Electron spin resonance study on H $_{6}$ $^{+}$ , H $_{5}$ D $^{+}$ , H $_{4}$ D $_{2}$ $^{+}$ , and H $_{2}$ D $_{4}$ $^{+}$ in solid parahydrogen

Kumagai, Jun*; Inagaki, Hiroshi*; Kariya, Susumu*; Ushida, Takahiro*; Shimizu, Yuta*; Kumada, Takayuki

We carried out an electron spin resonance (ESR) study on hydrogen ion radicals produced by radiolysis of solid parahydrogen. In addition to quartet ESR lines proposed to be H $_{2}$ $^{+}$ -core H $_{6}$ $^{+}$ ions in solid parahydrogen, we newly observed totally more than fifty resolved lines in -ray irradiated solid para-H $_{2}$ -ortho-D $_{2}$ (1 mol %) and para-H $_{2}$ -HD (1 mol %) mixtures. We assigned these lines to be isotope substituents of H $_{2}$ $^{+}$ -core H $_{6}$ $^{+}$ ions such as H $_{5}$ D $^{+}$ , H $_{4}$ D $_{2}$ $^{+}$ , and H $_{2}$ D $_{4}$ $^{+}$ throughout comparison of their ESR parameters with theoretical results.

Language	:	English
Journal	:	Journal of Chemical Physics
Volume	:	127
Number	:	2
Pages	:	p.024505_1 - 024505_13
Publication Year/Month	:	2007/07
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Paper URL	:	https://doi.org/10.1063/1.2748046
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Keywords	:	no keyword
Research Facility	:	第4研究棟
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Registration No. : AA20090433
JAEA Abstracts No. : 37001481
Paper Submission No. : 6480

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Electron spin resonance study on H, HD, HD, and HD in solid parahydrogen

Electron spin resonance study on H $_{6}$ $^{+}$ , H $_{5}$ D $^{+}$ , H $_{4}$ D $_{2}$ $^{+}$ , and H $_{2}$ D $_{4}$ $^{+}$ in solid parahydrogen