Download or read book Octahedral Metal Clusters as Molecular Building Blocks of Coordination Polymers written by Lei Chen and published by . This book was released on 2011 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation work focuses on the use of cyanide-functionalized paramagnetic cluster [(Ta6Cl12[superscript i])(CN)12[superscript a]]3− with valence electron per cluster (VEC) = 15 as molecular building blocks of coordination polymers. Apical cyanide ligands are used as bridging ligands between the cluster and other molecular building blocks for the preparation of supramolecular assemblies with different dimensions. Using the self-assembly approach, eight new compounds were synthesized and their crystal structures have been determined from sing crystal X-ray diffraction. Two salts [La(DMF)(MeOH)[subscript 1.5](H2O)[subscript 0.5]Ta6Cl12(CN)6]·DMF (1) and Sm(H2O)2(DMF)Ta6Cl12(CN)6 (2) were synthesized using the anion [Ta6Cl12(CN)6]3− and solutions of La3+ and Sm3+. Both 1 and 2 precipitated quickly due to extremely low solubility of the products in the solvent system used, thus the products lacked crystallinity. The introduction of bridging ligand 4,4'-dipyridyl N,N'-dioxide (dpdo) enabled the formation of three extended frameworks [Eu(dpdo)(H2O)5(EtOH)2] [Ta6Cl12(CN)6]·dpdo·H2O· 4MeOH (3), [Eu(dpdo)3(H2O)4][Ta6Cl12(CN)6] ·5H2O (4) and [Eu(dpdo)2(H2O)3 Ta6Cl12(CN)6] ·2H2O ·0.75EtOH (5), by using the same starting materials but different stoichiometry and solvents. The compound [Zn2[Ta6Cl12(CN)6OH] · xH2O containing the Zn2 dimers was synthesized and structurally characterized, but it was difficult to prepare the compound quantitatively for further physical characterization. Two other novel compounds Zn3[Ta6Cl12(CN)4 X2]2 (7) and [Ni(en)2]2[Nb6Cl12(CN)6] · 2.5MeOH (8) were synthesized and their host-guest molecular interaction were studied. These results illustrate the approach of direct self-assembly is an effective way to prepare metal clusters based coordination polymers with novel structures and properties.
Download or read book Coordination Polymers written by Stuart R Batten and published by Royal Society of Chemistry. This book was released on 2008-11-06 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of coordination polymer research has undergone rapid expansion in recent years. No longer are these materials the vaguely defined 'insoluble material' at the bottom of your vessel that spell death for your reaction. They have gone from 'polymeric rubbish' to 'materials of the future'. Great leaps in the deliberate design of coordination polymers were made in the 1990s. These were allied with similar advances in related areas such as organic crystal engineering, metallosupramolecular chemistry and X-ray diffraction. No longer did we assemble things atom by atom. Whole molecules were used as building blocks and new materials were made. This is the first book to provide a broad overview of all the major facets of coordination polymer research in one place. It combines chapters on nets and interpenetration with wide-ranging surveys of transition metal and lanthanoid coordination polymers and their properties. The aim is to provide a flavour of each aspect whilst introducing the important concepts and developments using carefully selected examples. After an introduction, the text is split into three sections: -Design (nets, interpenetration, malleability) -Analysis (transition metal coordination polymers, lanthanoid coordination polymers, organometallic networks, organic-inorganic hybrids) -Application (magnetic properties, porosity, acentric and chiral networks, reactive coordination polymers, other properties). Written in the style of a tutorial review, the book is suitable for both senior specialists and new postgraduate students taking their first steps in the field. It also provides an authoritative and detailed reference source.
Download or read book Ligated Transition Metal Clusters in Solid state Chemistry written by Jean-François Halet and published by Springer Nature. This book was released on 2019-08-29 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume dedicated to the memory of Marcel Sergent who was a leader in this field for many years, addresses past achievements and recent developments in this vibrant area of research. Large classes of ligated transition metal clusters are produced either exclusively or most reliably by means of high-temperature solid-state reactions. Among them, the Chevrel-Sergent phases and related materials have generated enormous interest since their discovery in 1971. Today, these materials and their numerous derivatives still constitute a vivid area of research finding some applications not only in superconductivity, but also in catalysis, optics or thermoelectricity to mention a few.
Download or read book Main Group Metal Coordination Polymers written by Ali Morsali and published by John Wiley & Sons. This book was released on 2017-02-21 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coordination polymer is a general term used to indicate an infinite array composed of metal ions which are bridged by certain ligands among them. This incorporates a wide range of architectures including simple one-dimensional chains with small ligands to large mesoporous frameworks. Generally, the formation process proceeds automatically and, therefore, is called a self-assembly process. In general, the type and topology of the product generated from the self-assembly of inorganic metal nodes and organic spacers depend on the functionality of the ligand and valences and the geometric needs of the metal ions used. In this book the authors explain main group metal coordination polymer in bulk and nano size with some of their application, synthesis method and etc, The properties of these efficient materials are described at length including magnetism (long-range ordering, spin crossover), porosity (gas storage, ion and guest exchange), non-linear optical activity, chiral networks, reactive networks, heterogeneous catalysis, luminescence, multifunctional materials and other properties.
