The Role of Rydberg States in Spectroscopy and Photochemistry: Low and High Rydberg States

ISBN-13: 9781402004148 / Angielski / Miękka / 2002 / 512 str.

C. Sandorfy

Opis

The aim of this volume is to offer a balanced overview of molecular Rydberg spectroscopy as it has developed over recent decades. Recent evolution has split Rydberg spectroscopy into two apparently distinct fields: the one concerns the low (n=3-5) Rydberg states, the other the very high (typically n>150) Rydberg states. The former is aimed at spectral levels where Rydberg, valence-shell, and intermediate-type states interact, with a variety of photochemical consequences. The latter considers states extremely close to the ionization limit, from whereionization is possible with a very slight amount of additional energy. Recently developed techniques make it possible to produce ions in well-defined electronic, vibrational and rotational states, including states resulting from spin-orbit or Jahn-Teller splitting. It is then possible to study the structure and reactions of such state-selected ions as well as those of the corresponding neutral molecules. These techniques amount to badly needed high resolution photoelectron spectroscopy. The originality of the present volume consists in giving comparable weight to both low- and high-Rydberg spectroscopies. It aims at providing a glance at the whole of molecular Rydberg spectroscopy in one volume. This involves both theory and experiment, general aspects and treatments of individual molecules. The contributors to this book are among the most prominent protagonists of this double field.

Spis treści

Preface. 1. Preliminaries; C. Sandorfy. Part I: Low-Rydberg Spectroscopy. 2. Spectroscopy and Photochemistry of Rydberg States of Small Polyatomic Hydride Molecules; M.N.R. Ashfold, S.R. Langford. 3. Ab Initio Configuration Interaction Calculations of Rydberg and Mixed Valence-Rydberg States; R.J. Buenker, et al. 4. Theoretical Study of Circular Dichroism Spectra in the Vacuum Ultraviolet; S. Grimme, S.D. Peyerimhoff. 5. Magnetic Dichroism in the Vacuum Ultraviolet; S.P. McGlynn, et al. 6. Rydberg and Valence States in the Tetra-Atomic Molecules B2H2, C2H2 and C2H2+; M. Peric, S.D. Peyerimhoff. 7. The Rydberg Spectrum of Aldehydes and Ketones: A Comparison Using Formaldehyde as a Benchmark; M.R.J. Hachey, F. Grein. 8. The Rydberg Photophysics and Photochemistry of Amines; E. Kassab, E.M. Evleth. Part II: High Rydberg Spectroscopy. 9. From Rydbergs to Zeke States; A. Held, E.W. Schlag. 10. Lifetimes of Rydberg States in Small Molecules: Fluorescence, Predissociation, and Autoionization; H. Lefebvre-Brion. 11. Rotation-Electronic Coupling in Diatomic Rydberg States; J.K.G. Watson. 12. The Dynamics of Electron-Core Interaction in High Molecular Rydberg States; F. Remacle, R.D. Levine. 13. Dynamics of a Rydberg Molecule in an External Magnetic Field; D. Gauyacq, et al. 14. Rydberg Atom-Molecule Charge-Exchange Reactions; R.N. Compton. 15. On the High Rydberg States of the Formyl Radical. The Dynamics ofVibrational Autoionization in Triatomic Molecules; E.R. Grant. 16. Rydberg State Spectroscopy of the SH Radical; C.A. de Lange. 17. Artifacts in PFI-Zeke Photoelectron Spectroscopy; R. Signorell, F. Merkt. Index.