INFRARED SPECTROSCOPY OF COLD, HYDRATED ALKALINE EARTH-HYDROXIDE CLUSTERS
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Date
2012
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Hydrated, singly-charged [MOH]$^+$ (M=Mg,Ca) clusters have been investigated using mass-selective cryogenic infrared spectroscopy. Spectra of [MOH]$^+\cdot$ (H$_2$O)$_n$ reveal broad features beginning at $n=3$ that approach 1000 cm$^{-1}$ in width at $n=5$, indicative of large amplitude motion in the water network despite ion temperatures below 40 K. Comparison to calculated structures and spectra help to elucidate the structural and charge-separation dynamics occurring in these clusters.
Description
Author Institution: Department of Chemistry, Yale University, New Haven, CT 06520