Magnetic Properties Of Some Metal Clusters

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Calculated Electronic Properties of Metals

Author : V. L. Moruzzi
Publisher : Elsevier
ISBN 13 : 1483152081
Total Pages : 197 pages
Book Rating : 4.4/5 (831 download)

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Book Synopsis Calculated Electronic Properties of Metals by : V. L. Moruzzi

Download or read book Calculated Electronic Properties of Metals written by V. L. Moruzzi and published by Elsevier. This book was released on 2013-10-22 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calculated Electronic Properties of Metals covers the significant advances in understanding of condensed systems containing many atoms. This book is divided into five chapters that specifically present electronic property calculations based on three fundamental approximations, namely, the local density treatment of electronic exchange and correlation, the "muffin-tin" approximation, and the neglect of relativistic effects. These approximations limit the range of systems for which these calculations can be expected to be accurate to metals comprised of atoms possessing fewer that approximately 50 protons. A chapter focuses on the calculation of electron and state densities of numerous metals. The concluding chapter describes the results of spin-polarized energy-band calculations for iron, cobalt, and nickel. This book will prove useful to chemists, researchers, and students.

Magnetic Properties of Transition Metal Compounds

Author : R. L. Carlin
Publisher : Springer Science & Business Media
ISBN 13 : 3642873928
Total Pages : 276 pages
Book Rating : 4.6/5 (428 download)

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Book Synopsis Magnetic Properties of Transition Metal Compounds by : R. L. Carlin

Download or read book Magnetic Properties of Transition Metal Compounds written by R. L. Carlin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a textbook of what is often called magnetochemistry. We take the point of view that magnetic phenomena are interesting because of what they tell us about chemical systems. Yet, we believe it is no longer tenable to write only about such subjects as distinguishing stereochemistry from the measurement of a magnetic susceptibility over a restricted temper ature region; that is, paramagnetism is so well-understood that little remains to explore which is of fundamental interest. The major purpose of this book is to direct chemists to some of the recent work of physicists, and in particular to a lengthy exposition of magnetic ordering phenomena. Chemists have long been interested in magnetic interactions in clusters, but many have shied away from long-range ordering phenomena. Now however more people are investigating magnetic behavior at temperatures in the liquid helium region, where ordering phenomena can scarcely be avoided. The emphasis is on complexes of the iron-series ions, for this is where most of the recent work, both experimental and theoretical, has been done. The discussion therefore is limited to insulating crystals; the nature of magnetism in metals and such materials as semiconductors is sufficiently different that a discussion of these substances is beyond our purposes. The book is directed more at the practical experimentalist than at the theoretician.

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.

Atomic- and Nanoscale Magnetism

Author : Roland Wiesendanger
Publisher : Springer
ISBN 13 : 3319995588
Total Pages : 400 pages
Book Rating : 4.3/5 (199 download)

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Book Synopsis Atomic- and Nanoscale Magnetism by : Roland Wiesendanger

Download or read book Atomic- and Nanoscale Magnetism written by Roland Wiesendanger and published by Springer. This book was released on 2018-11-02 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of the fascinating recent developments in atomic- and nanoscale magnetism, including the physics of individual magnetic adatoms and single spins, the synthesis of molecular magnets for spintronic applications, and the magnetic properties of small clusters as well as non-collinear spin textures, such as spin spirals and magnetic skyrmions in ultrathin films and nanostructures. Starting from the level of atomic-scale magnetic interactions, the book addresses the emergence of many-body states in quantum magnetism and complex spin states resulting from the competition of such interactions, both experimentally and theoretically. It also introduces novel microscopic and spectroscopic techniques to reveal the exciting physics of magnetic adatom arrays and nanostructures at ultimate spatial and temporal resolution and demonstrates their applications using various insightful examples. The book is intended for researchers and graduate students interested in recent developments of one of the most fascinating fields of condensed matter physics.

