STUDY OF LARGE MOLECULAR CLUSTERS IN He DROPLETS
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Date
2004
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
The rotationally resolved spectra of the $\nu_{3}$ vibrational mode of $(CH_{4})_{n} (n=1-2 \times 10^{3})$ clusters in He droplets have been measured. With increasing of the cluster size the effective rotational constant of the $CH_{4}$ molecules in the cluster decreases and for $n > 500$ the rotational structure collapses. This behavior suggests gradual quenching of the internal rotation of the $CH_{4}$ molecules upon increase of the cluster size.
Description
Author Institution: Department of Chemistry, University of Southern California