- Title
- Structure of the ethylammonium nitrate surface: an X-ray reflectivity and vibrational sum frequency spectroscopy study
- Creator
- Niga, Petru; Wakeham, Deborah; Nelson, Andrew; Warr, Gregory G.; Rutland, Mark; Atkin, Rob
- Relation
- Langmuir Vol. 26, Issue 11, p. 8282-8288
- Publisher Link
- http://dx.doi.org/10.1021/la904697g
- Publisher
- American Chemical Society
- Resource Type
- journal article
- Date
- 2010
- Description
- X-ray reflectivity and vibrational sum frequency spectroscopy are used to probe the structure of the ethylammonium nitrate (EAN)−air interface. X-ray reflectivity reveals that the EAN−air interface is structured and consists of alternating nonpolar and charged layers that extend 31 Å into the bulk. Vibrational sum frequency spectroscopy reveals interfacial cations have their ethyl moieties oriented toward air, with the CH₃ C₃ axis positioned 36.5° from interface normal. This structure is invariant between 15 and 51 °C. On account of its molecular symmetry, the orientation of the nitrate anion cannot be determined with certainty.
- Subject
- X-ray reflectivity; vibrational sum frequency; ethylammonium nitrate (EAN); air interface; spectroscopy
- Identifier
- http://hdl.handle.net/1959.13/927800
- Identifier
- uon:10252
- Identifier
- ISSN:0743-7463
- Rights
- This document is the Accepted Manuscript version of a Published Work that appeared in final form in Langmuir, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/la904697g
- Language
- eng
- Full Text
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