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The Synthesis Structures Reactivity And Polymerization Behavior Of Boron And Sulfur Nitrogen Phosphorus Heterocycles And Highly Strained Chalcogen And Boron Bridged 1ferrocenophanes
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Author :Derek Patrick Gates Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 :9780612458246 Total Pages :442 pages Book Rating :4.4/5 (582 download)
Book Synopsis The Synthesis, Structures, Reactivity and Polymerization Behavior of Boron- and Sulfur-nitrogen-phosphorus Heterocycles and Highly Strained Chalcogen- and Boron-bridged (1)ferrocenophanes [microform] by : Derek Patrick Gates
Download or read book The Synthesis, Structures, Reactivity and Polymerization Behavior of Boron- and Sulfur-nitrogen-phosphorus Heterocycles and Highly Strained Chalcogen- and Boron-bridged (1)ferrocenophanes [microform] written by Derek Patrick Gates and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1997 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Synthesis, Structures, Reactivity and Polymerization Behavior of Boron- and Sulfur-nitrogen-phosphorus Heterocycles and Highly Strained Chalcogen- and Boron-bridged (1)ferrocenophanes by :
Download or read book The Synthesis, Structures, Reactivity and Polymerization Behavior of Boron- and Sulfur-nitrogen-phosphorus Heterocycles and Highly Strained Chalcogen- and Boron-bridged (1)ferrocenophanes written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Synthesis, Structures, Reactivity and Polymerization Behavior of Boron- and Sulfur-nitrogen-phosphorus Heterocycles and Highly Strained Chalcogen- and Boron-bridged (1)ferrocenophanes by : Derek Patrick Gates
Download or read book The Synthesis, Structures, Reactivity and Polymerization Behavior of Boron- and Sulfur-nitrogen-phosphorus Heterocycles and Highly Strained Chalcogen- and Boron-bridged (1)ferrocenophanes written by Derek Patrick Gates and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The investigation of the chemistry of the boratophosphazene N(PCl 2NMe)2BCl2 led to the first examples of borazine-phosphazene hybrid cations [N(PCl2NMe)2BCl]+, which possess planar rings, and are formally hybrids of two textbook classes of inorganic heterocycles. The skeletal replacement of a boron atom in an inorganic ring with a heteroelement has been discovered from the treatment of N(PCl 2NMe)2BCl2 with Ag[AsF6] or Ag[SbF 6]. This provides a novel approach to the synthesis of heterocycles containing As(V) and Sb(V) which are difficult to prepare via conventional routes. The thionylphosphazene cation [NSO(NPCl2)2] +, was synthesized as a highly reactive intermediate, which cleaves diethyl ether to yield the sulfur-ethoxy substituted species, NSO(OCH 2CH3)(NPCl2)2, and reacts with 1,2-dichloroethane to yield NSO(CH2CHCl2)(NPCl2)2. Treatment of NSOCl(NPCl2)2 with SbCl5 produces macrocycles, [NSOCl(NPCl2)2]n (n = 2-6); whereas the similar reaction with GaCl3 provides a new, convenient, ambient temperature route to poly(thionylphosphazene) [NSOCl(NPCl2) 2]n. These transformations presumably occur 'via' a cationic mechanism. The reactions of cyclic thionylphosphazenes NSOX(NPCl2) 2 (X = Cl or F) with three oxygen-based nucleophiles [NaOPh, NaOCH 2CF3 and NaOBu] were found to proceed regioselectively; first at phosphorus and secondly at sulfur. The substitution of the rings has been extended to the synthesis of new mixed substituent poly[(alkoxy/amino)thionylphosphazenes] which are useful in pressure sensing composite materials. The first examples of highly strained sulfur-, selenium- and boron-bridged [1]ferrocenophanes have been synthesized and the ring-tilts (>31°) are the largest for any known [1]ferrocenophane. Extended Hûckel MO calculations were performed and predicted a decrease in the HOMO-LUMO gap as the ring tilt increases from ferrocene to Fe([eta]-C5H4)2S. Thermal and anionic ROP of Fe([eta]-C5H3Me)2S yields the first soluble poly(ferrocenylsulfide).
