Contribution A La Chimie Des Clusters

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CONTRIBUTION A LA CHIMIE DES CLUSTERS

Author : RAPHAEL.. PUGIN
Publisher :
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.:/5 (492 download)

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Book Synopsis CONTRIBUTION A LA CHIMIE DES CLUSTERS by : RAPHAEL.. PUGIN

Download or read book CONTRIBUTION A LA CHIMIE DES CLUSTERS written by RAPHAEL.. PUGIN and published by . This book was released on 2000 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE MEMOIRE PRESENTE LA SYNTHESE DE CLUSTERS DE TYPE AU 5 5, FORTEMENT STABILISES PAR DE NOUVELLES CLASSES DE LIGANDS THIOLS ET L'ETUDE DE L'EVOLUTION DE LEURS PROPRIETES ELECTRONIQUES RESPECTIVES EN FONCTION DE LA NATURE ET DE LA TAILLE DES LIGANDS PROTECTEURS. LA STABILITE TRES NETTEMENT ACCRUE DE CES NOUVEAUX CLUSTERS S'EST EGALEMENT AVEREE ETRE UN ATOUT CONSIDERABLE POUR LA CONSTRUCTION D'ARRANGEMENTS MONO-, BI- OU TRI-DIMENSIONELS ORDONNES DE CLUSTERS, QUI REPRESENTE INCONTESTABLEMENT LA DERNIERE ETAPE A FRANCHIR POUR L'UTILISATION DE TELS SYSTEMES COMME COMPOSES NANOELECTRONIQUES. UNE EXTENSION DE CETTE ETUDE A EGALEMENT CONSISTE A TENTER DE STABILISER DES CLUSTERS AU 5 5 PAR DES LIGANDS DE TYPE DENDRIMERES DE DIFFERENTES GENERATIONS, DONT LA PERIPHERIE ETAIT DECOREE PAR DES FONCTIONS THIOLS. POUR CERTAINS DENDRIMERES DE HAUTE GENERATION, LA FORMATION DE MICROCRISTAUX REGULIERS D'AU 5 5 NUS, DANS LE SENS DEPOURVUS DE TOUTE COUCHE PROTECTRICE DE LIGANDS, A POUR LA PREMIERE FOIS PU ETRE OBSERVEE ET ETUDIEE PAR TEM (TRANSMISSION ELECTRON MICROSCOPY), SAXRD ET WAXRD (SMALL AND WIDE ANGLE X-RAY DIFFRACTION). CES METHODES D'ANALYSE ONT TOUTES DEMONTRE UNE STRUCTURE CUBIQUE DEFORMEE MAIS PARFAITEMENT REGULIERE DE LA SUPERSTRUCTURE (AU 5 5). LE ROLE DU DENDRIMERE AINSI QU'UNE TENTATIVE D'EXPLICATION DE LA FORMATION DE TELS MICROCRISTAUX SONT EGALEMENT REPORTES. DE PLUS, COMBINANT L'UTILISATION EN CHIMIE DE COORDINATION, DE LIGANDS DIPHOSPHINES FONCTIONNELLES DE TYPE (PH 2P) 2N(CH 2) NSIME 3 M(OME) M COMME LIGANDS ASSEMBLEURS POUR LA SYNTHESE DE COMPLEXES DINUCLEAIRES OU DE CLUSTERS, AVEC L'APTITUDE DE CERTAINS MATERIAUX NANOPOREUX A SE COMPORTER COMME DES MATRICES AU SEIN DESQUELLES CERTAINES ESPECES MOLECULAIRES PEUVENT ETRE CONDENSEES, UN AXE DE RECHERCHE A CONSISTE A ELABORER DIFFERENTES STRATEGIES D'INCORPORATION DE COMPLEXES ET CLUSTERS FONCTIONNELS ET DE COLLOIDES DANS DES MEMBRANES D'ALUMINE NANOPOREUSES PREFONCTIONNALISEES OU NON.

Clusters and Colloids

Author : Günter Schmid
Publisher : John Wiley & Sons
ISBN 13 : 3527616063
Total Pages : 570 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Clusters and Colloids by : Günter Schmid

Download or read book Clusters and Colloids written by Günter Schmid and published by John Wiley & Sons. This book was released on 2008-07-11 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive overview of the rapidly developing field of cluster science. In an interdisciplinary approach, basic concepts as well as recent developments in research and practical applications are authoritatively discussed by leading authors. Topics covered include 'naked' metal clusters, clusters stabilized by ligands, clusters in solids, and colloids. The reader will find answers to questions like: * How many metal atoms must a particle have to exhibit metallic properties? * How can the large specific surface of clusters and colloids be employed in catalysts? * How can metal clusters be introduced into solid hosts? * Which effects are responsible for the transition from isolated to condensed clusters? The editor has succeeded in bringing the contributions of various authors together into a homogeneous, readable book, which will be useful for the academic and industrial reader alike.