Download or read book Nano size Molecular Assemblies and Extended Frameworks written by Sergio Aaró́n Gamboa Martínez and published by . This book was released on 2008 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atomically Precise Metal Clusters written by Shuang-Quan Zang and published by John Wiley & Sons. This book was released on 2024-07-29 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Applications of Porous Coordination Polymers and Metal Organic Frameworks MOFs written by Hemanta Kalita and published by GRIN Verlag. This book was released on 2022-08-09 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Document from the year 2022 in the subject Chemistry - Macromolecular Chemistry, Polymer Chemistry, grade: 17, Gauhati University, language: English, abstract: Porous coordination polymers, also known as metal organic frameworks are a new type of hybrid material constructed via self-assembly of metal ions/metal clusters which function as nodes and organic ligands which act as bridges or linkers. They are one of the earliest developed classes of metal containing polymers. They extend infinitely one, two or three dimensional framework through coordination bonding, hydrogen bonding, π–π stacking, C-H-π interactions as well as van der Waal forces. These weaker non-covalent interactions, are important for the packing of the one dimensional chains, two-dimensional nets and three-dimensional frameworks. In view of the tunable structures and promising properties shown by these systems various complexities have been prepared and thoroughly investigated over last decade. MOFs are currently flourishing fields of research owing to their intriguing structural motifs and various potential applications, in the field of gas storage, gas separation, catalysis, ion exchange, microelectronics, non linear optics, sensors, medicine and molecular magnetism etc. They possess structural regularity, high porosity, high surface area resulting in greater potential applications than conventional zeolites or activated carbons and mesoporous silica. For the construction of porous coordination polymers with diverse structures and properties selection of the special inorganic and organic building blocks is one of the important factors. Multicarboxylate organic ligands have proved to be an excellent choice for the construction of MOFs of higher nuclearity due to their different coordination modes with the metals, molecular flexibilities and structural stabilities. Metal carboxylate linker in combination with cross linked or pillered polypyridine have generated many interesting coordination architecture. Making use of transition metal carboxylate and linear bridging auxiliary ligands it is possible to construct 1-D, 2-D and 3-D porous coordination polymer of different pore structures and porosities. Aside from coordination bonding interactions, various non-covalent bonding or some weak intra- or intermolecular interactions, such as hydrogen-bonding, π–π stacking and C–H–π interactions or van der Waals interactions also influence the formation of final architectures.
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.
Download or read book Design and Construction of Coordination Polymers written by Mao-Chun Hong and published by Wiley-Interscience. This book was released on 2009-05-27 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design and Construction of Coordination Polymers Edited by Mao-Chun Hong Ling Chen A Unique Resource on coordination Polymers Coordination polymers are a growing, interdisciplinary field with numerous potential applications in chemistry and materials. Design and Construction of Coordination Polymers provides a comprehensive introduction to this field, focusing on synthetic strategies, structures, properties, and potential applications. Each chapter provides a unique perspective on coordination polymers, offering a dedicated approach as well as deeper insights on the most important facets of this interdisciplinary area. Combining the consistent editorial approach of a textbook with the up-to-date data and topics usually found in the latest monographs and handbooks, Design and Construction of Coordination Polymers offers an unparalleled reference to the state of the art. Among other topics, it covers: Coordination polymers with versatile structures Crystal engineering of coordination polymers Organic/inorganic hybrid complexes based on polyoxometalates Molecular-based magnetic and ferroelectric compounds Heavy main-group iodometalates Gas storage MOFs Bioinorganic coordination complexes Addressing a wide range of readers, Design and Construction of Coordination Polymers will prove an invaluable resource to everyone from senior-level undergraduate and graduate students to working scientists.
Download or read book Structural Design and Properties of Coordination Polymers written by George E. Kostakis and published by MDPI. This book was released on 2018-04-27 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Structural Design and Properties of Coordination Polymers" that was published in Crystals
Download or read book Metal Organic Frameworks written by Leonard R. MacGillivray and published by John Wiley & Sons. This book was released on 2010-12-17 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal-organic frameworks represent a new class of materials that may solve the hydrogen storage problem associated with hydrogen-fueled vehicles. In this first definitive guide to metal-organic framework chemistry, author L. MacGillivray addresses state-of-art developments in this promising technology for alternative fuels. Providing professors, graduate and undergraduate students, structural chemists, physical chemists, and chemical engineers with a historical perspective, as well as the most up-to-date developments by leading experts, Metal-Organic Frameworks examines structure, symmetry, supramolecular chemistry, surface engineering, metal-organometallic frameworks, properties, and reactions.
