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Fluoride complexation of element 104, rutherfordium

104番元素ラザホージウムのフッ化物錯体

羽場 宏光*; 塚田 和明; 浅井 雅人; 豊嶋 厚史; 秋山 和彦; 西中 一朗; 平田 勝; 矢板 毅; 市川 進一; 永目 諭一郎; 安田 健一郎; 宮本 ユタカ; 金子 哲也; 後藤 真一*; 小野 佐和子*; 平井 利幸*; 工藤 久昭*; 重川 充*; 篠原 厚*; 大浦 泰嗣*; 中原 弘道*; 末木 啓介*; 菊永 英寿*; 木下 哲一*; 釣賀 直哉*; 横山 明彦*; 阪間 稔*; 榎本 秀一*; Sch$"a$del, M.*; Br$"u$chle, W.*; Kratz, J. V.*

Haba, Hiromitsu*; Tsukada, Kazuaki; Asai, Masato; Toyoshima, Atsushi; Akiyama, Kazuhiko; Nishinaka, Ichiro; Hirata, Masaru; Yaita, Tsuyoshi; Ichikawa, Shinichi; Nagame, Yuichiro; Yasuda, Kenichiro; Miyamoto, Yutaka; Kaneko, Tetsuya; Goto, Shinichi*; Ono, Sawako*; Hirai, Toshiyuki*; Kudo, Hisaaki*; Shigekawa, Mitsuru*; Shinohara, Atsushi*; Oura, Yasuji*; Nakahara, Hiromichi*; Sueki, Keisuke*; Kikunaga, Hidetoshi*; Kinoshita, Norikazu*; Tsuruga, Naoya*; Yokoyama, Akihiko*; Sakama, Minoru*; Enomoto, Shuichi*; Sch$"a$del, M.*; Br$"u$chle, W.*; Kratz, J. V.*

$$^{248}$$Cm($$^{18}$$O,5n)$$^{261}$$Rf反応で生成する104番元素ラザホージウム(Rf)のフッ化物錯体のイオン交換挙動を単一原子レベルで明らかにした。Rfの陰イオン交換挙動は、周期表同族元素であるジルコニウム(Zr)やハフニウム(Hf)の挙動とは明らかに異なることがわかり、Rfのフッ化物形成に相対論効果が寄与している可能性を指摘した。

Fluoride complexation of element 104, rutherfordium (Rf), produced in the $$^{248}$$Cm($$^{18}$$O,5n)$$^{261}$$Rf reaction has been studied by anion-exchange chromatography on an atom-at-a-time scale. The anion-exchangechromatographic behavior of Rf was investigated in 1.9-13.9 M hydrofluoric acid together with those of the group-4 elements Zr and Hf produced in the $$^{18}$$O-induced reactions on Ge and Gd targets, respectively. It was found that the adsorption behavior of Rf on anion-exchange resin is quite different from those of Zr and Hf, suggesting the influence of relativistic effect on the fluoride complexation of Rf.

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パーセンタイル:26.81

分野:Chemistry, Multidisciplinary

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