Quantum interference scattering of aligned molecules: Bonding in O-4 and role of spin coupling

Molecular beam experiments on collisions between oxygen molecules were performed at low energy and high angular resolution to permit observation of the ``glory'' interference effect. A novel technique for aligning the rotational angular momentum of the colliding molecules is exploited. Ana...

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Detalles Bibliográficos
Autores: Aquilanti, Vincenzo, Ascenzi, Daniela, Bartolomei, Massimiliano, Cappelletti, David, Cavalli, Simonetta, Castro Vitores, Miguel de, Pirani, Fernando
Tipo de recurso: artículo
Fecha de publicación:1999
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/100467
Acceso en línea:http://hdl.handle.net/10261/100467
Access Level:acceso abierto
Palabra clave:[PACS] Intermolecular and atom-molecule potentials and forces
[PACS] Scattering of atoms and molecules
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spelling Quantum interference scattering of aligned molecules: Bonding in O-4 and role of spin couplingAquilanti, VincenzoAscenzi, DanielaBartolomei, MassimilianoCappelletti, DavidCavalli, SimonettaCastro Vitores, Miguel dePirani, Fernando[PACS] Intermolecular and atom-molecule potentials and forces[PACS] Scattering of atoms and moleculesMolecular beam experiments on collisions between oxygen molecules were performed at low energy and high angular resolution to permit observation of the ``glory'' interference effect. A novel technique for aligning the rotational angular momentum of the colliding molecules is exploited. Analysis of total scattering cross section data yields for the O2-O2 bond an energy of 1.65+/-0.08 kJ˙mol-1 for the most stable configuration (parallel molecules) at a distance of 0.356+/-0.007 nm. These results indicate that most of the bonding in the dimer comes from electrostatic (van der Waals) forces but chemical (spin-spin) contributions are not negligible.This work was supported by the Italian CNR and MURST, and the European Union (Contract No. ERG-FMRX-CT96-0088)Peer ReviewedAmerican Physical Society2014201419992014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/100467reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1004672026-05-22T06:33:51Z
dc.title.none.fl_str_mv Quantum interference scattering of aligned molecules: Bonding in O-4 and role of spin coupling
title Quantum interference scattering of aligned molecules: Bonding in O-4 and role of spin coupling
spellingShingle Quantum interference scattering of aligned molecules: Bonding in O-4 and role of spin coupling
Aquilanti, Vincenzo
[PACS] Intermolecular and atom-molecule potentials and forces
[PACS] Scattering of atoms and molecules
title_short Quantum interference scattering of aligned molecules: Bonding in O-4 and role of spin coupling
title_full Quantum interference scattering of aligned molecules: Bonding in O-4 and role of spin coupling
title_fullStr Quantum interference scattering of aligned molecules: Bonding in O-4 and role of spin coupling
title_full_unstemmed Quantum interference scattering of aligned molecules: Bonding in O-4 and role of spin coupling
title_sort Quantum interference scattering of aligned molecules: Bonding in O-4 and role of spin coupling
dc.creator.none.fl_str_mv Aquilanti, Vincenzo
Ascenzi, Daniela
Bartolomei, Massimiliano
Cappelletti, David
Cavalli, Simonetta
Castro Vitores, Miguel de
Pirani, Fernando
author Aquilanti, Vincenzo
author_facet Aquilanti, Vincenzo
Ascenzi, Daniela
Bartolomei, Massimiliano
Cappelletti, David
Cavalli, Simonetta
Castro Vitores, Miguel de
Pirani, Fernando
author_role author
author2 Ascenzi, Daniela
Bartolomei, Massimiliano
Cappelletti, David
Cavalli, Simonetta
Castro Vitores, Miguel de
Pirani, Fernando
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv [PACS] Intermolecular and atom-molecule potentials and forces
[PACS] Scattering of atoms and molecules
topic [PACS] Intermolecular and atom-molecule potentials and forces
[PACS] Scattering of atoms and molecules
description Molecular beam experiments on collisions between oxygen molecules were performed at low energy and high angular resolution to permit observation of the ``glory'' interference effect. A novel technique for aligning the rotational angular momentum of the colliding molecules is exploited. Analysis of total scattering cross section data yields for the O2-O2 bond an energy of 1.65+/-0.08 kJ˙mol-1 for the most stable configuration (parallel molecules) at a distance of 0.356+/-0.007 nm. These results indicate that most of the bonding in the dimer comes from electrostatic (van der Waals) forces but chemical (spin-spin) contributions are not negligible.
publishDate 1999
dc.date.none.fl_str_mv 1999
2014
2014
2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/100467
url http://hdl.handle.net/10261/100467
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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