Methane Encapsulated by Buckminsterfullerene

  • ChemPubSoc Europe Logo
  • Author: Angewandte Chemie International Edition
  • Published Date: 09 April 2019
  • Source / Publisher: Angewandte Chemie International Edition/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
thumbnail image: Methane Encapsulated by Buckminsterfullerene

Buckminsterfullerene is a spherical cage of sixty carbon atoms that can be used to trap individual molecules. So-called endofullerenes allow an encapsulated molecule to be studied in an isolated environment.

Richard John Whitby, University of Southampton, UK, and colleagues have synthesized the first endofullerene containing a single molecule of methane, CH4@C60. Methane fills the internal cavity of C60. The researchers synthesized open-cage C60 with an aperture large enough to allow entry of a single methane molecule. Under 1645 atm of methane gas pressure, 95 % of the encapsulated species was formed. A series of reaction steps were then used to close the hole in the carbon cage.

CH4@C60 was studied with nuclear magnetic resonance spectroscopy (NMR), mass spectrometry (MS), and X-ray crystallography. The 1H spin-lattice relaxation times for the isolated methane molecule are similar to those in the gas phase, which suggests that the molecule is rotating freely inside the cage. The researchers believe that the encapsulation method could be used to synthesize novel endofullerenes containing small molecules such as CO2 or NH3.



Article Views: 863

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from, please contact us first for permission. more

CONNECT: on Facebook on Twitter on YouTube on LinkedIn Sign up for our free newsletter

A product of ChemPubSoc Europe (16 European Chemical Societies)and Wiley-VCH