Contribution of Clusters Physics to Materials Science and Technology

Author : Joel Davenas
Publisher : Springer Science & Business Media
ISBN 13 : 9400943741
Total Pages : 649 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Contribution of Clusters Physics to Materials Science and Technology by : Joel Davenas

Download or read book Contribution of Clusters Physics to Materials Science and Technology written by Joel Davenas and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last decade there has been an increasing interest in clusters and small particles because of the peculiar proper ties induced by their large area to volume ratio. For that reason small particles are often considered as an intermediate state of matter at the border between atomic (or molecular) chemistry, and physics of the condensed matter. The importance of the surface effect can explain the anomalous properties, for example the exis tence of the five fold symmetry observed in different circumstan ces '(beams of rare gas clusters, gold particles deposited on a substrate). However the question of the critical size at which the transition to bulk properties occurs cannot be simply answered, since the reply depends on the peculiar property which is studied. The importance of the size effect was emphasized in the last International Meetings. However the situation remains confused in most cases since the exact role of the cluster environment cannot be clearly elucidated and is a main difficulty, except in cluster beam experiments. In fact ideally free clusters constitute a labo ratory exception. In most applications small particles must be supported on a surface or embedded in a matrix, in order to be stabilized, which obviously shows the role of the environment.

Cluster Models for Surface and Bulk Phenomena

Author : Gianfranco Pacchioni
Publisher : Springer Science & Business Media
ISBN 13 : 1468460218
Total Pages : 683 pages
Book Rating : 4.4/5 (684 download)

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Book Synopsis Cluster Models for Surface and Bulk Phenomena by : Gianfranco Pacchioni

Download or read book Cluster Models for Surface and Bulk Phenomena written by Gianfranco Pacchioni and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is widely recognized that an understanding of the physical and chemical properties of clusters will give a great deal of important information relevant to surface and bulk properties of condensed matter. This relevance of clusters for condensed matter is one of the major motivations for the study of atomic and molecular clusters. The changes of properties with cluster size, from small clusters containing only a few atoms to large clusters containing tens of thousands of atoms, provides a unique way to understand and to control the development of bulk properties as separated units are brought together to form an extended system. Another important use of clusters is as theoretical models of surfaces and bulk materials. The electronic wavefunctions for these cluster models have special advantages for understanding, in particular, the local properties of condensed matter. The cluster wavefunctions, obtained with molecular orbital theory, make it possible to relate chemical concepts developed to describe chemical bonds in molecules to the very closely related chemical bonding at the surface and in the bulk of condensed matter. The applications of clusters to phenomena in condensed matter is a cross-disciplinary activity which requires the interaction and collaboration of researchers in traditionally separate areas. For example, it is necessary to bring together workers whose background and expertise is molecular chemistry with those whose background is solid state physics. It is also necessary to bring together experimentalists and theoreticians.

Molecular Clusters of the Main Group Elements

Author : Matthias Driess
Publisher : John Wiley & Sons
ISBN 13 : 3527614370
Total Pages : 460 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Molecular Clusters of the Main Group Elements by : Matthias Driess

Download or read book Molecular Clusters of the Main Group Elements written by Matthias Driess and published by John Wiley & Sons. This book was released on 2008-11-21 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: With more than 20 contributions from leading research groups, this book provides essential information for chemists and materials scientists working with molecular clusters. It treats both homonuclear and heteronuclear clusters, including: the theory and concepts in main-group cluster chemistry, * novel boranes and heteroboranes, * silicon/germanium/tin clusters, * alkali metal suboxides, * clusters in alloys with mercury, * chalkogen clusters * and numerous other compound classes. The whole is illustrated by examples of the great potential for technical applications such as electron storage, cancer therapy and in optoelectronic devices. Its systematic coverage of all relevant main group elements makes this the prime reference source in the field.

