Chemistry Within Molecular Van Der Waals Clusters
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Chemistry Within Molecular Van Der Waals Clusters
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Author : James F. Garvey
language : en
Publisher:
Release Date : 1990
Chemistry Within Molecular Van Der Waals Clusters written by James F. Garvey and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
A subject of great interest in recent years has been the study of the physics of weakly bound van der Waals clusters. These species have been probed in a variety of ways to gain an understanding of their formation and to determine their various physical properties. However, the study of chemical reactions within clusters is especially intriguing since clusters can conceptually bridge the disparate fields of bimolecular gas-phase reaction dynamics and solution chemistry. The ultimate goal of these studies is to obtain an understanding of the factors that govern reactions in solution but which are absent in gas phase processes. By concentrating on the chemistry within these cluster systems it is possible to directly observe how the behavior of the system changes as a function of stepwise solvation. In addition to the typical unimolecular and bimolecular gas-phase chemistry already studied within clusters, our group has recently observed the generation of new cluster product ions which cannot be explained by either of these two known processes. (jes).
Chemistry Within Van Der Waals Cluster Of Unsaturated Molecules Observation Of Cationic Polymerization
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Author :
language : en
Publisher:
Release Date : 1992
Chemistry Within Van Der Waals Cluster Of Unsaturated Molecules Observation Of Cationic Polymerization written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.
We present in this paper the observation of intracluster ion-molecule polymerization reactions within clusters containing molecules which possess double or triple carbon-carbon bonds. This effect is borne out by the observation of unusual magic numbers in the cluster ion distribution only under expansion conditions which favor the production of large neutral clusters. These magic numbers are rationalized in terms of the production of covalently bonded cyclic molecular ions which terminate the cationic polymerization process.
Structure And Dynamics Of Weakly Bound Molecular Complexes
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Author : Alfons Weber
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Structure And Dynamics Of Weakly Bound Molecular Complexes written by Alfons Weber 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.
The study of weakly bound molecular complexes has in recent years brought this field of investigation to the forefront of physical and chemical research. The scope of the subject is wide and different terminology and nomenclature is current among the various subspecialties. Thus, the term "metal cluster" often connotes to the organic chemist a metal-organic compound, while the physicist will more likely think of groups of metal atoms held together by weak interatomic forces. Aggregates, clusters, complexes, van der Waals molecules, hydrogen-bonded molecules, etc. are terms currently in use, sometimes interchangeably while other times with well defined and mutually exclusive meanings. The subjects of this volume are the free, isolated vim der Waals and hydrogen-bonded molecules. Owing to the present state of experimental knowledge these are mostly dimers, i. e. , entities formed by two strongly bound molecules, an atom and a molecule, or two atoms held together by the weak hydrogen-bonding, or the still weaker van der Waals forces. Weakly bound complexes formed of more than two strongly bound sub-units, i. e. , trimers, tetramers, etc. , are now coming within reachof experimental observation and several papers in this book deal with them. The study of van der Waals and hydrogen-bonded interactions has been pursued for several decades. Most of these ,investigations have, however, dealt with systems in the condensed phase in which bulk effects are commingled with and therefore mask the weak binary interactions.
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
Infrared Spectroscopy Of Molecular Clusters
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Author : Martina H Havenith
language : en
Publisher: Springer
Release Date : 2014-01-15
Infrared Spectroscopy Of Molecular Clusters written by Martina H Havenith and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-01-15 with categories.
On Clusters And Clustering
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Author : P.J. Reynolds
language : en
Publisher: Elsevier
Release Date : 2014-06-28
On Clusters And Clustering written by P.J. Reynolds and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-06-28 with Science categories.
This book attempts to answer why there is so much interest in clusters. Clusters occur on all length scales, and as a result occur in a variety of fields. Clusters are interesting scientifically, but they also have important consequences technologically. The division of the book into three parts roughly separates the field into small, intermediate, and large-scale clusters. Small clusters are the regime of atomic and molecular physics and chemistry. The intermediate regime is the transitional regime, with its characteristics including the onset of bulk-like behavior, growth and aggregation, and the beginning of materials properties. Large-scale clusters reflect more condensed-matter and materials science aspects and it is in this regime that fractals make their most dramatic appearance. This well-integrated and pedagogical overview of the wide field of clusters in which both theoretical and experimental work is covered, will be of interest not only to students, advanced undergraduates and graduate students, but also to researchers in the various subfields surveyed.
