Ebook: The Structure of Small Molecules and Ions

The workshop on "The structure of small molecules and ions" was held at the Neve-Han guest house, near Jerusalem, Israel on December 13 to 18 in mem­ ory of the late Professor Itzhak Plesser. Professor Plesser played a central role in the research done both at the Weizmann Institute and at Argonne National Laboratories on the "Coulomb explosion" method. His friends honored his memory by organizing a meeting in which subjects related to Plesser's interests would be discussed. Just a week be­ fore the conference started we were struck by another tragedy -the death of our graduate student Ms. Hana Kovner, who participated in many of the Coulomb explosion experiments at the Weizmann Institute. We would like to dedicate these proceedings to her memory as well. The goal of the workshop was to bring together chemists and physicists working on different aspects of the structural problems of small molecular en­ tities. The time seemed appropriate for discussing experimental and theoretical concepts, since in recent years new methods have been introduced, and a large amount of information has been accumulated on systems not studied before, like unstable molecules, ions, van der Waals molecules and clusters. The program of the workshop reflects, we believe, these new developments. The meeting was characterized by intensive discussions in which the weak­ nesses and strengths of new and of well established concepts were revealed. We hope that it measured up to the high standards Itzhak Plesser maintained all through his scientific life.

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Content:
Front Matter....Pages i-xi
Small Molecules and Ions: A Thing or Two We Still don’t Understand....Pages 1-8
Approximate Separability and Choice of Coordinates for Excited Vibrations of Polyatomic Molecules and Clusters....Pages 9-27
The Application of Spectral Measures to the Stimulated Emission Pumping of Acetylene....Pages 29-37
Dynamical Effects in the “Phase Change” Behavior of Small Clusters....Pages 39-47
Spectroscopic Signatures of Floppiness in Molecular Complexes....Pages 49-58
Nonstatistical Behavior in the Vibrational Predissociation Dynamics of Binary and Tertiary Complexes....Pages 59-67
Rovibrational Spectroscopy of ArCo Van Der Waals Complex....Pages 69-75
Infrared Spectroscopy of Molecular Ions....Pages 77-86
Estimation of Microwave and Infrared Spectral Parameters of Some Molecular Ions from Ab-Initio Electronic Structure Calculations....Pages 87-92
Structure of Small Molecules Via the Coulomb Explosion Method....Pages 93-103
Preparation of Molecules in a Single State for Coulomb Explosion Measurements....Pages 105-111
What can Coulomb Explosions Teach Us about Clusters?....Pages 113-117
Probing of Nuclear Waves in Triplet H2 (n=3)....Pages 119-124
Multiphoton Ionization of Clusters: Reactions and Spectroscopy....Pages 125-131
Photodetachment Spectroscopy of Negative Cluster Ions....Pages 133-145
The Structure of Small Molecules and Ions as Determined by Photoionization Mass Spectrometry....Pages 147-169
Dynamic Aspect of Excited-State Photoelectron Spectroscopy: Some Small Molecules....Pages 171-172
Probing Molecular Dynamics with Laser Photoelectron Spectroscopy....Pages 173-180
Direct Calculation of Molecular Transition Energies by the Open-Shell Coupled-Cluster Method....Pages 181-187
Fragmentation Mechanisms for Multiply-Charged Cations....Pages 189-195
The Natural Bond Orbital Lewis Structure Concept for Molecules, Radicals, and Radical Ions....Pages 197-208
Studies in the Paired Orbital Method III: The Structure of the Po Wavefunction....Pages 209-218
Participation of a Hydrogen-Bridged Intermediate Ion [O=C(H)-H..Co]+ in the Loss of Co from Ionized Glyoxal?....Pages 219-225
Studies of Ion Cluster Structures by MS/MS Methods....Pages 227-236
Nonadiabatic Effects in Unimolecular Reactions of Ionized Molecules....Pages 237-242
The Unimolecular Chemistry of [1, 2-Propanediol]+.: A Rationale in Terms of Hydrogen Bridged Radical Cations....Pages 243-249
The Energetic and Structural Interpretation of Ion Photodissociation Spectra....Pages 251-260
The Search for Novel Small Molecules and Radicals....Pages 261-263
New Information on the Structure and Dynamics of Molecular Cations from Experiments on The Spectroscopy of Polyatomic Rydberg States....Pages 265-267
Production and Relaxation of Negative Cluster Ions by Use of High-Rydberg Rare Gas Atoms....Pages 269-271
Excitation and Ionization of High N H-Atoms by Monochromatic and Bichromatic Microwave Fields....Pages 273-283
A Zero-Order Electronic Structure Model for Ionic Diatomic Molecules....Pages 285-291
Recent Developments in Studies of Open-Shell Cations Via Their Electronic Transitions....Pages 293-307
Back Matter....Pages 309-318
....Pages 319-331