Clusters of Atoms and Molecules

Author : Hellmut Haberland
Publisher : Springer
ISBN 13 : 9783642843303
Total Pages : 422 pages
Book Rating : 4.8/5 (433 download)

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Book Synopsis Clusters of Atoms and Molecules by : Hellmut Haberland

Download or read book Clusters of Atoms and Molecules written by Hellmut Haberland and published by Springer. This book was released on 2012-01-07 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clusters of Atoms and Molecules I is devoted to theoretical concepts and experimental techniques important in the rapidly expanding field of cluster science. Cluster properties are dicussed for clusters composed of alkali metals, semiconductors, transition metals, carbon, oxides and halides of alkali metals, rare gases, and neutral molecules. The book contains several well-integrated treatments, all prepared by experts. Each contribution starts out as simple as possible and ends with the latest results, so that the book can serve as a text for a course, an introduction into the field, or as a reference book for the expert.

Clusters of Atoms and Molecules

Author : Hellmut Haberland
Publisher : Springer Science & Business Media
ISBN 13 : 3642843298
Total Pages : 435 pages
Book Rating : 4.6/5 (428 download)

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Book Synopsis Clusters of Atoms and Molecules by : Hellmut Haberland

Download or read book Clusters of Atoms and Molecules written by Hellmut Haberland and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clusters of Atoms and Molecules I is devoted to theoretical concepts and experimental techniques important in the rapidly expanding field of cluster science. Cluster properties are dicussed for clusters composed of alkali metals, semiconductors, transition metals, carbon, oxides and halides of alkali metals, rare gases, and neutral molecules. The book contains several well-integrated treatments, all prepared by experts. Each contribution starts out as simple as possible and ends with the latest results, so that the book can serve as a text for a course, an introduction into the field, or as a reference book for the expert.

Physics and Chemistry of Metal Cluster Compounds

Author : L.J. de Jongh
Publisher : Springer Science & Business Media
ISBN 13 : 9401512949
Total Pages : 326 pages
Book Rating : 4.4/5 (15 download)

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Book Synopsis Physics and Chemistry of Metal Cluster Compounds by : L.J. de Jongh

Download or read book Physics and Chemistry of Metal Cluster Compounds written by L.J. de Jongh and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: On Friday, February 20, 1980, I had the pleasure to be present at the inaugural lecture of my colleague Jan Reedijk, who had just been named at the Chair of Inorganic Chemistry of Leiden University. According to tradition, the ceremony took place in the impressive Hall of the old University Academy Building. In the course of his lecture, Jan mentioned a number of recent developments in chemistry which had struck him as particularly important or interesting. Among those was the synthesis of large metal cluster compounds, and, to my luck, he showed a slide ofthe molecular structure of [PtI9(C)b]4-. (To my luck, since at traditional Leiden University it is quite unusual to show slides at such ceremonies.) This constituted my first acquaintance with this exciting new class of materials. I became immediately fascinated by this molecule, partly because of the esthetic beauty of its fivefold symmetry, partly because as a physicist it struck me that it could be visualized as an "embryonically small" metal particle, embedded in a shell of CO ligands.

Recent Progress in Coupled Cluster Methods

Author : Petr Cársky
Publisher : Springer Science & Business Media
ISBN 13 : 9048128854
Total Pages : 672 pages
Book Rating : 4.0/5 (481 download)

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Book Synopsis Recent Progress in Coupled Cluster Methods by : Petr Cársky

Download or read book Recent Progress in Coupled Cluster Methods written by Petr Cársky and published by Springer Science & Business Media. This book was released on 2010-07-03 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: I feel very honored that I have been asked to write a Foreword to this book. The subject of the book – “Coupled cluster theory” – has been around for about half a century. The basic theory and explicit equations for closed-shell ground states were formulated before 1970. At the beginning of the seventies the rst ab initio calcu- tion were carried out. At that time speed and memory of computers were very limited compared to today’s standards. Moreover, the size of one-electron bases employed was small, so that it was only possible to achieve an orientation in methodical aspects rather than to generate new signi cant results. Extensive use of the coupled-cluster method started at the beginning of the eighties. With the help of more powerful computers the results of coupled-cluster approaches started to yield more and more interesting results of relevance to the interpretation of experimental data. New ideas in methodology kept appearing and computer codes became more and more ef cient. This exciting situation continues to this very day. Remarkably enough, even the - quired equations can now be generated by a computer with the help of symbolic languages. The size of this monograph and the rich variety of articles it contains attests to the usefulness and viability of the couple-cluster formalism for the h- dling of many-electron correlation effects. This represents a vivid testimony of a tremendous work that has been accomplished in coupled-cluster methodology and its exploitation.

