Infrared photodissociation spectroscopy of the exotic H6+ cation in the gas phase
McDonald II, David C
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https://hdl.handle.net/2142/100474
Description
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
Issue Date
2018-06-19
Keyword(s)
Mini-symposium: New Ways of Understanding Molecular Spectra
Abstract
H6 + is generated in a supersonic expansion via pulsed electrical discharge of hydrogen. Hn + 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. H6 + 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 2D2d state is 4 kcal/mol lower in energy than the 2 cS state with a 7 kcal/mol barrier. We believe we are probing the 2D2d structure with the three Hm + (m=3,4,5) fragment channels as a result of rapid interconversion between the two states after IR photon absorption.
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