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4 results on '"Kamimori K"'

1. Angle-resolved ion-yield measurements of CO2 in the O 1s to Rydberg excitation region

Author

Okada, K., Yoshida, H., Senba, Y., Kamimori, K., Tamenori, Y., Ohashi, H., Ueda, K., and Ibuki, T.

Subjects
Physics::Chemical Physics
Abstract

Angle-resolved energetic-ion-yield spectra were observed in the region of the O 1s to Rydberg excitation of CO2 with incident photon energy resolving power E/ΔE≃14 000. The assignments of the electronic states were established in accordance with the angular distribution data. All the observed vibrational structures were assigned to the antisymmetric stretching vibrations caused by the vibronic coupling between the nearly degenerate O 1s core-excited states. A Franck-Condon analysis was performed within the linear coupling model.

Published
2002

2. H2+ formation from H2O+ mediated by the core-excitation-induced nuclear motion in H2O

Author

Hiraya, Atsunari, Nobusada, K., Simon, M., Okada, Kazumasa, Tokushima, T., Senba, Y., Yoshida, Hiroaki, Kamimori, K., Okumura, H., Shimizu, Y., Thomas, A.-L., Millie, P., Koyano, I., Ueda, K., Department of Physical Sciences [Higashi-Hiroshima], Hiroshima University, Laboratoire pour l'utilisation du rayonnement électromagnétique (LURE), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-MENRT-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie Physique - Matière et Rayonnement (LCPMR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Francis PERRIN (LFP - URA 2453), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie Physique D'Orsay (LCPO), and Université Paris-Sud - Paris 11 (UP11)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, Physics::Atomic and Molecular Clusters, Physics::Chemical Physics
Abstract

The vibrational structure of the O1s[-1]2b2 core-excited state of H2O is observed and ascribed to the mixture of symmetric stretching and bending motions with a1 symmetry. The formation of H2+ is found to increase linearly with an increase in energy stored in the nuclear motion of the O1s[-1]2b2 state, demonstrating that this dissociation channel is mediated by the nuclear motion in the core-excited state. The reaction pathway to the H2+ formation along the Auger final state of H2O+, mediated by the nuclear motion before the Auger decay, is discussed with the help of ab initio potential surfaces of the Auger final states.

Published
2001
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