Structure and Properties of Atomic Nanoclusters

Author : Julio A. Alonso
Publisher : World Scientific
ISBN 13 : 1848167334
Total Pages : 492 pages
Book Rating : 4.8/5 (481 download)

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Book Synopsis Structure and Properties of Atomic Nanoclusters by : Julio A. Alonso

Download or read book Structure and Properties of Atomic Nanoclusters written by Julio A. Alonso and published by World Scientific. This book was released on 2012 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atomic clusters are aggregates of atoms containing a few to several thousand atoms. Due to the small size of these pieces of matter, the properties of atomic clusters in general are different from those of the corresponding material in the macroscopic bulk phase. This monograph presents the main developments of atomic clusters and the current status of the field. The book treats different types of clusters with very different properties: clusters in which the atoms or molecules are tied by weak van der Waals interactions, metallic clusters, clusters of ionic materials, and network clusters made of typical covalent elements. It includes methods of experimental cluster synthesis as well as the structural, electronic, thermodynamic and magnetic properties of clusters, covering both experiments and the theoretical work that has led to our present understanding of the different properties of clusters. The question of assembling nanoclusters to form solids with new properties is also considered. Having an adequate knowledge of the properties of clusters can be of great help to any scientist working with objects of nanometric size. On the other hand, nanoclusters are themselves potentially important in fields like catalysis and nanomedicine.

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

A Textbook of Inorganic Chemistry – Volume 1

Author : Mandeep Dalal
Publisher : Dalal Institute
ISBN 13 : 8193872002
Total Pages : 482 pages
Book Rating : 4.1/5 (938 download)

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Book Synopsis A Textbook of Inorganic Chemistry – Volume 1 by : Mandeep Dalal

Download or read book A Textbook of Inorganic Chemistry – Volume 1 written by Mandeep Dalal and published by Dalal Institute. This book was released on 2017-01-01 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: An advanced-level textbook of inorganic chemistry for the graduate (B.Sc) and postgraduate (M.Sc) students of Indian and foreign universities. This book is a part of four volume series, entitled "A Textbook of Inorganic Chemistry – Volume I, II, III, IV". CONTENTS: Chapter 1. Stereochemistry and Bonding in Main Group Compounds: VSEPR theory; dπ -pπ bonds; Bent rule and energetic of hybridization. Chapter 2. Metal-Ligand Equilibria in Solution: Stepwise and overall formation constants and their interactions; Trends in stepwise constants; Factors affecting stability of metal complexes with reference to the nature of metal ion and ligand; Chelate effect and its thermodynamic origin; Determination of binary formation constants by pH-metry and spectrophotometry. Chapter 3. Reaction Mechanism of Transition Metal Complexes – I: Inert and labile complexes; Mechanisms for ligand replacement reactions; Formation of complexes from aquo ions; Ligand displacement reactions in octahedral complexes- acid hydrolysis, base hydrolysis; Racemization of tris chelate complexes; Electrophilic attack on ligands. Chapter 4. Reaction Mechanism of Transition Metal Complexes – II: Mechanism of ligand displacement reactions in square planar complexes; The trans effect; Theories of trans effect; Mechanism of electron transfer reactions – types; outer sphere electron transfer mechanism and inner sphere electron transfer mechanism; Electron exchange. Chapter 5. Isopoly and Heteropoly Acids and Salts: Isopoly and Heteropoly acids and salts of Mo and W: structures of isopoly and heteropoly anions. Chapter 6. Crystal Structures: Structures of some binary and ternary compounds such as fluorite, antifluorite, rutile, antirutile, crystobalite, layer lattices- CdI2, BiI3; ReO3, Mn2O3, corundum, pervoskite, Ilmenite and Calcite. Chapter 7. Metal-Ligand Bonding: Limitation of crystal field theory; Molecular orbital theory: octahedral, tetrahedral or square planar complexes; π-bonding and molecular orbital theory. Chapter 8. Electronic Spectra of Transition Metal Complexes: Spectroscopic ground states, Correlation and spin-orbit coupling in free ions for Ist series of transition metals; Orgel and Tanabe-Sugano diagrams for transition metal complexes (d1 – d9 states); Calculation of Dq, B and β parameters; Effect of distortion on the d-orbital energy levels; Structural evidence from electronic spectrum; John-Tellar effect; Spectrochemical and nephalauxetic series; Charge transfer spectra; Electronic spectra of molecular addition compounds. Chapter 9. Magantic Properties of Transition Metal Complexes: Elementary theory of magneto - chemistry; Guoy’s method for determination of magnetic susceptibility; Calculation of magnetic moments; Magnetic properties of free ions; Orbital contribution, effect of ligand-field; Application of magneto-chemistry in structure determination; Magnetic exchange coupling and spin state cross over. Chapter 10. Metal Clusters: Structure and bonding in higher boranes; Wade’s rules; Carboranes; Metal carbonyl clusters - low nuclearity carbonyl clusters; Total electron count (TEC). Chapter 11. Metal-π Complexes: Metal carbonyls: structure and bonding; Vibrational spectra of metal carbonyls for bonding and structure elucidation; Important reactions of metal carbonyls; Preparation, bonding, structure and important reactions of transition metal nitrosyl, dinitrogen and dioxygen complexes; Tertiary phosphine as ligand.

