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  Wetting Camphor: Multi-Isotopic Substitution Identifies the Complementary Roles of Hydrogen Bonding and Dispersive Forces

Pérez, C., Krin, A., Steber, A. L., López, J. C., Kisiel, Z., & Schnell, M. (2016). Wetting Camphor: Multi-Isotopic Substitution Identifies the Complementary Roles of Hydrogen Bonding and Dispersive Forces. The Journal of Physical Chemistry Letters, 7(1), 154-160. doi:10.1021/acs.jpclett.5b02541.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-4DC2-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-4DC3-E
Genre: Journal Article

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http://dx.doi.org/10.1021/acs.jpclett.5b02541 (Publisher version)
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 Creators:
Pérez, Cristóbal1, 2, Author              
Krin, Anna1, 2, Author              
Steber, Amanda L.1, 2, 3, Author              
López, Juan C.1, 4, Author
Kisiel, Zbigniew5, Author
Schnell, Melanie1, 2, 3, Author              
Affiliations:
1Structure and Dynamics of Cold and Controlled Molecules, Independent Research Groups, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938292              
2Center for Free-Electron Laser Science, D-22761 Hamburg, Germany, ou_persistent22              
3The Hamburg Centre for Ultrafast Imaging at the University of Hamburg, D-22761 Hamburg, Germany, ou_persistent22              
4Departamento de Quimica Fisica y Quimica Inorganica, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid, Spain, ou_persistent22              
5Institute of Physics, Polish Academy of Sciences, 02-668 Warszawa, Poland, ou_persistent22              

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 Abstract: Using broadband rotational spectroscopy, we report here on the delicate interplay between hydrogen bonds and dispersive forces when an unprecedentedly large organic molecule (camphor, C10H16O) is microsolvated with up to three molecules of water. Unambiguous assignment was achieved by performing multi H218O isotopic substitution of clustered water molecules. The observation of all possible mono- and multi-H218O insertions in the cluster structure yielded accurate structural information that is not otherwise achievable with single-substitution experiments. The observed clusters exhibit water chains starting with a strong hydrogen bond to the C═O group and terminated by a mainly van der Waals (dispersive) contact to one of the available sites at the monomer moiety. The effect of hydrogen bond cooperativity is noticeable, and the O···O distances between the clustered water subunits decrease with the number of attached water molecules. The results reported here will further contribute to reveal the hydrophobic and hydrophilic interactions in systems of increasing size.

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Language(s): eng - English
 Dates: 2015-11-122015-12-212015-12-212016-01-07
 Publication Status: Published in print
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1021/acs.jpclett.5b02541
 Degree: -

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Title: The Journal of Physical Chemistry Letters
  Other : J. Phys. Chem. Lett.
  Abbreviation : JPCLett
Source Genre: Journal
 Creator(s):
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 7 (1) Sequence Number: - Start / End Page: 154 - 160 Identifier: CoNE: https://pure.mpg.de/cone/journals/resource/1948-7185