Polyoxometalate Molecular Science
Polyoxometalate Molecular Science

Author: Juan J. Borrás-Almenar

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 473

ISBN-13: 9401000913

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Polyoxometalates (POMs) form a large, distinctive class of molecular inorganic compounds of unrivaled electronic versatility and structural variation, with impacts ranging from chemistry, catalysis, and materials science to biology, and medicine. This book covers the basic principles governing the structure, bonding and reactivity of these metal-oxygen cluster anions and the major developments in their molecular science. The book comprises three sections. The first covers areas ranging from topological principles via synthesis and stability to reactivity in solution. It also focuses on the physical methods currently used to extract information on the molecular and electronic structures as well as the physical properties of these clusters. The second part reviews different types of POMs, focusing on those systems that currently impact other areas of interest, such as supramolecular chemistry, nanochemistry and molecular magnetism. The third section is devoted to POM-based materials and their applications and prospects in catalysis and materials science.

Polyoxometalates: From Platonic Solids to Anti-Retroviral Activity
Polyoxometalates: From Platonic Solids to Anti-Retroviral Activity

Author: M.T. Pope

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 409

ISBN-13: 9401109206

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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.

Applied Polyoxometalate-Based Electrocatalysis
Applied Polyoxometalate-Based Electrocatalysis

Author: Diana M. Fernandes

Publisher: John Wiley & Sons

Published: 2025-01-13

Total Pages: 386

ISBN-13: 3527352139

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Well-researched reference on stable alternative electrocatalysts and electrode materials with the potential to transform chemistry and processes in sensor and energy related technologies Applied Polyoxometalate-Based Electrocatalysis delivers an overview of the variety of efficient applications of free POM and POM-based (nano)composites as exciting materials in the field of electrocatalysis. With a variety of sizes, shapes, composition, and physical and chemical properties, these composites have important properties, such as the ability to undergo reversible multivalence reductions/oxidations, leading to the formation of mixed-valence species, which brings about favorable electrocatalytic properties with regard to several electrochemical processes. Written by a highly qualified independent researcher internationally recognized for her contributions to materials for electrochemical energy-related reactions, Applied Polyoxometalate-Based Electrocatalysis includes information on: General methodologies used in the preparation of free POMs and POM-based nanocomposites and different strategies employed in electrode modification Role of POM-modified electrodes in oxidative and reductive electrocatalysis, including the detection/sensing of several (bio)molecules of interest and carbon dioxide electroreduction Application of POM-based (nano)composites, including the oxygen reduction reaction relevant to fuel cells, the oxygen and hydrogen evolution reactions, and batteries and supercapacitors Applied Polyoxometalate-Based Electrocatalysis is an essential reference on the subject for chemists, material scientists, chemical engineers, and institutions involved in work related to free POM and POM-based (nano)composites.

Polyoxometalate-Based Hybrids and their Applications
Polyoxometalate-Based Hybrids and their Applications

Author: Majid M. Heravi

Publisher: Elsevier

Published: 2023-03-14

Total Pages: 462

ISBN-13: 0323983464

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Polyoxometalate-Based Hybrids and their Applications focuses on recent progress in polyoxometalate-based hybrids materials. Chapters present the structure, composition, classification and properties of POMs such as isopolyaions, heteropolyanions, giant and lacunary polyoxometalates and then cover polyoxometalate-based open-frameworks (POM-OFs), include a historical introduction to these compounds, and present their synthetic strategies. The structural diversity and relative applications of POM-OFs is also covered. Other sections delve into synthetic strategies, structural diversity and relative applications of porous polyoxometalate-based metal-organic frameworks. Polyoxometalate-based coordination polymers (POMCPs) and polyoxometalate-based host-guest framework materials are highlighted in final sections. This book is an essential reference for inorganic chemists, biochemists, and material scientists working in academia and industry. - Discusses polyoxometalate-based host-guest framework materials - Includes coverage of polyoxometalates and their environmental applications - Reviews transition metal substituted lacunary polyoxometalates

Polyoxometalate Chemistry From Topology via Self-Assembly to Applications
Polyoxometalate Chemistry From Topology via Self-Assembly to Applications

Author: M.T. Pope

Publisher: Springer Science & Business Media

Published: 2001-06-30

Total Pages: 421

ISBN-13: 0792370112

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Polyoxometalates constitute an extensive class of compounds with an unmatched range of structures, properties and applications. This is an authoritative, up-to-date summary of the chemistry and applications of polyoxometalates.

