Your browser doesn't support javascript.
loading
Collision energy dependence of state-to-state differential cross sections for rotationally inelastic scattering of H2O by He.
Sarma, Gautam; Saha, Ashim Kumar; Bishwakarma, Chandan Kumar; Scheidsbach, Roy; Yang, Chung-Hsin; Parker, David; Wiesenfeld, Laurent; Buck, Udo; Mavridis, Lazaros; Marinakis, Sarantos.
Afiliación
  • Sarma G; Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands.
  • Saha AK; Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands.
  • Bishwakarma CK; Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands.
  • Scheidsbach R; Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands.
  • Yang CH; Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands and Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan.
  • Parker D; Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands.
  • Wiesenfeld L; Univ. Grenoble Alpes and CNRS, IPAG, F-38000 Grenoble, France.
  • Buck U; Max-Planck-Institut für Dynamik und Selbst-Organisation, Am Faßberg 17, D-37077 Göttingen, Germany.
  • Mavridis L; Department of Chemistry and Biochemistry, School of Biological and Chemical Sciences, Queen Mary University of London, Joseph Priestley Building, Mile End Road, London, E1 4NS, UK. s.marinakis@qmul.ac.uk.
  • Marinakis S; Department of Chemistry and Biochemistry, School of Biological and Chemical Sciences, Queen Mary University of London, Joseph Priestley Building, Mile End Road, London, E1 4NS, UK. s.marinakis@qmul.ac.uk.
Phys Chem Chem Phys ; 19(6): 4678-4687, 2017 Feb 08.
Article en En | MEDLINE | ID: mdl-28127600
The inelastic scattering of H2O by He as a function of collision energy in the range 381 cm-1 to 763 cm-1 at an energy interval of approximately 100 cm-1 has been investigated in a crossed beam experiment using velocity map imaging. Change in collision energy was achieved by varying the collision angle between the H2O and He beam. We measured the state-to-state differential cross section (DCS) of scattered H2O products for the final rotational states JKaKc = 110, 111, 221 and 414. Rotational excitation of H2O is probed by (2 + 1) resonance enhanced multiphoton ionization (REMPI) spectroscopy. DCS measurements over a wide range of collision energies allowed us to probe the H2O-He potential energy surface (PES) with greater detail than in previous work. We found that a classical approximation of rotational rainbows can predict the collision energy dependence of the DCS. Close-coupling quantum mechanical calculations were used to produce DCS and partial cross sections. The forward-backward ratio (FBR), is introduced here to compare the experimental and theoretical DCS. Both theory and experiments suggest that an increase in the collision energy is accompanied with more forward scattering.
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Chem Chem Phys Asunto de la revista: BIOFISICA / QUIMICA Año: 2017 Tipo del documento: Article País de afiliación: Países Bajos Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Chem Chem Phys Asunto de la revista: BIOFISICA / QUIMICA Año: 2017 Tipo del documento: Article País de afiliación: Países Bajos Pais de publicación: Reino Unido