Research Frontiers in Magnetochemistry

Author : Charles J. O'Connor
Publisher : World Scientific
ISBN 13 : 9789810212469
Total Pages : 428 pages
Book Rating : 4.2/5 (124 download)

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Book Synopsis Research Frontiers in Magnetochemistry by : Charles J. O'Connor

Download or read book Research Frontiers in Magnetochemistry written by Charles J. O'Connor and published by World Scientific. This book was released on 1993 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past 25 years, there have been many advances in the understanding of magnetic phenomena in molecular systems. For example, a variety of low-dimensional materials, and many new ferromagnetic, antiferromagnetic, and ferrimagnetic systems have been synthesized and analyzed; metal cluster compounds that exhibit magnetic exchange have been examined; new orbital overlap theories have been proposed to explain magneto-structural correlations in exchange coupled systems; and efforts directed toward the preparation of an organic ferromagnetic material have produced new and interesting compounds. There have also been many advances in the use of magnetism as a probe of inorganic biomolecules.This volume brings together reviews of current research in magnetochemistry that are written by the world's leading researchers in the fields of chemistry, physics, materials science, and magnetism. It contains comprehensive and in-depth reviews that describe some of the current activities of these scientists and their research and lays the foundation for future research endeavors.

Modification of Magnetic Properties of Iron Clusters by Doping and Adsorption

Author : Gennady L. Gutsev
Publisher : Springer
ISBN 13 : 331927886X
Total Pages : 85 pages
Book Rating : 4.3/5 (192 download)

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Book Synopsis Modification of Magnetic Properties of Iron Clusters by Doping and Adsorption by : Gennady L. Gutsev

Download or read book Modification of Magnetic Properties of Iron Clusters by Doping and Adsorption written by Gennady L. Gutsev and published by Springer. This book was released on 2015-12-31 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: This brief is based on computations performed on unary neutral and charged iron clusters, binary iron clusters, and iron clusters interacting with carbon and oxygen atoms as well as with a number of diatomics and water. The author considers geometrical structure, thermodynamic stability and electronic properties which are compared with experimental data. Special attention is paid to the dependence of total spin magnetic moments of iron clusters on their size, charge and interactions with dopant and absorbed atoms. In the dopant case, species such as 3d-metal, 4d-metal, Al, and Gd atoms are considered. In the adsorption case interactions of carbon atoms with iron clusters as the initial stage of catalyzed carbon nanotube growth are presented. Interactions of iron clusters with oxygen atoms are presented and the superexchange mechanism is discussed. Of special interest is the tracking of changes due to the evolution from a few atoms to a nanocluster.

Aromaticity and Metal Clusters

Author : Pratim Kumar Chattaraj
Publisher : CRC Press
ISBN 13 : 9781439813355
Total Pages : 466 pages
Book Rating : 4.8/5 (133 download)

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Book Synopsis Aromaticity and Metal Clusters by : Pratim Kumar Chattaraj

