Conversion of Ag0into Ag2+inγ-Irradiated Organic Solid Solutions at 77 K as Studied by ESR

Autor:	Kaoru Matsuura, Shigeyoshi Arai, Yoko Miyatake, Hirotomo Hase, Mikio Hoshino
Rok vydání:	1999
Předmět:	chemistry.chemical_compound Ethanol chemistry Dimer Yield (chemistry) Inorganic chemistry Qualitative inorganic analysis General Chemistry Irradiation Thermal diffusivity Silver perchlorate Solid solution
Zdroj:	Bulletin of the Chemical Society of Japan. 72:363-366
ISSN:	1348-0634 0009-2673
DOI:	10.1246/bcsj.72.363
Popis:	Ethanol and 2-methyltetrahydrofuran (MTHF) solutions of silver perchlorate were irradiated with γ-rays at 77 K. Two kinds of silver atoms (Ag0) and a small amount of dimer cations (Ag2+) were formed in both solids immediately after irradiation. On storing at 77 K, both Ag0 species reacted with Ag+ to form Ag2+ in ethanol, while in MTHF only the minor Ag0 species reacted, resulting in less growth of Ag2+ yield than in ethanol. The mechanism for the formation of Ag2+ has been discussed in terms of thermal diffusion and quantum tunneling.
Databáze:	OpenAIRE
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