Novel Multifunctional Porous Coordination Polymers From Pre Synthetically Modified Organophosphorus Ligands
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Novel Multifunctional Porous Coordination Polymers From Pre Synthetically Modified Organophosphorus Ligands
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Author : Alisha Marie Bohnsack
language : en
Publisher:
Release Date : 2015
Novel Multifunctional Porous Coordination Polymers From Pre Synthetically Modified Organophosphorus Ligands written by Alisha Marie Bohnsack and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Phosphine-based Porous Coordination Polymers (PCPs) have shown promising results as gas storage, gas separations, and molecular sensing materials due the versatility of the P(III)/P(V) chemistry, coupled with the inherent 3-dimensionality of the ligands. A variety of pre-synthetically modified organophosphine linkers have been reacted with alkali earth metals, early transition metals, and lanthanides to produce a series of Phosphine Coordination Materials (PCMs) with a wide array of topologies and pore functionalities. A p-carboxylated triphenylphosphine oxide linker, tctpoH3, has been reacted with Mg(II) to form the thermally robust PCM-11, which possesses superior room-temperature CO2 adsorption capacity at 12 bar. A new tetrahedral phosphonium salt, tctp+H3, has been synthesized by the Pd(II)-catalyzed reaction of p-carboxylated triphenylphosphine with 4-iodobenzoic acid to produce a zwitterionic monophosphine precursor. Upon examination of its crystal structure, it was found that tctp+H3 possesses a high degree of hydrogen-bonding between neighboring carboxylic acid groups, which causes it to polymerize into a porous, metal-free, ionically-bonded coordination polymer, iPCM-1. This phosphonium linker has been reacted with a series of Ln(III) precursors to form an isostructural set of PCMs that exhibit characteristic lanthanide luminescence properties. Several PCPs have been developed from a new bis(phosphine)MCl2 (M = Pd, Pt) complex upon reaction with early transition metals. Zn(II)-based PCM-18 exhibits unusual and fully reversible H2 adsorption at 150 °C, as well as post-synthetic reactivity inside the pores of the material. Co(II)-based PCM-24 also displays similar high-temperature H2 sorption behavior, along with a reversible pink to blue color change upon activation, indicative of a symmetry transformation from O [subscript h] to T [subscript d] about the metal node.
Synthesis And Post Synthetic Modifications Of Novel Carboxylated Triphenylphosphine Based Coordination Polymers
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Author : Ana Julia Nuñez
language : en
Publisher:
Release Date : 2014
Synthesis And Post Synthetic Modifications Of Novel Carboxylated Triphenylphosphine Based Coordination Polymers written by Ana Julia Nuñez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
Over the last few decades, Porous Coordination Polymers (PCPs, a.k.a. MOFs) have been extensively studied for a number of applications due to their functional and structural versatility. Nonetheless, systematic studies that explore the structure-function relationship of frameworks decorated with different functional groups remain limited. In the present work, two families of coordination polymers that contain organophosphine building blocks have been synthesized and characterized. These materials contain a periodic array of P(III) Lewis base sites that are available for post-synthetic functionalization. PCM-10 is a porous coordination polymer based on Ca(II) and tris(p-carboxylated) triphenylphosphine. The material displayed a 3-dimensional surface, ideal for a series of post-synthetic modifications. The versatility of P(III)→P(V) chemistry allowed for decoration of the R3P: sites of PCM-10 with different functional groups. Solid-state treatment of the framework with a variety of precursors, gave rise to a family of isostructural materials (ClAu-PCM-10, O=PCM-10 and (Me-PCM-10)X; X = I−, F−, BF4− and PF6−). These post-synthetic modifications directly affected the host-guest interactions, as demonstrated by comparative adsorption studied of CO2, H2 and other small molecules. For example, the phosphonium (Me-PCM-10)X composites displayed broad tunability of isosteric heats of CO2 adsorption, depending on the counter-ion. Similarly, the ClAu-PCM-10 derivative resulted in selective adsorption of 1-hexene vs. n-hexane and displayed significantly increased H2 uptake capacity, when compared to PCM-10. Ln-PCM-22 is a family of isostructural PCPs based on tris(p-carboxylated) triphenylphosphine and Ln(III) (Ln = Sm-Yb). Photoluminescence studies of Eu-PCM-22 and Tb-PCM-22 were used to elucidate certain aspects of the solid-state emissive properties of phosphine-based materials. In addition, a single-crystal-to-single-crystal post-synthetic oxidation of Tb-PCM-22 was achieved to yield the composite material Tb-O=PCM-22. This modification resulted in enhancement of the quantum efficiency, compared to that of the parent framework. These results will help further the understanding of PCMs and direct the upcoming synthesis and application of these materials.
