Metal Oxygen Clusters

Author : John B. Moffat
Publisher : Springer Science & Business Media
Page : 318 pages
File Size : 40,7 Mb
Release : 2005-12-11
Category : Science
ISBN : 9780306473784

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Metal-Oxygen Clusters by John B. Moffat Pdf

Metal-Oxygen Clusters is the first book, providing an overview of the surface chemistry and catalytic properties of heteropoly oxometalates. After a brief look at the early knowledge of heteropoly oxometalates, the book discusses the synthesis, characterization, structure, bulk properties and stability of these materials. The remainder and the largest portion of the book explores the properties of these solids as catalysts in acid-catalyzed and oxidation processes in supported or unsupported forms. The book provides an up-to-date review of the methods for synthesizing heteropoly oxometalates of Keggin structure, techniques from spectroscopic through electrochemical to elemental analysis for their characterization and the current information on their structure, bulk properties and their stabilities at high temperatures and under acid and alkaline conditions. The book discusses the materials employed as supports for the title solid and the results of the examination of the supported materials. Methods for the identification of the nature and source of the two catalytic functions, the acidic and oxidative properties, of the heteropoly oxometalates are reviewed and discussed. The use of both the supported and unsupported heteropoly oxometalates as catalysts in acidity-requisite processes ranging from methanol conversion to hydrocarbons to ring-expansion and contraction processes and in oxidation processes from methane cyclohexane are described and related to the aforementioned properties.

Author : John B. Moffat
Publisher : Unknown
Page : 328 pages
File Size : 47,8 Mb
Release : 2014-01-15
Category : Electronic
ISBN : 1475774788

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Metal-Oxygen Clusters by John B. Moffat Pdf

Author : Zhixun Luo,Shiv N. Khanna
Publisher : Springer Nature
Page : 267 pages
File Size : 44,5 Mb
Release : 2020-10-31
Category : Science
ISBN : 9789811597046

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Metal Clusters and Their Reactivity by Zhixun Luo,Shiv N. Khanna Pdf

This book discusses current techniques and instrumentation for cluster chemistry. It addresses both the experimental and theoretical aspects of gas-phase metal cluster reactivities, especially those pertaining to pollution removal, energetic reactions and corrosion and anticorrosion. These metal cluster systems have attracted enormous interest as they display a completely new class of physical, chemical, electronic, magnetic and catalytic properties. As these properties change with size and composition, it can thus be understood how their nature evolves from atoms to bulk solids. The book offers readers a basic understanding of the structural chemistry and reactivity of metal clusters in both gas-phase and wet chemistry. Further, the lessons they learn here regarding metal cluster chemistry will prepare researchers for the study of condensed phase dynamics that pertain to wet chemical synthesis, soft-landing deposition and cluster assembly.

Author : Shuang-Quan Zang
Publisher : John Wiley & Sons
Page : 338 pages
File Size : 52,8 Mb
Release : 2024-07-29
Category : Science
ISBN : 9783527352104

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Atomically Precise Metal Clusters by Shuang-Quan Zang Pdf

Atomically Precise Metal Clusters Thorough discussion on how surface modification and self-assembly play roles in the atomically precise formation and property tailoring of molecular clusters Atomically Precise Metal Clusters: Surface Engineering and Hierarchical Assembly summarizes and discusses the surface modification, assembly, and property tailoring of a wide variety of nanoclusters, including the well-explored metal clusters, addressing the structure–property relationships throughout. The atomic-level control in synthesis, new types of structures, and physical/chemical properties of nanoclusters are illustrated in various chapters. The controlled modification and assembly of metal nanoclusters is expected to have a major impact on future nanoscience research and other areas, with distinctive metal cluster-based function materials with precise structures uncovering exciting opportunities in both fundamental research and practical applications. Written by a highly qualified academic with significant research experience in the field, Atomically Precise Metal Clusters includes information on: Ligand engineering and assembly of coinage metal nanoclusters such as gold, silver, and copper Recent advances in post-modification of polyoxometalates and small transition metal chalcogenide superatom clusters Synthesis and assembly of cadmium chalcogenide supertetrahedral clusters and modification and assembly of Fe-S clusters Indium phosphide magic-sized clusters, ligand-tailoring platinum and palladium clusters, and metal oxo clusters (MOCs) Enabling access to desired functions in metal clusters for catalysis, optics, biomedicine, and other fields through surface engineering and supramolecular assembly A timely and comprehensive book that summarizes the recent progress in the surface modification and self-assembly of metal nanoclusters, Atomically Precise Metal Clusters provides essential guidance for graduate students and advanced researchers in material science, chemistry, biomedicine, and other disciplines.

