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:
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:
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).
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.
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:
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 Handbook of Chalcogen Chemistry written by Francesco Devillanova and published by Royal Society of Chemistry. This book was released on 2013-07-25 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Chalcogen Chemistry: New Perspectives in Sulfur, Selenium and Tellurium provides an overview of recent developments, particularly from the last decade, on the chemistry of the chalcogen group elements (S, Se and Te). While up to a few decades ago, chalcogen chemistry was mainly centred on sulphur, in recent years the research based on Se and Te has increased dramatically, and has created huge scope for the use of compounds based on this type of chemistry. The Handbook is organised into two parts, the first of which deals systematically with the chemistry of chalcogens in relation to other group elements in the periodic table. It also includes an overview of metal-chalcogenides and metal-polychalcogenides. The second part reflects the interdisciplinary nature of chalcogen chemistry and focuses on biological, materials and supramolecular aspects of the field. This Handbook gives a comprehensive overview on recent developments over the last decade and is ideal for researchers in the field.
Download or read book Chalcogen nitrogen Chemistry From Fundamentals To Applications In Biological Physical And Materials Sciences Updated Edition written by Tristram Chivers and published by World Scientific. This book was released on 2021-10-12 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chalcogen-nitrogen chemistry involves the study of compounds that exhibit a linkage between nitrogen and sulfur, selenium or tellurium atoms. Since the publication of A Guide to Chalcogen-Nitrogen Chemistry in 2005, the emphasis of investigations of chalcogen-nitrogen compounds has advanced from a focus on fundamental studies to the development of practical applications, as indicated by the title of this new edition. Pharmaceutical applications of organic sulfur-nitrogen compounds include drugs for the treatment of various diseases, as well as probes for locating tumour cells. From a materials perspective, carbon-containing chalcogen-nitrogen heterocycles have applications in everyday devices such as LEDs and solar cells. A new technology based on binary sulfur nitrides is being used for fingerprint detection in forensic science. As a result, this book includes seven new chapters and updates the others with extensive literature coverage of developments since 2005 while retaining earlier seminal results. This comprehensive text is essential for anyone working in the field, and the four introductory chapters emphasise general concepts that will be helpful to the non-specialist. The treatment is unique in providing a comparison of sulfur, selenium and tellurium compounds. Each chapter is designed to be self-contained, and there are extensive cross-references between chapters.
Download or read book Immobilized Catalysts written by Andreas Kirschning and published by Springer Science & Business Media. This book was released on 2004-11-22 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: R. Haag, S. Roller: Polymeric Supports for the Immobilisation of Catalysts .- J. Horn, F. Michalek, C.C. Tzschucke, W. Bannwarth: Non-Covalently Solid-Phase Bound Catalysts for Organic Synthesis .- Y. Uozumi: Recent Progress in Polymeric Palladium Catalysts for Organic Synthesis .- D.E. Bergbreiter, J. Li: Applications of Catalysts on Soluble Supports .- B. Desai, C.O. Kappe: Microwave-Assisted Synthesis Involving Immobilized Catalysts .- A. Kirschning, G. Jas: Applications of Immobilized Catalysts in Continuous Flow Processes .- N. End, K.-U. Schöning: Immobilized Catalysts in Industrial Research and Application .- N. End, K.-U. Schöning: Immobilized Biocatalysts in Industrial Research and Production
Download or read book Contemporary Boron Chemistry written by Matthew G Davidson and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continued and evolving significance of boron chemistry to the wider chemical community is demonstrated by the international and interdisciplinary nature of the research reported in this book. Contemporary Boron Chemistry encompasses inorganic and organic compounds as well as polymers, solid-state materials, medicinal aspects and theoretical studies. Covering many areas of chemistry with boron at its centre, topics include applications to polyolefin catalysis, medicine, materials and polymers; boron cluster chemistry, including carboranes and metal-containing clusters; organic and inorganic chemistry of species containing only 1 or 2 boron atoms; and theoretical studies of boron-containing compounds. New materials with novel optical and electronic properties are also discussed. Comprehensive and up to date, graduates and researchers in a wide range of fields, particularly those in organometallic and organic chemistry and materials science, will welcome this book.
Download or read book Comprehensive Organometallic Chemistry II written by Richard J. Puddephatt and published by Elsevier. This book was released on 1995 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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
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:
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.
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).
Download or read book Boranes and Metalloboranes written by Catherine E. Housecroft and published by Ellis Horwood. This book was released on 1990 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organophosphorus Stereochemistry Origins and P III and IV compounds written by William Edwin McEwen and published by Dowden Hutchinson and Ross. This book was released on 1975 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