Download or read book Aromaticity and Metal Clusters written by Pratim Kumar Chattaraj and published by CRC Press. This book was released on 2010-10-15 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal clusters, an intermediate state between molecules and the extended solid, show peculiar bonding and reactivity patterns. Their significance is critical to many areas, including air pollution, interstellar matter, clay minerals, photography, catalysis, quantum dots, and virus crystals. In Aromaticity and Metal Clusters, dozens of international experts explore not only the basic aspects of aromaticity, but also the structures, properties, reactivity, stability, and other consequences of the aromaticity of a variety of metal clusters. Although the concept of aromaticity has been known for nearly two centuries, there is no way to measure it experimentally and no theoretical formula to calculate it. In order to gain insight into its exact nature, the authors of this volume examine various indirect characteristics such as geometrical, electronic, magnetic, thermodynamic, and reactivity considerations. The book begins by discussing the evolution of aromaticity from benzene to atomic clusters. Next, more specialized chapters focus on areas of significant interest. Topics discussed include: Computational studies on molecules with unusual aromaticity Electronic shells and magnetism in small metal clusters A density functional investigation on the structures, energetics, and properties of sodium clusters through electrostatic guidelines and molecular tailoring The correlation between electron delocalization and ring currents in all metallic aromatic compounds Phenomenological shell model and aromaticity in metal clusters Rationalizing the aromaticity indexes used to describe the aromatic behavior of metal clusters 5f orbital successive aromatic and antiaromatic zones in triangular uranium cluster chemistry This collection of diverse contributions, composed of the work of scientists worldwide, is destined to not only answer puzzling questions about the nature of aromaticity, but also to provoke further inquiry in the minds of researchers.

The Chemistry of Nanostructured Materials

Author : Peidong Yang
Publisher : World Scientific
ISBN 13 : 981431305X
Total Pages : 338 pages
Book Rating : 4.8/5 (143 download)

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Book Synopsis The Chemistry of Nanostructured Materials by : Peidong Yang

Download or read book The Chemistry of Nanostructured Materials written by Peidong Yang and published by World Scientific. This book was released on 2011 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a sequel to the first volume of The Chemistry of Nanostructured Materials. It covers the most exciting developments in the nanostructured materials field for the past five to ten years, with a particular focus on their applications in energy conversion and energy storage. Prominent authors of recognized authority in the field contribute their expertise in the review chapters.

Lectures On Methods Of Electronic Structure Calculations - Proceedings Of The Miniworkshop On "Methods Of Electronic Structure Calculations" And Working Group On "Disordered Alloys"

Download Lectures On Methods Of Electronic Structure Calculations - Proceedings Of The Miniworkshop On

Author : Ole Krogh Andersen
Publisher : World Scientific
ISBN 13 : 9814583278
Total Pages : 396 pages
Book Rating : 4.8/5 (145 download)

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Book Synopsis Lectures On Methods Of Electronic Structure Calculations - Proceedings Of The Miniworkshop On "Methods Of Electronic Structure Calculations" And Working Group On "Disordered Alloys" by : Ole Krogh Andersen

Download or read book Lectures On Methods Of Electronic Structure Calculations - Proceedings Of The Miniworkshop On "Methods Of Electronic Structure Calculations" And Working Group On "Disordered Alloys" written by Ole Krogh Andersen and published by World Scientific. This book was released on 1995-02-23 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developments in the density functional theory and the methods of electronic structure calculations have made it possible to carry out ab-initio studies of a variety of materials efficiently and at a predictable level. This book covers many of those state-of-the-art developments and their applications to ordered and disordered materials, surfaces and interfaces and clusters, etc.

Atomic Clusters

Author :
Publisher : Elsevier Science
ISBN 13 : 9780444527561
Total Pages : 648 pages
Book Rating : 4.5/5 (275 download)

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Book Synopsis Atomic Clusters by :

Download or read book Atomic Clusters written by and published by Elsevier Science. This book was released on 2007-06-07 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atomic Clusters: From Gas Phase to Deposited brings together a series of chapters, prepared by acknowledged experts in their fields. Both fundamental and practical aspects are addressed of the physics and chemistry of a novel state of matter, namely clusters of small numbers of atoms of nanometre dimensions. This is a field of nanoscience that existed before the word was invented, but has particularly achieved major advances in the recent years. * Contributions from leading experts in solid surfaces research * Cluster science is concerned with the properties of materials on the nano-metre scale * Brings together work on both free (gas-phase) clusters and those deposited on surfaces

New Trends in Magnetism, Magnetic Materials, and Their Applications

Author : J.L. Morán-López
Publisher : Springer Science & Business Media
ISBN 13 : 1489913343
Total Pages : 457 pages
Book Rating : 4.4/5 (899 download)

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Book Synopsis New Trends in Magnetism, Magnetic Materials, and Their Applications by : J.L. Morán-López

