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Quantum Translator-Rotator: Inelastic Neutron Scattering of Dihydrogen Molecules Trapped inside Anisotropic Fullerene Cages

A. J. Horsewill, K. S. Panesar, S. Rols, M. R. Johnson, Y. Murata, K. Komatsu, S. Mamone, A. Danquigny, F. Cuda, S. Maltsev, M. C. Grossel, M. Carravetta, and M. H. Levitt
Phys. Rev. Lett. 102, 013001 – Published 5 January 2009
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Abstract

We report an inelastic neutron scattering investigation of the quantum dynamics of hydrogen molecules trapped inside anisotropic fullerene cages. Transitions among the manifold of quantized rotational and translational states are directly observed. The spectra recorded as a function of energy and momentum transfer are interpreted in terms of the rotational potential and the cage dimensions. The thermodynamics of orthohydrogen and parahydrogen are investigated through temperature dependence measurements.

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  • Received 7 October 2008

DOI:https://doi.org/10.1103/PhysRevLett.102.013001

©2009 American Physical Society

Authors & Affiliations

A. J. Horsewill1,*, K. S. Panesar1, S. Rols2, M. R. Johnson2, Y. Murata3, K. Komatsu3, S. Mamone4, A. Danquigny4, F. Cuda4, S. Maltsev4, M. C. Grossel4, M. Carravetta4, and M. H. Levitt4

  • 1School of Physics & Astronomy, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
  • 2Institut Laue-Langevin, BP 156, 38042 Grenoble, France
  • 3Institute for Chemical Research, Kyoto University, Kyoto 611-0011, Japan
  • 4School of Chemistry, University of Southampton, Southampton, SO17 1BJ, United Kingdom

  • *Corresponding author. a.horsewill@nottingham.ac.uk

See Also

Molecule in a Cage

Michael Schirber
Phys. Rev. Focus 23, 1 (2009)

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Vol. 102, Iss. 1 — 9 January 2009

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