Download or read book Synthesis and Characterization of New Boron Nitrogen and Boron Nitrogen Phosphorus Systems written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The preparative and derivative chemistry of organoborane compounds that contain silicon-nitrogen functional groups is both diverse and synthetically useful. The wide variety of reactions that can occur at boron, in combination with facile cleavage of the Si-N bond, makes them potential precursors to polymeric B-N systems. We report here on the synthesis, characterization, and reactivity of three representative examples of the title systems of general types 1 and 2. Some of these systems are being studied as the precursors to new types of inorganic-organic hybrid polymers and/or novel ring systems.
Download or read book Synthesis and Characterization of New Precursors to Boron nitrogen Polymers written by Sonya Yvette Shaw and published by . This book was released on 1988 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Phosphorus Based Polymer Systems written by Robert H. Neilson and published by . This book was released on 1988 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the results obtained on this ONR Contract during the period 6/84 - 9/87 dealing with the synthesis, characterization, and reactivity of new phosphorus based polymers and their precursors. Some results in a new area of boron-nitrogen chemistry are also reported. Lists of personnel working on the contract and the publications arising from it are included. Keywords: Phosphine, Phosphazene, Phosphoranimine, Boron nitrogen, Imino borane, Polymer.
Download or read book The Synthesis and Characterization of Several Boron nitrogen Compounds written by Brian Washburn and published by . This book was released on 1973 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of 4 aryl Substituted Silicon nitrogen boron and Silicon nitrogen Systems written by Kyralyssa Elayne Hauger and published by . This book was released on 2016 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Neilson group has developed a broad spectrum of derivative chemistry originating from the study of boron compounds containing silicon-nitrogen functional groups. Some of our current research interests have focused on investigating compounds containing Si-N moieties attached to a 4-substituted aryl (Ar) functionality to afford silylanilino derivatives. Due to the variety of reactions that can occur at the boron center, combined with the reactivity of the Si-N bond, some of these compounds have the potential to be precursors to new cyclic and/or polymeric systems, for example poly(phenylene-borazenes), i.e. new inorganic-organic hybrid polymers in which the borazene ( -BR-NR'- ) and arylene ( -C6H4- ) units alternate along the backbone. The work to be presented focuses on the synthesis, characterization and reactivity of some representative examples of 4-aryl substituted (silylanilino)boranes. To be discussed are two classes of title compounds of type I, (silylanilino)boranes with the Ar-N-B backbone, and type II, (silylanilino)boranes with the B-Ar-N backbone. With.
Download or read book Synthesis and Characterization of Boron nitrogen Datively Bonded Supramolecular Assemblies and Rotors written by Jeffrey Edward Lux and published by . This book was released on 2012 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Boron Nitrogen Compounds written by Kurt Niedenzu and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the chemistry of boron is still relatively young, it is developing at a pace where even specific areas of research are difficult to compile into a monograph. Besides the boron hydrides, boron-nitrogen compounds are among the most fascinating derivatives of boron. Nitrogen compounds exist in a wide variety of molecular structures and display many interesting properties. The combination of nitrogen and boron, however, has some unusual features that are hard to match in any other combination of elements. This situation was first recognized by ALFRED STOCK and it seems proper to pay tribute to his outstanding work in the area of boron chemistry. One should realize that about forty years ago, STOCK and his coworkers had to develop completely new experimental techniq'\les and that no guidance for the interpreta tion of their rather unusual data had been advanced by theoretical chemists. In this monograph an attempt has been made to explore the general characteristics of structure and the principles involved in the preparation and reactions of boron-nitroge~ compounds. It was a somewhat difficult task to select that information which appears to be of the most interest to "inorganic and general chemistry" since the electronic relationship between a boron-nitrogen and a carbon-carbon grouping is reflected in the "organic" character of many of the reactions and compounds.
Download or read book Synthesis and Characterization of New Binuclear Boron Compounds with Bridging Guanidinate Ligands written by Oxana Ciobanu and published by . This book was released on 2009 with total page 0 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 Organoboron Chemistry Boron nitrogen and boron phosphorus compounds written by Howard Steinberg and published by . This book was released on 1964 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis of New Boron Nitrogen Compounds and Oligosilanes written by Fabian Georg Müller and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ocho cuentos de Puerto Rico written by and published by . This book was released on 1966 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Cubic Boron Nitride written by Ka Man Chan and published by . This book was released on 2004 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Boron nitrogen and boron phosphorus compounds written by Howard Steinberg and published by . This book was released on 1964 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational Design and Synthesis of Boron nitrogen Containing Heterocycles written by Gabriel J. Lovinger and published by . This book was released on 2013 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Proceedings of the Seventh International Symposium on Inorganic Ring Systems IRIS VII written by Tristan Chivers and published by Taylor & Francis. This book was released on 1995-02 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
