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Journal Articles

Endohedral clusterization of ten water molecules into a "molecular ice" within the hydrophobic pocket of a self-assembled cage

Yoshizawa, Michito*; Kusukawa, Takahiro*; Kawano, Masaki*; Ohara, Takashi; Tanaka, Ichiro*; Kurihara, Kazuo; Niimura, Nobuo*; Fujita, Makoto*

Journal of the American Chemical Society, 127(9), p.2798 - 2799, 2005/03

https://doi.org/10.1021/ja043953w
 Times Cited Count：273 Percentile：97.04(Chemistry, Multidisciplinary)

An adamantanoid (H$$_{2}$$O)10 cluster is formed within the hydrophobic cavity of a self-assembled coordination cage. This cluster is termed "molecular ice" because it is the smallest unit of naturally occurring Ic-type ice. X-ray structural analysis, coupled with neutron diffraction study, reveals that the molecular ice is formed not by a simple space-filling effect but by efficient molecular recognition within the cage via H$$_{2}$$O:...pi interaction.

Journal Articles

Hardening of Fe-Cu model alloys induced by electron irradiation and neutron irradiation

Tobita, Toru; Aizawa, Kazuya; Suzuki, Masahide; Iwase, Akihiro*

Nihon Genshiryoku Gakkai Wabun Rombunshi, 3(4), p.331 - 339, 2004/12

https://doi.org/10.3327/taesj2002.3.331

Nevertheless, there is a possibility that $$gamma$$-ray induces embrittlement more efficiently than fast neutron, the irradiation effect of $$gamma$$-ray has not been fully clarified. Comparative experiments on irradiation hardening by 2.5MeV electron irradiation for the purpose of $$gamma$$-ray irradiation and neutron irradiation were performed to the Fe-Cu model alloys. We obtained the dose dependence and the temperature dependence on irradiation induced hardening. The growth of Cu clusters with increase in irradiation dose was confirmed by the small angle neutron scattering measurements. Although the differences in hardening between electron and neutron irradiations were very small on a displacement-per-atom (dpa) basis, the electron irradiation hardening initiated slightly earlier than the neutron. The growth of Cu clusters with increase in irradiation dose was the principal cause of hardening. The present results suggested that, from an engineering point of view, both the $$gamma$$-ray induced and neutron induced hardening can be well scaled by using dpa.

Journal Articles

Structure and energetics of Li$$_{n}$$(OH)$$_{n-1}$$(n=2-5) clusters deduced from photoionization efficiency curves

Tanaka, Hiromasa; Yokoyama, Keiichi; Kudo, Hiroshi*

Journal of Chemical Physics, 114(1), p.152 - 159, 2001/01

https://doi.org/10.1063/1.1329645
 Times Cited Count：5 Percentile：14.71(Chemistry, Physical)

no abstracts in English

Journal Articles

Ionization energies of hyperlithiated and electronically segregated isomers of Li$$_{n}$$(OH)$$_{n-1}$$(n=2-5) clusters

Tanaka, Hiromasa*; Yokoyama, Keiichi; Kudo, Hiroshi*

Journal of Chemical Physics, 113(5), p.1821 - 1830, 2000/08

https://doi.org/10.1063/1.481986
 Times Cited Count：15 Percentile：41.99(Chemistry, Physical)

no abstracts in English

Journal Articles

Ammoniated ammonium ions studied theoretically and experimentally, ab initio calculation and tandem mass spectrometer experiments

Ikezoe, Yasumasa; Suzuki, Kazuya

Journal of the Mass Spectrometry Society of Japan, 48(4), p.254 - 262, 2000/04

https://doi.org/10.5702/massspec.48.254

no abstracts in English

Journal Articles

Molecular-dynamics simulations of uranium microclusters

Erkoc, S.*; Bastug, T.*; Hirata, Masaru; Tachimori, Shoichi

Journal of the Physical Society of Japan, 68(2), p.440 - 445, 1999/02

https://doi.org/10.1143/JPSJ.68.440

no abstracts in English

JAEA Reports

Formation and decomposition of ammoniated ammonium ions

Ikezoe, Yasumasa; Suzuki, Kazuya; Nakashima, Mikio; Yokoyama, Atsushi; Shiraishi, Hirotsugu; Ono, Shinichi*

JAERI-Research 98-051, 43 Pages, 1998/09

JAERI-Research-98-051.pdf:1.63MB

no abstracts in English

Journal Articles

Ions in carbon dioxide at an atmospheric pressure, 3; Formation of($$^{1}$$$$^{8}$$O$$_{2}$$(CO)$$_{2}$$)$$^{+}$$(CO$$_{2}$$)$$_{n}$$ in a CO$$_{2}$$-CO-$$^{1}$$$$^{8}$$O$$_{2}$$ mixture

Ikezoe, Yasumasa; ; Shimizu, Saburo; ; ;

J.Phys.Chem., 88(24), p.5945 - 5948, 1984/00

no abstracts in English

Journal Articles

Ionic reactions in an atmospheric pressure carbon dioxide; Their implications to the radiolysis of carbon dioxide

Ikezoe, Yasumasa; ;

Shitsuryo Bunseki, 32(5), p.449R - 453R, 1984/00

no abstracts in English

Journal Articles

Ions in carbon dioxide at an atmospheric pressure

Ikezoe, Yasumasa; Shimizu, Saburo; ; ; ;

Radiation Physics and Chemistry, 20(4), p.253 - 257, 1982/00

no abstracts in English

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