15min:
INFRARED SPECTROSCOPY OF SIZE-SELECTED PROTONATED MOLECULAR CLUSTERS: (N2)nH+, (CO)nH+, AND ((CH3)2CO)nH+.

ALLEN M. RICKS, GARY E. DOUBERLY AND MICHAEL A. DUNCAN, Department of Chemistry, University of Georgia, Athens, Georgia 30602.

Cold, rare gas tagged, gas phase protonated molecular clusters are produced in a pulsed electric discharge supersonic expansion cluster source. The infrared spectra of the size-selected species are obtained via infrared photodissociation spectroscopy. The structure and spectroscopy (700-4000 cm-1) of the monomers and dimers of protonated nitrogen, carbon monoxide and acetone will be discussed.