Metal-Ligand Interactions: From Atoms, to Clusters, to Surfaces

Author : Dennis R. Salahub
Publisher : Springer Science & Business Media
ISBN 13 : 9401128227
Total Pages : 428 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Metal-Ligand Interactions: From Atoms, to Clusters, to Surfaces by : Dennis R. Salahub

Download or read book Metal-Ligand Interactions: From Atoms, to Clusters, to Surfaces written by Dennis R. Salahub and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal-ligand interactions are currently being studied in different fields, from a variety of points of view, and recent progress has been substantial. Whole new classes of compounds and reactions have been found; an arsenal of physical methods has been developed; mechanistic detail can be ascertained to an increasingly minute degree; and the theory is being developed to handle systems of ever-growing complexity. As usual, such multidisciplinarity leads to great opportunities, coupled with great problems of communication between specialists. It is in its promotion of interactions across these fields that Metal-Ligand Interactions: From Atoms, to Clusters, to Surfaces makes its timely contribution: the tools, both theoretical and experimental, are highly developed, and fundamental questions remain unanswered. The most fundamental of these concerns the nature of the microscopic interactions between metal atoms (clusters, surfaces) and ligands (atoms, molecules, absorbates, reagents, products) and the changes in these interactions during physical and chemical transformation. In Metal-Ligand Interactions, leading experts discuss the following, vital aspects: ab initio theory, semi-empirical theory, density functional theory, complexes and clusters, surfaces, and catalysis.

Density Functional Theory of Molecules, Clusters, and Solids

Author : D.E. Ellis
Publisher : Springer Science & Business Media
ISBN 13 : 9401104875
Total Pages : 321 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Density Functional Theory of Molecules, Clusters, and Solids by : D.E. Ellis

Download or read book Density Functional Theory of Molecules, Clusters, and Solids written by D.E. Ellis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid advances are taking place in the application of density functional theory (DFT) to describe complex electronic structures, to accurately treat large systems and to predict physical and chemical properties. Both theoretical content and computational methodology are developing at a pace which offers researchers new opportunities in areas such as quantum chemistry, cluster science, and solid state physics. This volume contains ten contributions by leading scientists in the field and provides an authoritative overview of the most important developments. The book focuses on the following themes: determining adequate approximations for the many-body problem of electronic correlations; how to transform these approximations into computational algorithms; applications to discover and predict properties of electronic systems; and developing the theory. For researchers in surface chemistry, catalysis, ceramics and inorganic chemistry.

Growth and Properties of Metal Clusters: Applications to Catalysis and the Photographic Process - International Conference Proceedings

Download Growth and Properties of Metal Clusters: Applications to Catalysis and the Photographic Process - International Conference Proceedings PDF Online Free

Author : Jean Bourdon
Publisher : Elsevier
ISBN 13 : 0080954308
Total Pages : 569 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Growth and Properties of Metal Clusters: Applications to Catalysis and the Photographic Process - International Conference Proceedings by : Jean Bourdon

Download or read book Growth and Properties of Metal Clusters: Applications to Catalysis and the Photographic Process - International Conference Proceedings written by Jean Bourdon and published by Elsevier. This book was released on 2000-04-01 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growth and Properties of Metal Clusters: Applications to Catalysis and the Photographic Process - International Conference Proceedings

Metal-Metal Bonds and Clusters in Chemistry and Catalysis

Author : John P. Fackler Jr.
Publisher : Springer Science & Business Media
ISBN 13 : 1489924922
Total Pages : 344 pages
Book Rating : 4.4/5 (899 download)

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Book Synopsis Metal-Metal Bonds and Clusters in Chemistry and Catalysis by : John P. Fackler Jr.

Download or read book Metal-Metal Bonds and Clusters in Chemistry and Catalysis written by John P. Fackler Jr. and published by Springer Science & Business Media. This book was released on 2013-11-22 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a series of papers and abstracts from the 7th Industry-University Cooperative Chemistry Program symposium held in the spring of 1989 at Texas A&M University. The symposium was larger than previous IUCCP symposia since it also celebrated the 25 years that had elapsed since the initial discovery by F. A. Cotton and his co-workers of the existence of metal-metal quadruple bonds. Cotton's discovery demonstrated that multiple bonding in inorganic systems is not governed by the same constraints observed in organic chemistry regarding s and p orbital involvement. The d orbitals are involved in the multiple bonding description. The quadruple bond involves considerable d orbital overlap between adjacent metal centers. Part I of this series of papers focuses upon the impact of this discovery and describes further contributions to the development of the field. Multiple metal-metal bonding now is known to permeate broad areas of transition metal chemistry. The understanding of metal-metal bonding that developed as a result of the discovery of multiple metal-metal bonding awakened a new chemistry involving metal clusters. Clusters were defined by Cotton to be species containing metal-metal bonding. Clusters in catalysis therefore seemed a logical grouping of papers in this symposium. Clusters play an every increasing role in the control of chemical reactions. Part II of this book describes some of the interesting new developments in this field. In Part III the papers examine the role clusters play in describing and understanding solid state materials.