Polyoxometalate-Based Assemblies and Functional Materials
Polyoxometalate-Based Assemblies and Functional Materials

Author: Yu-Fei Song

Publisher: Springer

Published: 2018-03-24

Total Pages: 168

ISBN-13: 3319759043

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The authors of this volume concentrate on the recent progress of novel polyoxometalate (POM) syntheses, as well as advances made in catalytic, electrochemical, and sensing systems. The state-of-the-art techniques such as flow system and gel-electrophoresis for the discovery of POMs are covered with a detailed discussion. Of particular importance, the application of POM-based materials in photo-sensing, heterogeneous catalysis, energy conservation and storage, and gas separation is reviewed. Over the past few years, POM chemistry has witnessed a remarkable progress with more than 1500 papers published each year. Due to their intrinsic structural features, POMs are considered as versatile building blocks for the construction of sophisticated complex assemblies and advanced multi-functional materials. Various strategies, methods, and techniques have been adopted to develop POM-based materials with intriguing properties and excellent performance. All the contributors to this volume are young, vibrant chemists in this research field and all the works are carefully collected from the authors’ years of experience. This volume serves as an essential reference for every POM chemist and is of great interest to new researchers who wish to learn more about this area.

Polyoxometalate Chemistry: Some Recent Trends
Polyoxometalate Chemistry: Some Recent Trends

Author: Francis Secheresse

Publisher: World Scientific

Published: 2013-06-11

Total Pages: 360

ISBN-13: 9814458996

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The book highlights recent prominent results in the domain of the synthesis of new polyoxometalates with a specific attention to polyoxothioanions, and provides some novelties and perspectives in selected domains such as magnetism, luminescence and nanochemistry, and macroions self-assembly in solutions. The case of “one-pot” syntheses often used and reported in POMs synthesis is studied in terms of more complex solution speciation processes related to highly dynamical situation connected to factors such as pH, ionic strength, reaction time, temperature, counterion nature, concentration of starting materials, presence of electron donors and redox potentials. The behavior of macroions (2nm-6nm size range) in solution is shown to be quite different from the simple ionic solution or colloidal systems (Debye-Huckel model). Their self-assembling into a single-layered, spherical, hollow vesicle structure, namely the “blackberry” structure, is clearly described. Examples of spin clusters with tunable interactions are given and single molecule magnets based on POMs are specifically tackled. Besides paramagnetic transition metal centres and lanthanoid ions encapsulated in archetypal lacunary polyoxoanions, magnetically functionalized Kleperates are described, their discovery tracing back nearly 15 years.

Polyoxometalate Chemistry for Nano-Composite Design
Polyoxometalate Chemistry for Nano-Composite Design

Author: Toshihiro Yamase

Publisher: Springer Science & Business Media

Published: 2006-04-28

Total Pages: 232

ISBN-13: 0306479338

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"Chemists from several international polyoxometalate research groups discussed recent results, including: controlled self-organization processes for the preparation of nano-composites; electronic interactions in magnetic mixed-valence cryptands and coronands; synthesis of the novel polyoxometalates with topological or biological significance; systematic investigations in acid-base and/or redox catalysis for organic transformations; and electronic properties in materials science."--Page v

New Synthetic Routes to Polyoxometalate Containing Ionic Liquids
New Synthetic Routes to Polyoxometalate Containing Ionic Liquids

Author: Sven Herrmann

Publisher: Springer

Published: 2015-02-11

Total Pages: 138

ISBN-13: 365808796X

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In his Master project Sven Herrmann for the first time carried out fundamental investigations into the development of polyoxometalate based ionic liquids (POM-ILs). The POM-ILs were obtained by charge balancing inorganic polyoxometalate (POM) anions with sterically demanding tetraalkylammonium or tetraalkylphosphonium cations. By functionalization of lacunary Keggin clusters with 3d-transition metals and charge balancing with tetraalkylammonium cations of differing chain length, a model system for the correlation of the molecular structure with macroscopic materials properties was obtained. In a systematic approach the syntheses via self-aggregation is presented. Analytic methods comprise UV-Vis, FTIR, NMR, EPR and Mößbauer spectroscopy. For determination of the materials properties TGA and DSC were carried out and rheological studies shed light onto the flow characteristics of the highly viscous materials.