Mixed Matrix Membranes
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Author : Clara Casado-Coterillo
language : en
Publisher: MDPI
Release Date : 2019-12-16
Mixed Matrix Membranes written by Clara Casado-Coterillo and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-12-16 with Technology & Engineering categories.
Mixed matrix membranes (MMMs) have attracted a large amount of interest in research laboratories worldwide in recent decades, motivated by the gap between a growing interest in developing novel mixed matrix membranes by various research groups and the lack of large-scale implementation. This Special Issue contains six publications dealing with the current opportunities and challenges of mixed matrix membranes development and applications to solve environmental and health challenges of the society of 21st century.
Flame Retardant Polymer Nanocomposites
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Author : Alexander B. Morgan
language : en
Publisher: John Wiley & Sons
Release Date : 2007-04-06
Flame Retardant Polymer Nanocomposites written by Alexander B. Morgan and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-04-06 with Technology & Engineering categories.
Flame Retardant Polymer Nanocomposites takes a comprehensive look at polymer nanocomposites for flame retardancy applications and includes nanocomposite fundamentals (theory, design, synthesis, characterization) as well as polymer flammability fundamentals with emphasis on how nanocomposites affect flammability. The book has practical examples from literature, patents, and existing commercial products. Readers can design new work based upon the material in the book or use it as a handy reference for interpreting existing work and results.
Catalyst Separation Recovery And Recycling
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Author : David J. Cole-Hamilton
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-01-13
Catalyst Separation Recovery And Recycling written by David J. Cole-Hamilton and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-01-13 with Science categories.
This book looks at new ways of tackling the problem of separating reaction products from homogeneous catalytic solutions. The new processes involve low leaching supported catalysts, soluble supports such as polymers and dendrimers and unusual solvents such as water, fluorinated organics, ionic liquids and supercritical fluids. The advantages of the different possibilities are discussed alongside suggestions for further research that will be required for commercialisation. Unlike other books, in addition to the chemistry involved, the book looks at the process design that would be required to bring the new approaches to fruition. Comparisons are given with existing processes that have already been successfully applied and examples are given where these approaches are not suitable. The book includes: - New processes for the separation of products from solutions containing homogeneous catalysts - Catalysts on insoluble or soluble supports – fixed bed catalysts - continuous flow or ultrafiltration - Biphasic systems: water - organic, fluorous - organic, ionic liquid – organic, supercritical fluids (monophasic or biphasic with water, organic or ionic liquid) - Comparisons with current processes involving atmospheric or low temperature distillation - Consideration of Chemistry and Process Design - Advantages and disadvantages of each process exposed - Consideration of what else is need for commercialisation
Elementary Philosophy
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Author : James M. Willcox
language : en
Publisher: BoD – Books on Demand
Release Date : 2023-11-20
Elementary Philosophy written by James M. Willcox and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-11-20 with Fiction categories.
Reprint of the original, first published in 1875.
Chemistry Of Polymeric Metal Chelates
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Author : Gulzhian I. Dzhardimalieva
language : en
Publisher: Springer
Release Date : 2018-02-13
Chemistry Of Polymeric Metal Chelates written by Gulzhian I. Dzhardimalieva and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-02-13 with Technology & Engineering categories.
