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Cluster Ions

Cluster Ions
Author: Cheuk-Yiu Ng
Publisher:
Total Pages: 504
Release: 1993-11-30
Genre: Science
ISBN:

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Cluster Ions Edited by Cheuk-Yiu Ng, Ames Laboratory, Iowa State University, lowa, USA Tomas Baer, University of North Carolina, NC, USA Ivan Powis, University of Nottingham, UK As a result of many recent advances in both experimental techniques and theoretical methodologies, increasingly detailed and sophisticated studies concerning the formation, structures, energetics, and reaction dynamics of state- or energy-selected molecular ions can now be performed. In order better to serve the ion chemistry and physics communities, each volume of this series will be dedicated to reviewing a specific topic emphasizing new experimental and theoretical developments in the study of ions. This first volume is devoted to the physics and chemistry of clusters. Measurement of cluster ion properties, made as a function of cluster size, are expected to shed some light on the basic understanding of the transition from gas phase to condensed matter. The interest in cluster research is also motivated by the important roles that clusters play in many practical fields, such as catalysis and microelectronics. The authors of the seven chapters making up this volume are among the most active researchers in their respective areas. This series will help stimulate new research directions and point to future opportunities in the field of ion chemistry.


Structure in Cluster Ions

Structure in Cluster Ions
Author: Paul Michael Holland
Publisher:
Total Pages: 308
Release: 1980
Genre: Ions
ISBN:

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The Structure of Small Molecules and Ions

The Structure of Small Molecules and Ions
Author: Ron Naaman
Publisher: Springer Science & Business Media
Total Pages: 338
Release: 2012-12-06
Genre: Technology & Engineering
ISBN: 1468474243

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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.


Cluster Ions and Van Der Waals Molecules

Cluster Ions and Van Der Waals Molecules
Author: B.M. Smirnov
Publisher: CRC Press
Total Pages: 296
Release: 1992-03-20
Genre: Science
ISBN: 9782881246975

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Smirnov (plasma chemistry, Institute of High Temperatures, Moscow) presents a comprehensive introduction to cluster ions and Van der Waals molecules for graduates and researchers in chemistry. He discusses the current ideas on the operant physics and chemistry, and reports numerical data on the parameters of the entities and processes involving them. First published in Russian in 1983. Annotation copyrighted by Book News, Inc., Portland, OR


Ion and Cluster Ion Spectroscopy and Structure

Ion and Cluster Ion Spectroscopy and Structure
Author: J. P. Maier
Publisher: Elsevier Publishing Company
Total Pages: 508
Release: 1989
Genre: Science
ISBN:

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Rapid and impressive advances have been made in recent years in the spectroscopy and structure of ion and ionic clusters. This new multi-author volume provides an up-to-date and in-depth coverage of the progress made, the present knowledge, and the state-of-the art of the field. The first chapter deals with the developments and application of the Coulomb explosion technique for the determination of the geometric structure of polyatomic cations. This is followed by a review of the structural information obtained by microwave techniques on cations and of their radioastronomical studies. Of the next three chapters, two deal with theoretical approaches to predict spectroscopic data on ions, and the third deals with the experimental measurements using infrared laser methods. The next chapter covers progress in the area of high resolution photodetachment studies on anions using laser-ion beam methods. The techniques and results described in the following chapter are concerned with the investigations of open-shell cations by means of their electronic transitions. The latter chapters focus on the study of ionic clusters and complexes.


Structure/Reactivity and Thermochemistry of Ions

Structure/Reactivity and Thermochemistry of Ions
Author: Pierre Ausloos
Publisher: Springer Science & Business Media
Total Pages: 491
Release: 2012-12-06
Genre: Science
ISBN: 9400937873

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This volume presents the proceedings of a 1986 Advanced Study Institute entitled "Structure/Reactivity and Thermochemistry of Ions", held at Les Arcs, France, June 30 to July 11, 1986. The format of a NATO Institute is ideally suited to in-depth communications between scien tists of diverse backgrounds. Particularly in the field of ion physics and chemistry, where on-going research involves physicists, physical chemists, and organic chemists - who use a variety of experimental and theoretical techniques - it is found that in the relaxed but stimula ting atmosphere of a NATO ASI, each professional group provides unique insights, leading to a better definition and solution of problems relating to the properties of gas phase ions. This book presents chapters based on the lectures presented at the Les Arcs ASI. The participants took the initiative to organize a number of specialized workshops - informal discussion groups which considered questions or problem areas of particular interest. The accounts of these sessions, which are also included in this book, make stimulating reading, and include considerable useful information. This Advanced Study Institute is the fourth in a series of NATO-spon sored institutes devoted to the chemistry and physics of ions in the gas phase. The first, in 1974, in Biarritz, France, focussed on "Interactions between Ions and Molecules".


Physics and Chemistry of Small Clusters

Physics and Chemistry of Small Clusters
Author: P. Jena
Publisher: Springer Science & Business Media
Total Pages: 932
Release: 2013-06-29
Genre: Science
ISBN: 1475703570

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Recent advances in experimental techniques now enable researchers to produce in a laboratory clusters of atoms of desired composition from any of the elements of the periodic table. This has created a new area of research into novel materials since clusters cannot be regarded either as a "large" molecule or as a fragment of the bulk. Both experimental and theoretical studies are revealing unusual properties that are not ob served in solid state environments. The structures of micro-clusters are found to be significantly distorted from the most symmetric arrangement, some even exhibiting pentagonal symmetry commonly found in icosahedric structures. The unusual stability of certain clusters, now described as "magic number species", shows striking similarities with the nuclear shell structure. The relative stabilities of clusters depend not only on the composition of the clusters but also on their charged states. The studies on spontaneous fragmentation of mUltiply charged clusters, commonly referred to as Coulomb explosion, illustrate the role of electronic bonding mechanisms on stability of clusters. The effect of foreign atoms on geometry and stability of clusters and the interaction of gas atoms with clusters are showing promise for an indepth understanding of chemisorption and catalysis. The magnetic and optical properties are dependent not only on cluster size but also on its geometry. These findings have the potential for aiding industry in the area of micro-electronics and catalysis.