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Title:INFRARED PHOTODISSOCIATION SPECTROSCOPY OF THE EXOTIC H6+ CATION IN THE GAS PHASE
Author(s):McDonald II, David C
Contributor(s):Duncan, Michael A.; Wagner, J. Philipp
Subject(s):Mini-symposium: New Ways of Understanding Molecular Spectra
Abstract:H$_{6}$$^{+}$ is generated in a supersonic expansion via pulsed electrical discharge of hydrogen. H$_{n}$$^{+}$ clusters are extracted into a reflectron time-of-flight mass spectrometer and probed with infrared photodissociation spectroscopy (IRPD) in the 2050 – 4600 cm$^{-1}$ region. H$_{6}$$^{+}$ was mass selected and found to have three distinct photodissociation channels by loss of one hydrogen atom, one hydrogen molecule or both. Each channel results in different spectra as a result of mode specific dissociation channels. The ground $^{2}$D$_{2d}$ state is 4 kcal/mol lower in energy than the $^{2}$c$_{S}$ state with a 7 kcal/mol barrier. We believe we are probing the $^{2}$D$_{2d}$ structure with the three H$_{m}$$^{+}$ (m=3,4,5) fragment channels as a result of rapid interconversion between the two states after IR photon absorption.
Issue Date:06/19/18
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:APS
Genre:Conference Paper / Presentation
Type:Text
Language:English
URI:http://hdl.handle.net/2142/100474
DOI:10.15278/isms.2018.TH08
Other Identifier(s):TH08
Date Available in IDEALS:2018-08-17
2018-12-12


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