Book Synopsis New Aspects in Phosphorus Chemistry I by : Jean-Pierre Majoral
Download or read book New Aspects in Phosphorus Chemistry I written by Jean-Pierre Majoral and published by Springer Science & Business Media. This book was released on 2002-03-05 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Undoubtedly the chemistry of phosphorus appears more and more attractive in the sense that phosphorus presents an extraordinary versatile behaviour that allows the synthesis of a large number of different phosphorus reagents usable for applications in different fields, from biology to material science without f- getting key applications in catalysis. The full maturity of this topic of research can be explained by all the acquired knowledge over these twenty last years. Organic and inorganic chemistries of P, P and P species have been the s- in]V v ject of thousands of publications while the chemistry of low coordinated ph- phorus derivatives experienced its hour of glory from the 1970s to the early 1990s. In parallel, interactions between phosphorus compounds and transition metals afforded many complexes, a lot of which present fascinating properties as catalysts. The interest in all these themes really is not decreasing, indeed some fas- nating areas of research are emerging or are the subject of many investigations: the medicinal chemistry of bisphosphonates, the role of phosphorus in biology, phosphorus ligands in radiopharmaceutical chemistry, phosphorus in material science, new polymers and dendrimers incorporating phosphorus, and as- metric catalysis to name but a few. Indeed researchers, benefitting from their background in basic phosphorus chemistry are developing many new fields of research.
Book Synopsis The Synthesis, Novel Reactivity and Polymerization Behavior of Boron- and Sulfur-nitrogen-phosphorus Heterocycles by : Andrew Robert McWilliams
Download or read book The Synthesis, Novel Reactivity and Polymerization Behavior of Boron- and Sulfur-nitrogen-phosphorus Heterocycles written by Andrew Robert McWilliams and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to Structural Chemistry by : Stepan S. Batsanov
Download or read book Introduction to Structural Chemistry written by Stepan S. Batsanov and published by Springer Science & Business Media. This book was released on 2012-11-29 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: A concise description of models and quantitative parameters in structural chemistry and their interrelations, with 280 tables and >3000 references giving the most up-to-date experimental data on energy characteristics of atoms, molecules and crystals (ionisation potentials, electron affinities, bond energies, heats of phase transitions, band and lattice energies), optical properties (refractive index, polarisability), spectroscopic characteristics and geometrical parameters (bond distances and angles, coordination numbers) of substances in gaseous, liquid and solid states, in glasses and melts, for various thermodynamic conditions. Systems of metallic, covalent, ionic and van der Waals radii, effective atomic charges and other empirical and semi-empirical models are critically revised. Special attention is given to new and growing areas: structural studies of solids under high pressures and van der Waals molecules in gases. The book is addressed to researchers, academics, postgraduates and advanced-course students in crystallography, materials science, physical chemistry of solids.
Download or read book Halonium Ions written by George A. Olah and published by John Wiley & Sons. This book was released on 1975-10 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthetic Inorganic Chemistry by : Ewan J. M. Hamilton
Download or read book Synthetic Inorganic Chemistry written by Ewan J. M. Hamilton and published by Elsevier. This book was released on 2021-04-17 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthetic Inorganic Chemistry: New Perspectives presents summaries of the work of some of the most creative researchers in the field. The book highlights the most novel approaches and burgeoning applications of synthetic inorganic chemistry in development. Topics include non-precious metals in catalysis, smart inorganic polymers, new inorganic therapeutics, new photocatalysts for hydrogen production, and more. As the first volume in the Developments in Inorganic Chemistry series, this work is a valuable resource for students and researchers working in inorganic chemistry and material science. Illustrates the scope and vitality of modern synthetic inorganic chemistry Shows the centrality of inorganic chemistry, addressing a variety of global challenges Serves to define the current, important and expanding roles of synthetic inorganic chemistry in interdisciplinary areas such as materials science, synthetic organic chemistry, homogeneous and heterogeneous catalysis
Book Synopsis Chemistry of Atomic Layer Deposition by : Seán Thomas Barry
Download or read book Chemistry of Atomic Layer Deposition written by Seán Thomas Barry and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-11-08 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will help chemists and non-chemists alike understand the fundamentals of surface chemistry and precursor design, and how these precursors drive the processes of atomic layer deposition, and how the surface-precursor interaction governs atomic layer deposition processes. The underlying principles in atomic layer deposition rely on the chemistry of a precursor with a surface.
