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Title: Isolation of the simplest hydrated acid
Authors: Zhang, Rui
Murata, Michihisa
Wakamiya, Atsushi  kyouindb  KAKEN_id
Shimoaka, Takafumi  kyouindb  KAKEN_id
Hasegawa, Takeshi
Murata, Yasujiro  kyouindb  KAKEN_id
Author's alias: 張, 鋭
村田, 理尚
若宮, 淳志
下赤, 卓史
長谷川, 健
村田, 靖次郎
Keywords: hydrogen fluoride
water
hydration
encapsulation
fullerene
open-cage fullerene
molecular surgery
single crystal x-ray analysis
NMR
Issue Date: 21-Apr-2017
Publisher: American Association for the Advancement of Science (AAAS)
Journal title: Science Advances
Volume: 3
Issue: 4
Thesis number: e1602833
Abstract: Dissociation of an acid molecule in aqueous media is one of the most fundamental solvation processes but its details remain poorly understood at the distinct molecular level. Conducting high-pressure treatments of an open-cage fullerene C70 derivative with hydrogen fluoride (HF) in the presence of H2O, we achieved an unprecedented encapsulation of H2O·HF and H2O. Restoration of the opening yielded the endohedral C70s, that is, (H2O·HF)@C70, H2O@C70, and HF@C70 in macroscopic scales. Putting an H2O·HF complex into the fullerene cage was a crucial step, and it would proceed by the synergistic effects of “pushing from outside” and “pulling from inside.” The structure of the H2O·HF was unambiguously determined by single crystal x-ray diffraction analysis. The nuclear magnetic resonance measurements revealed the formation of a hydrogen bond between the H2O and HF molecules without proton transfer even at 140°C.
Description: 一個の水分子により水和されたフッ化水素の単離に成功--水素結合を利用した電子デバイス材料の開発に期待--. 京都大学プレスリリース. 2017-04-24.
Rights: Copyright © 2017, The Authors This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
URI: http://hdl.handle.net/2433/220440
DOI(Published Version): 10.1126/sciadv.1602833
Related Link: http://www.kyoto-u.ac.jp/ja/research/research_results/2017/170422_1.html
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