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Journal Articles

The Photoelectron spectroscopic study of the hydrated complex of HONTA + HNO$$_{3}$$

Miyazaki, Yasunori; Adachi, Junichi*; Masuda, Ryotaro*; Gejo, Tatsuo*; Hoshino, Masamitsu*

Photon Factory Activity Report 2021 (Internet), 2 Pages, 2021/00

no abstracts in English

Journal Articles

Selective vibrational excitation in the resonant Auger decay following core-to-$$pi^*$$ transitions in N$$_2$$O

Travnikova, O.*; C$'e$olin, D.*; Bao, Z.*; B${o}$rve, K. J.*; Tanaka, Takahiro*; Hoshino, Masamitsu*; Kato, Hideki*; Tanaka, Hiroshi*; Harries, J.; Tamenori, Yusuke*; et al.

Journal of Electron Spectroscopy and Related Phenomena, 181(2-3), p.129 - 134, 2010/08

https://doi.org/10.1016/j.elspec.2010.05.006
 Times Cited Count：1 Percentile：7.38(Spectroscopy)

In N$$_2$$O a detailed study of the vibrational distribution of the state reached after decay of core-to-$$pi^*$$ excitation of N terminal, N central and O 1s core levels is reported. We observe a change in the relative intensity of bending versus stretching modes while scanning the photon energy across all three resonances. While this effect is known to be due to the Renner-Teller splitting in the core-excited states, we could derive that the antisymmetric stretching is excited mainly in the decay of the N terminal 1s-to-$$pi^*$$ excitation. An explanation for such selectivity is provided in terms of interplay of vibrational structure on potential energy surfaces of different electronic states involved in the process.

Journal Articles

Photoabsorption spectra of CF$$_3$$I and thermally dissociated CF$$_3$$I near the C 1s, I 3d and F 1s ionisation thresholds

Tanaka, Takahiro*; Hoshino, Masamitsu*; Kato, Hideki*; Harries, J.; Tamenori, Yusuke*; Ueda, Kiyoshi*; Tanaka, Hiroshi*

Journal of Electron Spectroscopy and Related Phenomena, 164(1-3), p.24 - 27, 2008/07

https://doi.org/10.1016/j.elspec.2008.04.004
 Times Cited Count：4 Percentile：24.52(Spectroscopy)

We report soft X-ray total ion yield and angular-resolved ion yield spectra of CF$$_3$$I in the C 1s, I 3d and F 1s ionisation regions, and tentatively assign the observed electronic states. Anisotropy in ion yield is observed only for the C 1s$$rightarrowsigma^*_{C-I}$$ transition, indicating that the dipole moment for this transition is parallel to the C$$_{3v}$$. The effusive source of CF$$_3$$I is heated to 800 K to produce a mixture of CF$$_3$$ and I, and the resulting spectra are compared to those recorded at room temperature to reveal the first information on the inner-shell excitation of CF$$_3$$.

Journal Articles

Experimental and theoretical elastic cross sections for electron collisions with the C$$_{3}$$H$$_{6}$$ isomers

Makochekanwa, C.*; Kato, Hidetoshi*; Hoshino, Masamitsu*; Tanaka, Hiroshi*; Kubo, Hirotaka; Bettega, M. H. F.*; Lopes, A. R.*; Lima, M. A. P.*; Ferreira, L. G.*

Journal of Chemical Physics, 124(2), p.024323_1 - 024323_9, 2006/00

https://doi.org/10.1063/1.2141950
 Times Cited Count：16 Percentile：48.34(Chemistry, Physical)

no abstracts in English

Oral presentation

Study on the electronic structure of HONTA for minor actinide separation

Masuda, Ryotaro*; Otaka, Saki*; Gejo, Tatsuo*; Takeuchi, Satoshi*; Adachi, Junichi*; Hoshino, Masamitsu*; Toigawa, Tomohiro; Miyazaki, Yasunori; Sano, Yuichi; Takeuchi, Masayuki

no journal, , 

no abstracts in English

Oral presentation

Study on the electronic structure of HMNTA as a model extractant for minor actinide recovery

Miyazaki, Yasunori; Sano, Yuichi; Takeuchi, Masayuki; Hoshino, Masamitsu*; Gejo, Tatsuo*; Adachi, Junichi*

no journal, , 

no abstracts in English

Oral presentation

The Synchrotron radiation study on the electronic structure of gold-plate HONTA by VUV and soft X-ray irradiations

Miyazaki, Yasunori; Hoshino, Masamitsu*; Gejo, Tatsuo*; Adachi, Junichi*; Takahashi, Osamu*

no journal, , 

${it N,N,N',N',N'',N''}$-hexaoctylnitrilotriacetamide (HONTA) is one of the extractants that form complexation with minor actinides (Am$$^{3+}$$, for example). The initial reaction of radiolysis, whether it is direct or indirect, is ionization of HONTA after interaction with electrons. In this study, VUV and soft X-ray were irradiated to HONTA on the gold plate, and the released electrons were energy analyzed and detected by SCIENTA to acquire the photoelectron spectra. The quantum chemical calculations were performed to evaluate the electronic structure and ionization energy of HONTA. For future works, these results will be applied to the molecular dynamics simulation in order to elucidate radiolysis.

Oral presentation

VUV photoelectron spectroscopy of urea molecules

Nagahiro, Minami*; Fujita, Taiki*; Miyazaki, Yasunori; Adachi, Junichi*; Hoshino, Masamitsu*

no journal, , 

no abstracts in English

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