Download or read book New Trends in Magnetism, Magnetic Materials, and Their Applications written by J.L. Morán-López and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: During August 24-27, 1993, approximately 60 scientists from the Americas, Europe and Japan, gathered in the city of Guanajuato, in the state of Guanajuato, Mexico, at the II Latin American Workshop on Magnetism, Magnetic Materials and their Applications. The group of scientists converging into the beautiful city of Guanajuato had come from Argentina, Chile, Brazil, Venezuela, Cuba, several places in Mexico, U. S. A. , Japan, Spain, France, Italy, Germany, Austria, Switzerland, and Denmark. The event attested to the success of the previous Workshop on Magnetism, Magnetic Materials and their Applications, held in Havana, Cuba, in 1991, as well as to the interest, level of activity and quality of the work being carried out in Latin America in the area of magnetism and magnetic materials. Equally important to everyone present was the fact that we had come to honor a friend, Professor L. M. Falicov, on his sixtieth birthday. The choice of a Latin American Workshop on magnetism as a Festschrift for Leo Falicov was, in our opinion, quite appropriate not only because of Leo's strong ties to Latin America, but also because of his superb contributions to science, and in particular, to magnetism. Professor Falicov was born in Buenos Aires, Argentina, where he spent a good part of his formative years.

Magnetism: A Supramolecular Function

Author : O. Kahn
Publisher : Springer Science & Business Media
ISBN 13 : 9401587078
Total Pages : 657 pages
Book Rating : 4.4/5 (15 download)

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Book Synopsis Magnetism: A Supramolecular Function by : O. Kahn

Download or read book Magnetism: A Supramolecular Function written by O. Kahn and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 657 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular magnetism is a new field of research dealing with the synthesis and study of the physical properties of molecular assemblies involving open-shell units. It is essentially interdisciplinary, joining together organic, organometallic and inorganic chemists, as well as theoreticians, physicists and materials scientists. At the core of research into molecular magnetism lie design and synthesis of new molecular assemblies exhibiting bulk properties such as long-range magnetic ordering or bistability with an hysteresis effect, which confers a memory effect on the system. In such terms, magnetism may be considered a supramolecular function. The first eight contributions to this volume present the state of the art in organic supramolecular chemistry, emphasising interlocked systems and molecular trees. The following six articles are devoted to molecular materials constructed from organic radicals and transition metal units. Molecular bistability is then focused on, followed by metal-organic and coordination magnetic materials. A new approach to nano-sized particles closes the work.

Magnetic Properties of Metals

Author : H.P.J. Wijn
Publisher : Springer Science & Business Media
ISBN 13 : 3642582184
Total Pages : 202 pages
Book Rating : 4.6/5 (425 download)

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Book Synopsis Magnetic Properties of Metals by : H.P.J. Wijn

Download or read book Magnetic Properties of Metals written by H.P.J. Wijn and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last decades the knowledge of the magnetic properties of the d transition elements and of their metallic alloys and compounds has increased widely. The improvement of preparation techniques for well-defined substances, the development of sophisticated measuring methods and above all the drive to obtain more insight in the origin of magnetic interactions in solids have resulted in the publication of many specific magnetic properties for an abundance of all kinds of metallic materials. The data assembled in this booklet are selected from the comprehensive compilation of magnetic and related properties of metals in the Landolt-Bornstein New Series Group III sub volumes 19a, band c. It has been attempted to include preferentially those properties which are of a basic character and which therefore are most often needed by scientists active in the field of solid state magnetism. In the field of magnetism, there is a gradual transition from the use of cgs/emu units to SI units. It was, however, not intended to represent all data in the units of one system, regardless of how nice this would have been from a systematic point of view. Instead, mostly preference was given to the system of units that was originally used by the authors whose work is quoted. Thus cgs/ emu units occur most frequently. Of colirse the user of the tables and figures is helped in several ways to convert the data to the units which he is most familiar with, see, e. g.

Physics and Chemistry of Small Clusters

Author : P. Jena
Publisher : Springer Science & Business Media
ISBN 13 : 1475703570
Total Pages : 932 pages
Book Rating : 4.4/5 (757 download)

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Book Synopsis Physics and Chemistry of Small Clusters by : P. Jena

Download or read book Physics and Chemistry of Small Clusters written by P. Jena and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.