Author : Anonim
Publisher : Academic Press
Page : 358 pages
File Size : 53,7 Mb
Release : 2017-02-17
Category : Science
ISBN : 9780128111062

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Polyoxometalate Chemistry by Anonim Pdf

Polyoxometalate Chemistry continues a long-running series that describes recent advances in scientific research, in particular, in the field of inorganic chemistry. Several highly regarded experts, mostly from academia, contribute on specific topics. The current issue focuses on recent advances in the development and application of polyoxometalate complexes in areas such as solution chemistry, self-organization, solar fuels, non-aqueous chemistry, spintronics, nanoscience and catalysis. Presents a single monograph on recent developments in polyoxometalate chemistry as written by scientific leaders in this field Concise and informative presentations cover a wide range of topics in this field of chemistry Contains detailed literature references, enabling the reader to move on to the source of the reported work where more details can be found Provides a solid presentation of a hard-cover book of excellent technical quality

Author : R.M. Lambert,Gianfranco Pacchioni
Publisher : Springer Science & Business Media
Page : 534 pages
File Size : 40,7 Mb
Release : 2013-04-17
Category : Science
ISBN : 9789401589116

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Chemisorption and Reactivity on Supported Clusters and Thin Films: by R.M. Lambert,Gianfranco Pacchioni Pdf

Heterogeneous catalysis provides the backbone of the world's chemical and oil industries. The innate complexity of practical catalytic systems suggests that useful progress should be achievable by investigating key aspects of catalysis by experimental studies on idealised model systems. Thin films and supported clusters are two promising types of model system that can be used for this purpose, since they mimic important aspects of the properties of practical dispersed catalysts. Similarly, appropriate theoretical studies of chemisorption and surface reaction clusters or extended slab systems can provide valuable information on the factors that underlie bonding and catalytic activity. This volume describes such experimental and theoretical approaches to the surface chemistry and catalytic behaviour of metals, metal oxides and metal/metal oxide systems. An introduction to the principles and main themes of heterogeneous catalysis is followed by detailed accounts of the application of modern experimental and theoretical techniques to fundamental problems. The application of advanced experimental methods is complemented by a full description of theoretical procedures, including Hartree-Fock, density functional and similar techniques. The relative merits of the various approaches are considered and directions for future progress are indicated.

Author : Hellmut Haberland
Publisher : Springer Science & Business Media
Page : 435 pages
File Size : 48,9 Mb
Release : 2013-11-11
Category : Science
ISBN : 9783642843297

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Clusters of Atoms and Molecules by Hellmut Haberland Pdf

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.

Author : M.A. Duncan
Publisher : Elsevier
Page : 412 pages
File Size : 48,8 Mb
Release : 2001-07-10
Category : Science
ISBN : 0080496571

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Advances in Metal and Semiconductor Clusters by M.A. Duncan Pdf

