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A single molecule of water encapsulated in fullerene C₆₀.

Many of the unusual properties of water stem from its ability to form networks through hydrogen bonding. In most cases, where water is confined, it can still interact with other elements through hydrogen bonds. Kurotobi and Murata (p. 613; see the Perspective by Balch) isolated single water molecule... Full description

Journal Title: Science (New York N.Y.), July 29, 2011, Vol.333(6042), pp.613-616
Main Author: Kurotobi, Kei
Other Authors: Murata, Yasujiro
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1095-9203 ; DOI: 1095-9203 ; DOI: 10.1126/science.1206376
Link: http://search.proquest.com/docview/880139005/?pq-origsite=primo
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title: A single molecule of water encapsulated in fullerene C₆₀.
format: Article
creator:
  • Kurotobi, Kei
  • Murata, Yasujiro
subjects:
  • Molecules
  • Water
  • Hydrogen Bonds
ispartof: Science (New York, N.Y.), July 29, 2011, Vol.333(6042), pp.613-616
description: Many of the unusual properties of water stem from its ability to form networks through hydrogen bonding. In most cases, where water is confined, it can still interact with other elements through hydrogen bonds. Kurotobi and Murata (p. 613; see the Perspective by Balch) isolated single water molecules inside what should have been a highly hydrophobic environment--a C60 molecule. At relatively high temperatures and water-vapor pressures, an open-cage C60 derivative was quantitatively filled with one water molecule. Closing of the opening restored the C60 framework, encapsulating single water molecules. Access to bulk quantities of isolated water molecules may enable studies into the influence of hydrogen bonding on its properties. Water normally exists in hydrogen-bonded environments, but a single molecule of H2O without any hydrogen bonds can be completely isolated within the confined subnano space inside fullerene C60. We isolated bulk quantities of such a molecule by first synthesizing an open-cage C60 derivative whose opening can be enlarged in situ at 120°C that quantitatively encapsulated one water molecule under the high-pressure conditions. The relatively simple method was developed to close the cage and encapsulate water. The structure of H2O@C60 was determined by single-crystal x-ray analysis, along with its physical and spectroscopic properties. [PUBLICATION ]
language: eng
source:
identifier: E-ISSN: 1095-9203 ; DOI: 1095-9203 ; DOI: 10.1126/science.1206376
fulltext: fulltext
issn:
  • 10959203
  • 1095-9203
url: Link


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titleA single molecule of water encapsulated in fullerene C₆₀.
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descriptionMany of the unusual properties of water stem from its ability to form networks through hydrogen bonding. In most cases, where water is confined, it can still interact with other elements through hydrogen bonds. Kurotobi and Murata (p. 613; see the Perspective by Balch) isolated single water molecules inside what should have been a highly hydrophobic environment--a C60 molecule. At relatively high temperatures and water-vapor pressures, an open-cage C60 derivative was quantitatively filled with one water molecule. Closing of the opening restored the C60 framework, encapsulating single water molecules. Access to bulk quantities of isolated water molecules may enable studies into the influence of hydrogen bonding on its properties. Water normally exists in hydrogen-bonded environments, but a single molecule of H2O without any hydrogen bonds can be completely isolated within the confined subnano space inside fullerene C60. We isolated bulk quantities of such a molecule by first synthesizing an open-cage C60 derivative whose opening can be enlarged in situ at 120°C that quantitatively encapsulated one water molecule under the high-pressure conditions. The relatively simple method was developed to close the cage and encapsulate water. The structure of H2O@C60 was determined by single-crystal x-ray analysis, along with its physical and spectroscopic properties. [PUBLICATION ]
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