Structure of the ethylammonium nitrate surface: an X-ray reflectivity and vibrational sum frequency spectroscopy study | NOVA. The University of Newcastle's Digital Repository

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/927800

Title: Structure of the ethylammonium nitrate surface: an X-ray reflectivity and vibrational sum frequency spectroscopy study
Author/Creator: Niga, Petru; Wakeham, Deborah; Nelson, Andrew; Warr, Gregory G.; Rutland, Mark; Atkin, Rob
Institution: The University of Newcastle. Faculty of Science & Information Technology, School of Environmental and Life Sciences
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.
Relation: Langmuir Vol. 26, Issue 11, p. 8282-8288
Publisher Link: http://dx.doi.org/10.1021/la904697g
Date: 2010
Publisher: American Chemical Society
Keyword(s): X-ray reflectivity; vibrational sum frequency; ethylammonium nitrate (EAN); air interface; spectroscopy
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.13/927800
Identifier: ISSN:0743-7463

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