In previous volumes in this series, Advances in Metal and Semiconductor Clusters, the focus has been on atomic clusters of metals, semiconductors and carbon. Fundamental gas phase studies have been surveyed, and most recently scientists have explored new materials which can be produced from clusters or cluster precursors. In this latest volume, the focus shifts to clusters composed primarily of non-metal molecules or atoms which have one or more metal atoms seeded into the cluster as an impurity. These clusters provide model systems for metal ion solvation processes and metal-ligand interactions. Metal-ligand bonding underlies the vast fields of organometallic chemistry, transition metal chemistry and homogeneous catalysis. Catalytic activity, ligand displacement reactions and photochemical activity depend on the specific details of metal-ligand bonding. Likewise, metal ions are ubiquitous in chemistry and biology and weaker electrostatic interactions play a leading role in their function. In solution, metals exist in different charge states depending on the conditions, and the solvation environment strongly influences their chemistry. Many enzymes have metal ions at their active sites, and electrostatic interactions influence the selectivity for metal ion transport through cell membranes. Metal ions (e.g., Mg+, Ca+) are deposited into the earth's atmosphere by meteor ablation, resulting in a rich variety of atmospheric chemistry. Similarly, metal ions ( Mg+) have been observed in planetary atmospheres and in the impact of the comet Shoemaker-Levy 9 on Jupiter. In various circumstances, the electrostatic interactions of metal ions determine the outcome of significant chemistry. Cluster chemistry has made significant contributions to the understanding of these stronger metal ligand interactions and weaker metal ion solvation interactions. In this volume, the authors explore a variety of work in these general areas, where new cluster science techniques in the gas phase have made it possible to synthesize new kinds of complexes with metals and to measure their properties in detail.

Author : Pierre Braunstein,Luis A. Oro,Paul R. Raithby
Publisher : Wiley-VCH
Page : 568 pages
File Size : 47,9 Mb
Release : 2000-01-11
Category : Science
ISBN : 3527295496

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Metal Clusters in Chemistry by Pierre Braunstein,Luis A. Oro,Paul R. Raithby Pdf

Metal cluster chemistry is at the cutting edge between molecular and solid-state chemistry and has therefore had a great impact on the researchers working on organic, coordination, and solid-state chemistry, catalysis, physics, and materials science. The development of new sophisticated synthetic techniques has led to enormous progress in the synthesis of this diverse class of compounds. The number of clusters is growing rapidly, since the possible variations in the metal and ligand sphere are numerous. Modern bonding theories, such as the isolobal principle, have allowed a better understanding of the structures and properties of metal clusters, and thus paved the way for the usage of these versatile materials. Catalysis and nanomaterials are just two of the very promising application-oriented fields. Seventy six contributions, written by world experts in this research field, provide extensive coverage of different aspects of cluster chemistry, ranging from synthesis, structure determination, and dynamics to applications. Up-to-date information, including an impressive collection of structural data and illustrations, extensive coverage of the most important publications of the last decade, and many more features make this three-volume set a complete single-source guide for all researchers working in the area of cluster chemistry.

Author : George Maroulis
Publisher : CRC Press
Page : 213 pages
File Size : 44,9 Mb
Release : 2006-10-27
Category : Mathematics
ISBN : 9789067644563

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Structure and Properties of Clusters: from a few Atoms to Nanoparticles by George Maroulis Pdf

This volume on Clusters brings together contributions from a large number of specialists. A central element for all contributions is the use of advanced computational methodologies and their application to various aspects of structure, reactivity and properties of clusters. The size of clusters varies from a few atoms to nanoparticles. Special emphasis is given to bringing forth new insights on the structure and properties of these systems with an eye towards potential applications in Materials Science. Overal, the volume presents to the readers an amazing wealth of new results. Particular subjects include water clusters, Silicon, Iron, Nickel and Gold clusters, carbon-titanium microclusters and nanoparticles, fullerenes, carbon nanotubes, chiral carbon nanotubes, boron nanoclusters and more.

Author : S. David Jackson,Justin S. J. Hargreaves
Publisher : John Wiley & Sons
Page : 887 pages
File Size : 47,5 Mb
Release : 2008-12-23
Category : Science
ISBN : 9783527626120

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Metal Oxide Catalysis, 2 Volume Set by S. David Jackson,Justin S. J. Hargreaves Pdf

With its two-volume structure, this handbook and ready reference allows for comprehensive coverage of both characterization and applications, while uniform editing throughout ensures that the structure remains consistent. The result is an up-to-date review of metal oxides in catalysis. The first volume covers a range of techniques that are used to characterize oxides, with each chapter written by an expert in the field. Volume 2 goes on to cover the use of metal oxides in catalytic reactions. For all chemists and engineers working in the field of heterogeneous catalysis.

