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Helium nanodroplets as an efficient tool to investigate hydrogen attachment to alkali cations.
Kollotzek, Siegfried; Campos-Martínez, José; Bartolomei, Massimiliano; Pirani, Fernando; Tiefenthaler, Lukas; Hernández, Marta I; Lázaro, Teresa; Zunzunegui-Bru, Eva; González-Lezana, Tomás; Bretón, José; Hernández-Rojas, Javier; Echt, Olof; Scheier, Paul.
Afiliación
  • Kollotzek S; University of Innsbruck, Institute for Ion Physics and Applied Physics, Innsbruck, Austria. siegfried.kollotzek@uibk.ac.at.
  • Campos-Martínez J; Instituto de Física Fundamental, C.S.I.C., Madrid, Spain. jcm@iff.csic.es.
  • Bartolomei M; Instituto de Física Fundamental, C.S.I.C., Madrid, Spain. jcm@iff.csic.es.
  • Pirani F; Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia, Perugia, Italy.
  • Tiefenthaler L; University of Innsbruck, Institute for Ion Physics and Applied Physics, Innsbruck, Austria. siegfried.kollotzek@uibk.ac.at.
  • Hernández MI; Instituto de Física Fundamental, C.S.I.C., Madrid, Spain. jcm@iff.csic.es.
  • Lázaro T; Instituto de Física Fundamental, C.S.I.C., Madrid, Spain. jcm@iff.csic.es.
  • Zunzunegui-Bru E; Instituto de Física Fundamental, C.S.I.C., Madrid, Spain. jcm@iff.csic.es.
  • González-Lezana T; Instituto de Física Fundamental, C.S.I.C., Madrid, Spain. jcm@iff.csic.es.
  • Bretón J; Departamento de Física and IUdEA, Universidad de La Laguna, La Laguna, Tenerife, Spain.
  • Hernández-Rojas J; Departamento de Física and IUdEA, Universidad de La Laguna, La Laguna, Tenerife, Spain.
  • Echt O; University of Innsbruck, Institute for Ion Physics and Applied Physics, Innsbruck, Austria. siegfried.kollotzek@uibk.ac.at.
  • Scheier P; Department of Physics, University of New Hampshire, Durham, NH 03824, USA.
Phys Chem Chem Phys ; 25(1): 462-470, 2022 Dec 21.
Article en En | MEDLINE | ID: mdl-36477158
We report a novel method to reversibly attach and detach hydrogen molecules to positively charged sodium clusters formed inside a helium nanodroplet host matrix. It is based on the controlled production of multiply charged helium droplets which, after picking up sodium atoms and exposure to H2 vapor, lead to the formation of Nam+(H2)n clusters, whose population was accurately measured using a time-of-flight mass spectrometer. The mass spectra reveal particularly favorable Na+(H2)n and Na2+(H2)n clusters for specific "magic" numbers of attached hydrogen molecules. The energies and structures of these clusters have been investigated by means of quantum-mechanical calculations employing analytical interaction potentials based on ab initio electronic structure calculations. A good agreement is found between the experimental and the theoretical magic numbers.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Chem Chem Phys Asunto de la revista: BIOFISICA / QUIMICA Año: 2022 Tipo del documento: Article País de afiliación: Austria Pais de publicación: Reino Unido
Texto completo
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Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Chem Chem Phys Asunto de la revista: BIOFISICA / QUIMICA Año: 2022 Tipo del documento: Article País de afiliación: Austria Pais de publicación: Reino Unido