics but no guarantee can be made as to the accuracy of the figures.

Actions (login may be required)

Policies | Disclaimer

© The Open University   contact the OU