This book deals with the chemistry of polymeric metal chelates. The main results and the production and chemical structure of polymers with chelate units as well as the specificity of metal complex binding of different structure are presented here. This book also reveals the transformations which components undergo in the course of chelation. Special attention is paid not only to synthetic but also to natural (including living) systems. The usage of polymeric metal chelates and their development are examined. The related research was performed for chelates with chain structure. This book is useful to researchers being active in synthesis and design of macromolecular metal chelates
The Privileged Pincer Metal Platform Coordination Chemistry Applications
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Author : Gerard van Koten
language : en
Publisher: Springer
Release Date : 2015-08-27
The Privileged Pincer Metal Platform Coordination Chemistry Applications written by Gerard van Koten and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-08-27 with Science categories.
The series Topics in Organometallic Chemistry presents critical overviews of research results in organometallic chemistry. As our understanding of organometallic structure, properties and mechanisms increases, new ways are opened for the design of organometallic compounds and reactions tailored to the needs of such diverse areas as organic synthesis, medical research, biology and materials science. Thus the scope of coverage includes a broad range of topics in pure and applied organometallic chemistry, where new breakthroughs are being achieved that are of significance to a larger scientific audience. The individual volumes of Topics in Organometallic Chemistry are thematic. Review articles are generally invited by the volume editors.
Metal Organic Frameworks Mofs For Environmental Applications
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Author : Sujit K. Ghosh
language : en
Publisher: Elsevier
Release Date : 2019-06-07
Metal Organic Frameworks Mofs For Environmental Applications written by Sujit K. Ghosh and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-06-07 with Science categories.
Metal-Organic Frameworks for Environmental Applications examines this important topic, looking at potential materials and methods for the remediation of pressing pollution issues, such as heavy-metal contaminants in water streams, radioactive waste disposal, marine oil-spillage, the treatment of textile and dye industry effluents, the clean-up of trace amounts of explosives in land and water, and many other topics. This survey of the cutting-edge research and technology of MOFs is an invaluable resource for researchers working in inorganic chemistry and materials science, but it is also ideal for graduate students studying MOFs and their applications. Examines the applications of metal-organic frameworks for the remediation of environmental pollutants Features leading experts who research the applications of MOFs from around the world, including contributions from the United States, India and China Explores possible solutions to some of today’s most pressing environmental challenges, such as heavy-metal contamination in bodies of water, oil spills and clean-up of explosives hidden in land and water Provides an excellent reference for researchers and graduate students studying in the areas of inorganic chemistry, materials chemistry and environmental science
Inorganic Nanoparticles
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Author : Claudia Altavilla
language : en
Publisher: CRC Press
Release Date : 2017-12-19
Inorganic Nanoparticles written by Claudia Altavilla and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-19 with Technology & Engineering categories.
Among the various nanomaterials, inorganic nanoparticles are extremely important in modern technologies. They can be easily and cheaply synthesized and mass produced, and for this reason, they can also be more readily integrated into applications. Inorganic Nanoparticles: Synthesis, Applications, and Perspectives presents an overview of these special materials and explores the myriad ways in which they are used. It addresses a wide range of topics, including: Application of nanoparticles in magnetic storage media Use of metal and oxide nanoparticles to improve performance of oxide thin films as conducting media in commercial gas and vapor sensors Advances in semiconductors for light-emitting devices and other areas related to the energy sector, such as solar energy and energy storage devices (fuel cells, rechargeable batteries, etc.) The expanding role of nanosized particles in the field of catalysis, art conservation, and biomedicine The book’s contributors address the growing global interest in the application of inorganic nanoparticles in various technological sectors. Discussing advances in materials, device fabrication, and large-scale production—all of which are urgently required to reduce global energy demands—they cover innovations in areas such as solid-state lighting, detailing how it still offers higher efficiency but higher costs, compared to conventional lighting. They also address the impact of nanotechnology in the biomedical field, focusing on topics such as quantum dots for bioimaging, nanoparticle-based cancer therapy, drug delivery, antibacterial agents, and more. Fills the informational gap on the wide range of applications for inorganic nanoparticles in areas including biomedicine, electronics, storage media, conservation of cultural heritage, optics, textiles, and cosmetics Assembling work from an array of experts at the top of their respective fields, this book delivers a useful analysis of the vast scope of existing and potential applications for inorganic nanoparticles. Versatile as either a professional research resource or textbook, this effective tool elucidates fundamentals and current advances associated with design, characterization, and application development of this promising and ever-evolving device.