Infrared Spectroscopy Of Molecular Clusters
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Author : Martina H. Havenith
language : en
Publisher: Springer
Release Date : 2003-07-01
Infrared Spectroscopy Of Molecular Clusters written by Martina H. Havenith and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-07-01 with Science categories.
This book is intended to give an introduction to intermolecular forces from an experimental point of view. Within the last 10 years the interest has turned more and more into an understanding of the weak, but important, int- molecular forces. New experimental techniques have been developed which have helped to gain more insight into this interesting topic. This book is intended as an introduction for graduate students who are familiar with the main concepts of n~olecular spectroscopy. Special emphasis will be laid on the theoretical concepts. After a detailed description of experimental techniques, the results for two prototype systems which have been the subject of several studies in the literature within recent years will be presented. Ar-CO is becoming the most extensively studied van der Waals complex, theoretically and experimentally. Nevertheless, this example shows that even though the theory has greatly improved and has helped us to improve our knowledge of intermolecular forces, even for relatively simple cases the theory car1 still fall short of an accurate description. For a long time (NH3)2 was considered as a prototype for hydrogen bo- ing. However, subsequent experimental and theoretical studies have revealed the mysteries of the obtained spectra and proved that our previous concept of hydrogen bonds was just too naive.
Dissociation Dynamics Of Van Der Waals Clusters Of 3 Amino S Tetrazine In A Molecular Beam
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Author : Nikko P. Quevada
language : en
Publisher:
Release Date : 1997
Dissociation Dynamics Of Van Der Waals Clusters Of 3 Amino S Tetrazine In A Molecular Beam written by Nikko P. Quevada and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Molecular beams categories.
Physics And Chemistry Of Finite Systems From Clusters To Crystals
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Author : Peru Jena
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Physics And Chemistry Of Finite Systems From Clusters To Crystals written by Peru 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 2013-11-11 with Science categories.
Recent innovations in experimental techniques such as molecular and cluster beam epitaxy, supersonic jet expansion, matrix isolation and chemical synthesis are increasingly enabling researchers to produce materials by design and with atomic dimension. These materials constrained by sire, shape, and symmetry range from clusters containing as few as two atoms to nanoscale materials consisting of thousands of atoms. They possess unique structuraI, electronic, magnetic and optical properties that depend strongly on their size and geometry. The availability of these materials raises many fundamental questions as weIl as technological possibilities. From the academic viewpoint, the most pertinent question concerns the evolution of the atomic and electronic structure of the system as it grows from micro clusters to crystals. At what stage, for example, does the cluster look as if it is a fragment of the corresponding crystal. How do electrons forming bonds in micro-clusters transform to bands in solids? How do the size dependent properties change from discrete quantum conditions, as in clusters, to boundary constrained bulk conditions, as in nanoscale materials, to bulk conditions insensitive to boundaries? How do the criteria of classification have to be changed as one goes from one size domain to another? Potential for high technological applications also seem to be endless. Clusters of otherwise non-magnetic materials exhibit magnetic behavior when constrained by size, shape, and dimension. NanoscaIe metal particles exhibit non-linear opticaI properties and increased mechanical strength. SimiIarly, materials made from nanoscale ceramic particIes possess plastic behavior.
Clusters
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Author : Minh Tho Nguyen
language : en
Publisher: Springer
Release Date : 2017-01-31
Clusters written by Minh Tho Nguyen and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-31 with Science categories.
The field of atomic clusters continues to attract great interest amongst physicists and chemists alike. This is in part due to their intrinsic properties and potential industrial applications. The first part of Binary Clusters is devoted to recent developments in experimental techniques, the second part covers a variety of theoretical approaches. Different theoretical methods based on group/graph theories and quantum chemical computational methods as well as various spectroscopy techniques (such as mass, laser, infrared, photoelectron etc.) are applied to the determination of the existence of geometrical and electronic structures, chemical bonding phenomena, and the thermodynamic stabilities of several classes of binary clusters. All chapters within this review volume have been contributed by experts in chemistry, physics, and material sciences based at the University of Leuven, Belgium. This book is aimed at professionals and students working in cluster science.