SPECTROSCOPIC PROBES OF THERMAL EXCITATIONS IN LIQUID HELIUM
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Date
2003
Journal Title
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Publisher
Ohio State University
Abstract
We have shown in previous studies that linear chains of HCN can be formed by cluster growth in helium nanodroplets. Although these clusters are linear, the parallel vibrational band s associated with the C-H stretches of many of them show strong Q branches, suggesting that the moment of inertia about the molecular axis is significant. The experimental spectra f or these systems are discussed in the context of recent theoretical calculations, using pat h integral methods, which show that the helium near the cluster can be thermally excited an d thus contribute to the moment of inertia about the axis of the cluster
Description
Author Institution: Lawrence Livermore National Laboratory; Department of Chemistry, Princeton University; Department of Chemistry, University of North Carolina at Chapel Hill