The Physics and Chemistry of Clusters

Author : Eleanor E. B. Campbell
Publisher : World Scientific Publishing Company Incorporated
ISBN 13 : 9789810245290
Total Pages : 326 pages
Book Rating : 4.2/5 (452 download)

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Book Synopsis The Physics and Chemistry of Clusters by : Eleanor E. B. Campbell

Download or read book The Physics and Chemistry of Clusters written by Eleanor E. B. Campbell and published by World Scientific Publishing Company Incorporated. This book was released on 2001 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research into the physical and chemical properties of clusters is presently very active. This timely volume collects contributions from the leading scientists actively working in the field of the spectroscopy (time- and frequency-resolved), structure, dynamics, reactivity, and applications of clusters.

Etude de la liaison chimique dans les clusters organométalliques et réarrangement de ligands

Author : Abdelatif Messaoudi
Publisher :
ISBN 13 :
Total Pages : 209 pages
Book Rating : 4.:/5 (493 download)

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Book Synopsis Etude de la liaison chimique dans les clusters organométalliques et réarrangement de ligands by : Abdelatif Messaoudi

Download or read book Etude de la liaison chimique dans les clusters organométalliques et réarrangement de ligands written by Abdelatif Messaoudi and published by . This book was released on 2006 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce manuscrit, essentiellement basé sur des études théoriques (Calculs EHT et DFT), est divisé en deux parties. La première partie est consacrée à l’étude de la structure électronique et des liaisons chimique dans des édifices polymétalliques. Diverses approches sont présentées, en particulier l’analogie isolobale. La deuxième partie concerne essentiellement des études de réactivité. Elle se décliné en cinq chapitres; Le 1er traite l’étude d’un fil moléculaire à liaisons Ag-Pd, suivi d’une étude de la migration intermétallique d’un ligand silyle. Le 3ème chapitre concerne un réarrangement Pseudo-Hofmann sur un cluster de ruthenuim. Les deux derniers s’intéressent plus particulièrement à une chimie de ligands, d’une part l’étude d’un radical cationique obtenu par réaction de dimérisation d’un noyau quinonique, d’autre part le phénomène de tautomérie concernant une phosphine amino-thiazoline.

Electronic Properties of Solids Using Cluster Methods

Author : T.A. Kaplan
Publisher : Springer Science & Business Media
ISBN 13 : 0306470632
Total Pages : 205 pages
Book Rating : 4.3/5 (64 download)

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Book Synopsis Electronic Properties of Solids Using Cluster Methods by : T.A. Kaplan

Download or read book Electronic Properties of Solids Using Cluster Methods written by T.A. Kaplan and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a Summer School at Michigan State University held in East Lansing, Michigan, July 17-19, 1994

Advances in the Theory of Atomic and Molecular Systems

Author : Piotr Piecuch
Publisher : Springer Science & Business Media
ISBN 13 : 9048129850
Total Pages : 288 pages
Book Rating : 4.0/5 (481 download)

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Book Synopsis Advances in the Theory of Atomic and Molecular Systems by : Piotr Piecuch

Download or read book Advances in the Theory of Atomic and Molecular Systems written by Piotr Piecuch and published by Springer Science & Business Media. This book was released on 2009-09-30 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in the Theory of Atomic and Molecular Systems, is a collection of contributions presenting recent theoretical and computational developments that provide new insights into the structure, properties, and behavior of a variety of atomic and molecular systems. This volume (subtitled “Dynamics, Spectroscopy, Clusters, and Nanostructures”) deals with the topics of “Quantum Dynamics and Spectroscopy”, “Complexes and Clusters”, and “Nanostructures and Complex Systems”. This volume is an invaluable resource for faculty, graduate students, and researchers interested in theoretical and computational chemistry and physics, physical chemistry and chemical physics, molecular spectroscopy, and related areas of science and engineering.