Confirming a predicted selection rule in inelastic neutron scattering spectroscopy: the quantum translator-rotator H2 entrapped inside C60
Confirming a predicted selection rule in inelastic neutron scattering spectroscopy: the quantum translator-rotator H2 entrapped inside C60
We report an inelastic neutron scattering (INS) study of a H 2 molecule encapsulated inside the fullerene C 60 which confirms the recently predicted selection rule, the first to be established for the INS spectroscopy of aperiodic, discrete molecular compounds. Several transitions from the ground state of para-H 2 to certain excited translation-rotation states, forbidden according to the selection rule, are systematically absent from the INS spectra, thus validating the selection rule with a high degree of confidence. Its confirmation sets a precedent, as it runs counter to the widely held view that the INS spectroscopy of molecular compounds is not subject to any selection rules.
Xu, Minzhong
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Jiménez-Ruiz, Mónica
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Johnson, Mark R.
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Rols, Stéphane
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Ye, Shufeng
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Carravetta, Marina
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Denning, Mark S.
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Lei, Xuegong
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Bačić, Zlatko
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Horsewill, Anthony J.
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17 September 2014
Xu, Minzhong
af99084d-ac9a-429e-8afb-eaf41687dbe6
Jiménez-Ruiz, Mónica
47a5f106-e1d0-4604-88cb-1900eb5d74fe
Johnson, Mark R.
c06fdb56-9ef8-47d8-89d5-48f0ff83990f
Rols, Stéphane
604c9299-aeff-4d5e-a16c-54a2f9b50108
Ye, Shufeng
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Carravetta, Marina
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Denning, Mark S.
a8f0d515-53fd-4e65-a7f5-c7aa9e2b7f98
Lei, Xuegong
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Bačić, Zlatko
698eee42-0236-43dc-80f9-b280e8e3bc42
Horsewill, Anthony J.
262eff25-a868-4984-83a6-f2a5090e7635
Xu, Minzhong, Jiménez-Ruiz, Mónica, Johnson, Mark R., Rols, Stéphane, Ye, Shufeng, Carravetta, Marina, Denning, Mark S., Lei, Xuegong, Bačić, Zlatko and Horsewill, Anthony J.
(2014)
Confirming a predicted selection rule in inelastic neutron scattering spectroscopy: the quantum translator-rotator H2 entrapped inside C60.
Physical Review Letters, 113 (12), [123001].
(doi:10.1103/PhysRevLett.113.123001).
Abstract
We report an inelastic neutron scattering (INS) study of a H 2 molecule encapsulated inside the fullerene C 60 which confirms the recently predicted selection rule, the first to be established for the INS spectroscopy of aperiodic, discrete molecular compounds. Several transitions from the ground state of para-H 2 to certain excited translation-rotation states, forbidden according to the selection rule, are systematically absent from the INS spectra, thus validating the selection rule with a high degree of confidence. Its confirmation sets a precedent, as it runs counter to the widely held view that the INS spectroscopy of molecular compounds is not subject to any selection rules.
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e-pub ahead of print date: 17 September 2014
Published date: 17 September 2014
Organisations:
Magnetic Resonance
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Local EPrints ID: 376623
URI: http://eprints.soton.ac.uk/id/eprint/376623
PURE UUID: f6a791bf-68db-4f3c-aa97-e89750e88173
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Date deposited: 06 May 2015 11:09
Last modified: 15 Mar 2024 03:14
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Author:
Minzhong Xu
Author:
Mónica Jiménez-Ruiz
Author:
Mark R. Johnson
Author:
Stéphane Rols
Author:
Shufeng Ye
Author:
Mark S. Denning
Author:
Xuegong Lei
Author:
Zlatko Bačić
Author:
Anthony J. Horsewill
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