Author : Michael Thor Pope,Achim M]ller
Publisher : Springer Science & Business Media
Page : 432 pages
File Size : 40,9 Mb
Release : 1994-01-31
Category : Science
ISBN : 0792324218

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Polyoxometalates: From Platonic Solids to Anti-Retroviral Activity by Michael Thor Pope,Achim M]ller Pdf

MICHAEL T. POPE AND ACHIM MULLER Department of Chemistry, Georgetown University, Washington, DC 20057-2222, U.S.A.; Department of Chemistry, University of Bielefeld, D-4BOO Bielefeld 1, F.R.G. Polyoxometalates, from their discovery and early development in the final decades of the 19th century to their current significance in disciplines as diverse as chemistry, mathematics, and medicine, continue to display surprisingly novel structures, unexpected reactivities and applications, and to attract increasing attention worldwide. Most of the contributors to the present volume participated in the workshop held at the Center for Interdisciplinary Research at the University of Bielefeld, July 15-17, 1992. The choice of topics illustrates some of the variety of directions and fields in which polyoxometalates can play an important role. Although many of the leading polyoxometalate research groups are represented here, we regret that time constraints, financial limitations, and in some cases difficulties of communication did not allow us to include significant and imp- tant work from other groups outside Europe and North America. In the following we briefly review the current status of the field of po- oxometalates.

Author : R. Bruce King
Publisher : CRC Press
Page : 250 pages
File Size : 51,8 Mb
Release : 1992-12-01
Category : Science
ISBN : 0849342988

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Applications of Graph Theory and Topology in Inorganic Cluster and Coordination Chemistry by R. Bruce King Pdf

Applications of Graph Theory and Topology in Inorganic Cluster and Coordination Chemistry is a text-reference that provides inorganic chemists with a rudimentary knowledge of topology, graph theory, and related mathematical disciplines. The book emphasizes the application of these topics to metal clusters and coordination compounds. The book's initial chapters present background information in topology, graph theory, and group theory, explaining how these topics relate to the properties of atomic orbitals and are applied to coordination polyhedra. Subsequent chapters apply these ideas to the structure and chemical bonding in diverse types of inorganic compounds, including boron cages, metal clusters, solid state materials, metal oxide derivatives, superconductors, icosahedral phases, and carbon cages (fullerenes). The book's final chapter introduces the application of topology and graph theory for studying the dynamics of rearrangements in coordination and cluster polyhedra.

Author : Jesse Frederick Goellner
Publisher : Unknown
Page : 798 pages
File Size : 49,5 Mb
Release : 2000
Category : Electronic
ISBN : UCAL:X60943

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Synthesis, Characterization, and Catalysis of Supported Site-isolated Metal Clusters by Jesse Frederick Goellner Pdf

Author : Pierre Braunstein,Luis A. Oro,Paul R. Raithby
Publisher : Wiley-VCH
Page : 568 pages
File Size : 47,9 Mb
Release : 2000-01-11
Category : Science
ISBN : 3527295496

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Metal Clusters in Chemistry by Pierre Braunstein,Luis A. Oro,Paul R. Raithby Pdf

Metal cluster chemistry is at the cutting edge between molecular and solid-state chemistry and has therefore had a great impact on the researchers working on organic, coordination, and solid-state chemistry, catalysis, physics, and materials science. The development of new sophisticated synthetic techniques has led to enormous progress in the synthesis of this diverse class of compounds. The number of clusters is growing rapidly, since the possible variations in the metal and ligand sphere are numerous. Modern bonding theories, such as the isolobal principle, have allowed a better understanding of the structures and properties of metal clusters, and thus paved the way for the usage of these versatile materials. Catalysis and nanomaterials are just two of the very promising application-oriented fields. Seventy six contributions, written by world experts in this research field, provide extensive coverage of different aspects of cluster chemistry, ranging from synthesis, structure determination, and dynamics to applications. Up-to-date information, including an impressive collection of structural data and illustrations, extensive coverage of the most important publications of the last decade, and many more features make this three-volume set a complete single-source guide for all researchers working in the area of cluster chemistry.