Infrared Spectroscopy of NaCl(CH3OH)n Complexes in Helium Nanodroplets

Sadoon, Ahmed M., Sarma, Gautam, Cunningham, Ethan M., Tandy, Jon, Hanson-Heine, Magnus W. D., Besley, Nicholas A., Yang, Shengfu, Ellis, Andrew M. (2016) Infrared Spectroscopy of NaCl(CH3OH)n Complexes in Helium Nanodroplets. The Journal of Physical Chemistry A, 120 (41). pp. 8085-8092. ISSN 1089-5639. (doi:10.1021/acs.jpca.6b06227) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:92323)

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Official URL: https://doi.org/10.1021/acs.jpca.6b06227

Abstract

Infrared (IR) spectra of complexes between NaCl and methanol have been recorded for the first time. These complexes were formed in liquid helium nanodroplets by consecutive pick-up of NaCl and CH3OH molecules. For the smallest NaCl(CH3OH)n, complexes where n = 1–3, the IR data suggest that the lowest-energy isomer is the primary product in each case. The predominant contribution to the binding comes from ionic hydrogen bonds between the OH in each methanol molecule and the chloride ion in the NaCl, as established by the large red shift of the OH stretching bands compared with the isolated CH3OH molecule. For n ≥ 4, there is a dramatic shift from discrete vibrational bands to very broad absorption envelopes, suggesting a profound change in the structural landscape and, in particular, access to multiple low-energy isomers.

Item Type:	Article
DOI/Identification number:	10.1021/acs.jpca.6b06227
Subjects:	Q Science > QD Chemistry > QD473 Physical properties in relation to structure Q Science > QD Chemistry > Analytical Chemistry
Institutional Unit:	Schools > School of Natural Sciences > Chemistry and Forensic Science
Former Institutional Unit:	There are no former institutional units.
Funders:	Leverhulme Trust (https://ror.org/012mzw131) Engineering and Physical Sciences Research Council (https://ror.org/0439y7842)
Depositing User:	Jon Tandy
Date Deposited:	10 May 2026 19:34 UTC
Last Modified:	20 May 2026 11:35 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/92323 (The current URI for this page, for reference purposes)

University of Kent Author Information

Tandy, Jon.

Creator's ORCID:	https://orcid.org/0000-0002-0772-9182
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