2016年5月1日
Synthesis of a distinct water dimer inside fullerene C70
Nature Chemistry
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- 巻
- 8
- 号
- 5
- 開始ページ
- 435
- 終了ページ
- 441
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1038/nchem.2464
- 出版者・発行元
- Nature Publishing Group
The water dimer is an ideal chemical species with which to study hydrogen bonds. Owing to the equilibrium between the monomer and oligomer structure, however, selective generation and separation of a genuine water dimer has not yet been achieved. Here, we report a synthetic strategy that leads to the successful encapsulation of one or two water molecules inside fullerene C70. These endohedral C70 compounds offer the opportunity to study the intrinsic properties of a single water molecule without any hydrogen bonding, as well as an isolated water dimer with a single hydrogen bond between the two molecules. The unambiguously determined off-centre position of water in (H2O)2@C70 by X-ray diffraction provides insights into the formation of (H2O)2@C70. Subsequently, the 1 H NMR spectroscopic measurements for (H2O)2@C70 confirmed the formation of a single hydrogen bond rapidly interchanging between the encapsulated water dimer. Our theoretical calculations revealed a peculiar cis-linear conformation of the dimer resulting from confinement effects inside C70.
- リンク情報
- ID情報
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- DOI : 10.1038/nchem.2464
- ISSN : 1755-4349
- ISSN : 1755-4330
- eISSN : 1755-4349
- PubMed ID : 27112631
- SCOPUS ID : 84964558146
- Web of Science ID : WOS:000374534100010