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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 23, Number 2
BKCSDE 23(2)
February 20, 2002 

Fluorescence Excitation Spectroscopy of Octatetraene-Xe van der Waals Clusters
Taek-Soo Kim, Kyo-Won Choi, Sang Kyu Kim, Young S. Choi, Sung-Woo Park, Doo-Sik Ahn, Sungyul Lee, Keitaro Yoshihara
Octatetraene, Spectroscopy, Cluster, Fluorescence.
Fluorescence excitation spectrum of the trans,trans-1,3,5,7-octatetraene(OT)-Xe van der Waals clusters formed in supersonic jet expansions has been obtained. The transition lines corresponding to the van der Waals clusters of OT with Xe are observed in the lower frequency side of the OT band origin. Based on the spectral shifts, fluorescence lifetimes, and concentration dependence of the peak intensities, most of the transition lines are assigned to the OT-Xen (n = 1, 2, 3, 4) clusters. Long progressions of a van der Waals vibrational mode are observed for n = 1, 2, 3 and 4 clusters and assigned to rocking of the OT moiety with respect to the Xe atom with the help of ab initio quantum mechanical calculation.
195 - 200
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