Please use this identifier to cite or link to this item: http://hdl.handle.net/2381/29270
Title: Electron-driven self-assembly of salt nanocrystals in liquid helium
Authors: Ellis, Andrew M.
Daxner, Matthias
Denifl, Stephan
Scheier, Paul
First Published: 6-Nov-2014
Publisher: Wiley-VCH Verlag GmbH & Co.
Citation: Angewandte Chemie International Edition, 2014, 126 (49), pp. 13746–13749.
Abstract: The self-assembly of salt nanocrystals from chemical reactions inside liquid helium is reported for the first time. Reaction is initiated by an electron impacting a helium nanodroplet containing sodium atoms and SF[suubscript 6] molecules, leading to preferential production of energetically favorable structures based on the unit cell of crystalline NaF. These favorable structures are observed as magic number ions (anomalously intense peaks) in mass spectra and are seen in both cationic and anionic channels in mass spectra, for example, (NaF)[subscript n]Na[superscript +] and (NaF)[subscript n]F[superscript −]. In the case of anions the self-assembly is not directly initiated by electrons: the dominant process involves resonant electron-induced production of metastable electronically excited He[superscript −] anions, which then initiate anionic chemistry by electron transfer.
DOI Link: 10.1002/ange.201409465
ISSN: 1433-7851
eISSN: 1521-3773
Links: http://onlinelibrary.wiley.com/doi/10.1002/ange.201409465/abstract
http://hdl.handle.net/2381/29270
Embargo on file until: 1-Jan-10000
Version: Post-print
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © 2014, Wiley-VCH Verlag GmbH & Co.
Description: Full text of this item is not currently available on the LRA. The final published version may be available through the links above.
Appears in Collections:Published Articles, Dept. of Chemistry

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