Cluster Ions
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Cluster Ions And Van Der Waals Molecules
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Author : B.M. Smirnov
language : en
Publisher: CRC Press
Release Date : 1992-03-20
Cluster Ions And Van Der Waals Molecules written by B.M. Smirnov and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992-03-20 with Science categories.
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
Cluster Ions
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Author : Cheuk-Yiu Ng
language : en
Publisher:
Release Date : 1993-11-30
Cluster Ions written by Cheuk-Yiu Ng and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-11-30 with Science categories.
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.
Ion And Cluster Ion Spectroscopy And Structure
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Author : J. P. Maier
language : en
Publisher: Elsevier Publishing Company
Release Date : 1989
Ion And Cluster Ion Spectroscopy And Structure written by J. P. Maier and has been published by Elsevier Publishing Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Science categories.
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.
Physics And Chemistry Of Small Clusters
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Author : P. Jena
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29
Physics And Chemistry Of Small Clusters written by P. Jena and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Science categories.
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.
Cluster Ion Solid Interactions
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Author : Zinetula Insepov
language : en
Publisher: CRC Press
Release Date : 2016-04-21
Cluster Ion Solid Interactions written by Zinetula Insepov and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-21 with Science categories.
Cluster Ion-Solid Interactions: Theory, Simulation, and Experiment provides an overview of various concepts in cluster physics and related topics in physics, including the fundamentals and tools underlying novel cluster ion beam technology. The material is based on the author’s highly regarded courses at Kyoto University, Purdue University, the Moscow Institute of Physics and Technology, and the Moscow Engineering Physics Institute as well as his research results on cluster ion beam applications at Kyoto University. The author introduces the basic principles of statistical physics and thermodynamics before covering applications, experimental justifications, and practical implementations. He describes classical nucleation theory and explains the drawbacks of this theory, showing how accurate modeling and simulations are necessary to justify theoretical approaches and simplifications.
Metal Clusters
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Author : Frank Träger
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Metal Clusters written by Frank Träger and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
This volume contains papers which have been presented at the International Sym posium on Metal Clusters in Heidelberg from April 7-11, 1986. Clusters, and in particular metal clusters, have been the topic of fa~t growing scientific interest. Indeed, clusters constitute a field of interdisciplinary nature where both physical and chemical questions have to be addressed. Clusters are offundamental importance for the deeper understanding of the transition from atoms via molecules and larger aggregates of particles to the properties of solid materials. Moreover, metal clusters and their character istics are of vital significance for such applied topics as catalysis or photography. Experimentally, the field exhibited rapid progress in the last years. Different sources for clusters have been developed. Intense beams made possible the investigation of free neutral clusters and cluster ions as well. Even though a number of issues concerning metal clusters is still discussed controversially, the present volume tries to give an overview of current work in this field and to illustrate the large variety of experiments as well as the advances made possible by modern theoretical methods. Looking at the many interesting questions still to be addressed it is fair to propose a rapid further growth of this field.
On Water Cluster Ions In The Ionospheric D Region
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Author : R. S. Narcisi
language : en
Publisher:
Release Date : 1970
On Water Cluster Ions In The Ionospheric D Region written by R. S. Narcisi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Atmosphere, Upper categories.
Positive ion composition measurements obtained with rocket-borne mass spectrometers in the lower ionosphere are presented. The current situation regarding the water cluster ions in the D region is considered. Evidence is given in favor of an ambient instead of a contamination origin for the water cluster ions, although the exact processes for the formation of these ions in the atmosphere are still not definitely established. A theory is discussed whereby water cluster ions may be created through the ionization of small water conglomerates, which are assumed both to be present in the mesosphere and to have very low ionization thresholds. (Author).
Investigations Of Mass Spectra Of Hydrogen Cluster Ions With A Momentum Analyzer Of The Magnetic Sector Type
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Author : K. Buchheit
language : en
Publisher:
Release Date : 1968
Investigations Of Mass Spectra Of Hydrogen Cluster Ions With A Momentum Analyzer Of The Magnetic Sector Type written by K. Buchheit and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Ions categories.
Ionized clusters of condensed hydrogen accelerated by a voltage of 25 kV are energy-analyzed by a cylinder condenser. Thus, only ions which have lost no mass in collisions with residual gas enter a momentum analyzer of the magnetic sector type. The recorded mass spectra reveal the mass numbers of hydrogen cluster ions to be predominantly odd. Supplying a negative voltage to an electrode in front of the ion collector to suppress secondary electrons results in a reversal of the collector current for cluster ions.
Photodissociation Spectroscopy And Dynamics Of Negative Cluster Ions
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Author : Donald Edward Hunton
language : en
Publisher:
Release Date : 1983
Photodissociation Spectroscopy And Dynamics Of Negative Cluster Ions written by Donald Edward Hunton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Anions categories.
Physics Of Clusters
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Author : Viktor D. Lakhno
language : en
Publisher: World Scientific
Release Date : 1998
Physics Of Clusters written by Viktor D. Lakhno and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Science categories.
The monograph is devoted to the relatively new and fast developing field of cluster physics. It is based on talks given at the Cluster Workshops, which were held in Pushchino in 1995 and 1996. The reports focus not only on the fundamental physical properties of clusters such as their geometric and electronic structure, as well as optical, thermal and magnetic properties, but also on a broad spectrum of their potential applications. These include nucleation and growth of small particles, fabrication of new materials with predefined properties (cluster-assembled and nanostructures). Some aspects of simulations and calculations of small particles and clusters are also discussed.We hope that our monograph will be of interest to a broad range of readers who will be able to sense the excitement of the talks.