Book Synopsis Cellulosic Materials by : Wadood Hamad
Download or read book Cellulosic Materials written by Wadood Hamad and published by Springer Science & Business Media. This book was released on 2002 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this book are twofold : To provide a thorough examination of the materials science of cellulosic fibers with emphasis on the characterization of structure-property relations, and To advance knowledge of how to best analyze cellulosic fibrous networks and composites, and, ultimately, engineer 'novel' cellulose-based systems of superior performance and functionality. The book is structured in five chapters which provide a sequential treatment of the running theme : deformation mechanics and the physical, morphological and mechanical characterization of native cellulose fibers networks and composites. (Midwest).
Book Synopsis Single-Molecule Magnets by : Malgorzata Holynska
Download or read book Single-Molecule Magnets written by Malgorzata Holynska and published by John Wiley & Sons. This book was released on 2019-02-11 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concise overview of synthesis and characterization of single molecule magnets Molecular magnetism is explored as an alternative to conventional solid-state magnetism as the basis for ultrahigh-density memory materials with extremely fast processing speeds. In particular single-molecule magnets (SMM) are in the focus of current research, both because of their intrinsic magnetization properties, as well as because of their potential use in molecular spintronic devices. SMMs are fascinating objects on the example of which one can explain many concepts. Single-Molecule Magnets: Molecular Architectures and Building Blocks for Spintronics starts with a general introduction to single-molecule magnets (SMM), which helps readers to understand the evolution of the field and its future. The following chapters deal with the current synthetic methods leading to SMMs, their magnetic properties and their characterization by methods such as high-field electron paramagnetic resonance, paramagnetic nuclear magnetic resonance, and magnetic circular dichroism. The book closes with an overview of radical-bridged SMMs, which have shown application potential as building blocks for high-density memories. Covers a hot topic – single-molecule magnetism is one of the fastest growing research fields in inorganic chemistry and materials science Provides researchers and newcomers to the field with a solid foundation for their further work Single-Molecule Magnets: Molecular Architectures and Building Blocks for Spintronics will appeal to inorganic chemists, materials scientists, molecular physicists, and electronics engineers interested in the rapidly growing field of study.
Book Synopsis Bio-inspired Surfaces And Applications by : Yuehao Luo
Download or read book Bio-inspired Surfaces And Applications written by Yuehao Luo and published by World Scientific. This book was released on 2016-06-21 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: Through millions of years' natural selection, sharkskin has developed into a kind of drag-reducing surface. This book shows how to investigate, model, fabricate and apply sharkskin's unique surface properties, creating a flexible platform for surface and materials engineers and scientists to readily adopt or adapt for their own bio-inspired materials.Rather than inundate the reader with too many examples of materials inspired by nature, sharkskin has been chosen as the center-piece to illustrate accurate 3D digital modeling of surfaces, complete numerical simulation of micro flow field, different fabrication methods, and application to natural gas pipelining. This is a must-read for any researcher or engineer involved in bio-inspired surfaces and materials studies.
Book Synopsis Conjugated Polymeric Materials: Opportunities in Electronics, Optoelectronics, and Molecular Electronics by : J.L. Brédas
Download or read book Conjugated Polymeric Materials: Opportunities in Electronics, Optoelectronics, and Molecular Electronics written by J.L. Brédas and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the Proceedings of the NATO Advanced Research Workshop on Conjugated Polymers held at the University of Mons, Belgium, during the first week of September 1989. The Workshop was attended by about fifty scientists representing most of the leading research groups within NATO countries, that have contributed to the development of conjugated polymeric materials. The program was focused on applications related to electrical conductivity and nonlinear optics. The attendance was well balanced with a blend of researchers from academic, industrial, and government labs, and including synthetic chemists, physical chemists, physicists, materials scientists, and theoreticians. The Workshop provided an especially timely opportunity to discuss the important progress that has taken place in the field of Conjugated Polymers in the late eighties as well as the enormous potential that lies in front of us. Among the recent significant developments in the field, we can cite for instance: (i) The discovery of novel synthetic routes affording conjugated polymers -that are much better characterized, especially through control of the molecular weight; - that can be processed from solution or the melt; the early promise that conducting polymcrs would constitute materials combining the electrical conductivities of metals with the mechanical properties of plastics is now being realized; -that can reach remarkably high conductivities.
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