Statistics – Computation
Scientific paper
Jun 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009mss..confemg08b&link_type=abstract
"International Symposium On Molecular Spectroscopy, 64th Meeting, Held 22-26 June, 2009 at Ohio State University. http://molspec
Statistics
Computation
Infrared/Raman
Scientific paper
Magic number clusters are clusters that appear with anomalously large intensity compared to their neighbors in mass spectra. Experimental and computational studies of magic number clusters have gained much attention in recent years. The prevailing hypothesis of the origin of the magic numbers is that the clusters form 3D nanoscale cages where all the waters are three or four-coordinated. In order to determine the importance of having only three or four-coordinated waters, we have performed infrared predissociation (IRPD) spectroscopic experiments in the free OH region of water. We investigated the magic number M^+(H_2O)_{20} clusters, where M=Cs, K, H_3O. These spectra are compared with spectra of non-magic clusters and anti-magic clusters. We found evidence of two-coordinated waters in magic number clusters. These results indicate that the formation of a nanoscale water cage is not an important factor in the origin of magic numbers.
Beck Jordan P.
Lisy James M.
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