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ESR studies of a new reactive species produced in γ-ray irradiated solid para-H2 at 4.2 K

✍ Scribed by Tetsuo Miyazaki; Kenji Yamamoto; Yasuyuki Aratono

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 204 KB
Volume: 232
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(94)01335-s

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✦ Synopsis

A new reactive species in "/-irradiated solid P-H2 has been studied by ESR. When P-H2 is irradiated at 4.2 K with 7-rays, a small amount of the new reactive species which shows doublet ESR lines with a separation of 12.4 G is observed in addition to intense peaks of H atoms. The yield of the new species is 0.0001 G-unit. The new species decays in several hours upon storage of the irradiated solid p-H2 at 4.2 K. The doublet lines were interpreted in terms of an ion-pair of an electron and a hole (e/-...p-Hf ) separated by 13 A.

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Experimental observation of H2− anions by high-resolution ESR spectroscopy in γ-ray irradiated quantum solid parahydrogen at 4.2 K

✍ Takayuki Kumada; Hirohisa Inagaki; Takao Nagasawa; Yasuyuki Aratono; Tetsuo Miya 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 269 KB

High-resolution ESR spectroscopy by use of quantum solid parahydrogen has been applied to the observation of H 2 anions. When solid parahydrogen is irradiated with ~/-rays at 4.2 K, H~-anions produced show ESR spectra of quartet lines with a hyperfine splitting constant of 203 G. H~-anions consist o