Download or read book Design and Construction of Coordination Polymers written by Mao-Chun Hong and published by John Wiley & Sons. This book was released on 2009-05-27 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design and Construction of Coordination Polymers Edited by Mao-Chun Hong Ling Chen A Unique Resource on coordination Polymers Coordination polymers are a growing, interdisciplinary field with numerous potential applications in chemistry and materials. Design and Construction of Coordination Polymers provides a comprehensive introduction to this field, focusing on synthetic strategies, structures, properties, and potential applications. Each chapter provides a unique perspective on coordination polymers, offering a dedicated approach as well as deeper insights on the most important facets of this interdisciplinary area. Combining the consistent editorial approach of a textbook with the up-to-date data and topics usually found in the latest monographs and handbooks, Design and Construction of Coordination Polymers offers an unparalleled reference to the state of the art. Among other topics, it covers: Coordination polymers with versatile structures Crystal engineering of coordination polymers Organic/inorganic hybrid complexes based on polyoxometalates Molecular-based magnetic and ferroelectric compounds Heavy main-group iodometalates Gas storage MOFs Bioinorganic coordination complexes Addressing a wide range of readers, Design and Construction of Coordination Polymers will prove an invaluable resource to everyone from senior-level undergraduate and graduate students to working scientists.
Download or read book Macromolecules Containing Metal and Metal Like Elements Volume 7 written by Alaa S. Abd-El-Aziz and published by John Wiley & Sons. This book was released on 2005-11-18 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series provides a useful, applications-oriented forum for the next generation of macromolecules and materials. This volume, seventh in the series, covers nanoscale interactions of metal-containing polymers. Example chapters include: * Nanoscale Clusters and Molecular Orbital Interactions in Macromolecular-Metal Complexes * Metal Oxide Clusters as Building Blocks for Inorganic-Organic Hybrid Polymers
Download or read book Rings Clusters and Polymers of Main Group and Transition Elements written by H. W. Roesky and published by Elsevier Publishing Company. This book was released on 1989 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chemistry of rings, clusters and polymers is becoming an important branch of inorganic and organometallic chemistry. Although inorganic rings have been known for more than 150 years, they have only been structurally characterized within the last fifty years. Inorganic and organometallic clusters and polymers have recently become the subject of intense interest and study because of their unusual properties and their potential for applications in the areas of catalysis, electronics and ceramics. Transition metal clusters have been examined as models for heterogeneous catalysts. Both rings and clusters might function as potential building blocks for extended solid state systems. In comparison with organic polymers, however, general and versatile methods for the synthesis of inorganic and organometallic polymers are not readily available. In particular, the preparation of polymers containing transition metal atoms in the polymer backbone is a challenge to inorganic chemistry. This book describes the rapid development which has taken place in this field.
Download or read book From Molecular Building Blocks to Solid Polymers written by Renata Lea Hoskins and published by . This book was released on 1989 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cluster Chemistry written by Guillermo Gonzalez-Moraga and published by Springer Science & Business Media. This book was released on 2013-11-09 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cluster chemistry is one of the recent, exciting areas of Inorganic Chemistry. The occurence of molecular clusters, like fullerene C60, constitutes a fundamental feature midway between the chemistry of isolated chemical compounds and that of the elements. Main features of the Cluster Chemistry of both main group and transition metal elements are treated in this book. The author highlights aspects releated to the synthesis, the structure, the special bonding and the reactivity of these species. The book is written as a textbook for senior undergraduate and postgraduate students. References in tables andillustrations permit the reader to reach relevant original information. Professor Gonzalez-Moraga fills a demand for a publication appropriate for dissemination and specially for teaching this exciting subject. From the Contents: Current Concepts in Modern Chemistry - Transition Metal Cluster Chemistry - Main Group-Transition Metal Mixed Clusters - Cluster Compounds of the Main Group Elements - Synthetic Analogues of the Active Sites of Iron-Sulfur Proteins.
Download or read book Structural Diversity in Metal organic Materials written by Gregory J. McManus and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: The interest in metal-organic materials namely, coordination polymers and metal-organic frameworks has risen dramatically over the past few years. To a certain extent this interest is a consequence of the realization chemists have discovered how to play a form of molecular Lego® in which metal cations or metal clusters represent the bricks (or nodes) and organic ligands such as 4,4-bipyridine (bipy) or benzene-dicarboxylate represents the glue (or spacers). The "node-and-spacer" approach to self-assembly can be invoked in such a manner that a plethora of infinite architectures and discrete polyhedra can be generated from geometric principles, some of which are unprecedented in either natural or synthetic materials. The research presented within this dissertation primarily involves the use of coordination chemistry and supramolecular chemistry in the context of synthesizing metal-organic materials and deals with how subtle variations in reactants and procedures can have dramatic effects upon the materials formed. The effect of aromatic guest molecules on the crystal packing of 1D and 2D "metal-4,4`-bipyridine" coordination polymers has been addressed in terms of structural analysis and fluorescence spectroscopy. The phenomena of supramolecular isomerism resulting from the use of metal-carboxylate clusters as building blocks for a variety of metal-organic materials will be discussed. Finally, an analysis of the Host:Guest and suprasupermolecular properties of discrete nanostructures will be provided.
