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Infrared Spectrum of p-Hydrogen Crystals Ionized by 3 MeV Electrons: Cluster Ions of Hydrogen in Condensed Phase

Chan, Man-Chor and Okumura, Mitchio and Oka, T. (2000) Infrared Spectrum of p-Hydrogen Crystals Ionized by 3 MeV Electrons: Cluster Ions of Hydrogen in Condensed Phase. Journal of Physical Chemistry A, 104 (16). pp. 3775-3779. ISSN 1089-5639. doi:10.1021/jp993890h.

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High purity p-H_2 crystals have been ionized by 3 MeV electron beams from a van de Graaff accelerator, and their infrared spectra have been studied from 1800 to 8000 cm^(-1) using a Fourier transform infrared spectrometer. Out of 16 spectral lines induced by the electron bombardment, 5 lines have been assigned to p-H_2 spectral lines that are induced by the electric field of charges deposited in the ionized crystal. The stability of such spectral lines several hours after electron bombardment demonstrates the stability of charges in the crystal. A mechanism of stabilization of positive and negative charges as cation clusters H_3^+(H_2)_n and anion clusters H^-(H_2)_n, respectively, is proposed.

Item Type:Article
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Okumura, Mitchio0000-0001-6874-1137
Additional Information:© 2000 American Chemical Society. Received 3 November 1999. Published online 17 March 2000. Published in print 1 April 2000. We would like to thank R. H. Lowers and A. D. Trifurnac of the Argonne National Laboratory for arrangement and operation of the van de Graaff accelerator. We are grateful to S. S. Lee, K. Takagi, S. Kurokawa and D. P. Weliky for their assistance during the experiment and to T. Momose for discussions. M.C.C. acknowledges the graduate scholarship from the United College, the Chinese University of Hong Kong. This work was supported by the Air Force Grant No. F49620-94-1-0145 and NSF PHYS-9722691.
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Air Air Force Office of Scientific Research (AFOSR)F49620-94-1-0145
Issue or Number:16
Record Number:CaltechAUTHORS:20170719-133035534
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Official Citation:Infrared Spectrum of p-Hydrogen Crystals Ionized by 3 MeV Electrons:  Cluster Ions of Hydrogen in Condensed Phase Man-Chor Chan, Mitchio Okumura, and T. Oka The Journal of Physical Chemistry A 2000 104 (16), 3775-3779 DOI: 10.1021/jp993890h
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:79212
Deposited By: Ruth Sustaita
Deposited On:19 Jul 2017 20:58
Last Modified:15 Nov 2021 17:46

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