Oxidation of trivalent americium in nitric acid induced by multiphoton excitation via an f-f transition

Matsuda, Shohei ; Yokoyama, Keiichi ; Yaita, Tsuyoshi; Kobayashi, Toru ; Nakashima, Nobuaki*

We have recently realized the oxidation of trivalent americium (Am $^{III}$ ) in nitric acid by multiphoton excitation via an f-f transition. In this study, an effect of nitrate ion (NO $_{3}$ $^{-}$ ) on the Am $^{III}$ photooxidation have been investigated. Our results of NO $_{3}$ $^{-}$ activity dependence of the Am $^{III}$ photooxidation and density functional theory calculation indicate that the complex of Am $^{III}$ with NO $_{3}$ $^{-}$ , in particular one-nitrate complex, contributes to it.

Language	:	Japanese
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Meeting title	:	2021年光化学討論会
Held date	:	2021/09
Location (city)	:	新潟(online)
Location (country)	:	日本
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Keywords	:	no keyword
Research Facility	:	第4研究棟 ;SPring-8(大型放射光施設)
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Registration No. : BB20210457
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