Heat capacities of mass selected deprotonated water clusters.

J Chem Phys

Université de Toulouse, UPS, Laboratoire Collisions Agrégats Réactivité, IRSAMC, F-31062 Toulouse, France and CNRS, UMR 5589, F-31062 Toulouse, France.

Published: January 2013

Heat capacities of mass selected deprotonated water clusters (H(2)O)(n-1)OH(-) have been measured in the size range n = 48-118, as a function of temperature. We have found that they undergo a melting-like transition in the range 110-130 K. The transition temperature is size dependent with a strong correlation with the dissociation energy around the shell closure at n = 55.

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http://dx.doi.org/10.1063/1.4774408DOI Listing

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