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

C. Sándorfy0792355334, 9780792355335, 9780306469381

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.

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Table of contents :
Preliminaries……Page 2
Table of Contents……Page 6
1. Preliminaries…….Page 24
2. Spectroscopy and Photochemistry of Rydberg States of small PolyAtomic Hydride Molecules…….Page 46
3. Configuration Interaction Calculations of Rydberg and MIxed Valence-Rydberg States…….Page 80
4. Theoretical Study of Circular Dichroism Spectra in The Vacuum-Ultraviolet……Page 116
5. Magnetic Dichroism in the Vacuum Ultraviolet……Page 144
6. Rydberg and Valence States in the Tetra-Atomic Molecules……Page 160
7. The Rydberg Spectrum of Aldehydes and Ketones……Page 202
8. The Rydberg Photophysics and Photochemistry of Amines…….Page 254
9. From Rydbergs to Zeke States……Page 272
10. Lifetimes of Rydberg States in Small Molecules……Page 290
11. Rotation-Electronic Coupling in Diatomic Rydberg states……Page 316
12. The Dynamics of Elctron- Core Interaction in High Molecular Rydberg States…….Page 352
13. Dynamics of a Rydberg Molecule in an External Magnetic Field…….Page 416
14. Rydberg Atom-Molecule Charge-Exchange Reactions……Page 442
15. On the High Rydberg States of the Formyl Radical……Page 460
16. Rydberg State Spectroscopy of the SH Radical…….Page 480
17. Artifacts in PFI-Zeke Photoelectron Spectroscopy…….Page 502
INDEX……Page 528