IR SPECTROSCOPY STUDY ON THE (HCl)$_{n}$(H$_{2}$O)$_{m}$ AGGREGATION IN HELIUM NANODROPLETS
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Date
2011
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Publisher
Ohio State University
Abstract
The study of acid-water clusters is an active area of research due to its fundamental importance for chemistry$^,$, Int. Rev. Phys. Chem. 21, 277 (2002).}. In particular the (HCl)$_{n}$(H$_{2}$O)$_{m}$ clusters have been extensively investigated both theoretically and experimentally as a benchmark system. Despite of the great effort devoted to its understanding HCl dissociation in water clusters is still not well understood. An IR-Spectroscopy study on (HCl)$_{n}$(H$_{2}$O)$_{m}$ embedded in helium nanodroplets will be presented. The H$_{2}^{16}$O$\rightarrow$H$_{2}^{18}$O and isotopic substitution was used in the experiments to probe the bands in the 2650-2760 cm$^{-1}$ spectral range which has been object of some debate recently, Science 324, 1545 (2009).}$^,$, Phys. Chem. Lett. 1, 2233 (2010).}. The observed isotopic shifts for the different bands raise some new questions to be addressed.
Description
Author Institution: Department of Physical Chemistry II, Ruhr-Universitat Bochum, Germany