Structural and Chemical Relationships in Metal Phosphine Complexes Relevant to Homogeneous Catalysis - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Structural and Chemical Relationships in Metal Phosphine Complexes Relevant to Homogeneous Catalysis write by Peter Ndula Bungu. This book was released on 2010. Structural and Chemical Relationships in Metal Phosphine Complexes Relevant to Homogeneous Catalysis available in PDF, EPUB and Kindle.
Crystal and Molecular Structures of Some Transition Metal Phosphine Complexes, and Their Relevance to Homogeneous Catalysis
Crystal and Molecular Structures of Some Transition Metal Phosphine Complexes, and Their Relevance to Homogeneous Catalysis - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Crystal and Molecular Structures of Some Transition Metal Phosphine Complexes, and Their Relevance to Homogeneous Catalysis write by Ursula Anne Gregory. This book was released on 1971. Crystal and Molecular Structures of Some Transition Metal Phosphine Complexes, and Their Relevance to Homogeneous Catalysis available in PDF, EPUB and Kindle.
The Relationship Between Structure and Interaction in Noble Metal Phosphine Complexes
The Relationship Between Structure and Interaction in Noble Metal Phosphine Complexes - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Relationship Between Structure and Interaction in Noble Metal Phosphine Complexes write by Daniel Thomas Walters. This book was released on 2020. The Relationship Between Structure and Interaction in Noble Metal Phosphine Complexes available in PDF, EPUB and Kindle. This text includes multiple interconnected projects that explore the chemistry of gold(I) phosphine complexes for purposes of elucidating the interactions of monovalent gold centers both with and without aurophilic attractions. These studies expressly focus upon the solid state properties, where structural determination via X-ray crystallography is key. The first chapter focuses on the series of complexes Au2([mu]-dppe)X2 (dppe is 1,2-bis(diphenylphosphino)ethane, X = Cl, Br, I) and Au2([mu]-dcpe)X2 (where dcpe is 1,2-bis(dicyclohexylphosphino)ethane). Previous work had focused on luminescent characteristics of similar complexes, but the phosphine ligands contained fluorophoric phenyl moieties that could be identified as contributors to this phenomenon. In addition, prior comparable studies had similar ligands that displayed a propensity towards polymeric or pseudo-polymeric structures, and the increased steric bulk of cyclohexyl groups was utilized to inhibit the formation of such aggregation. This study clarifies and infers the innocent nature of the dppe ligand with regards to luminescence displayed in monovalent gold complexes containing aurophilic interactions, allowing the emissions to be more confidently attributed to the metal-metal interactions. The second chapter focuses on the synthesis and interconversion of a series of complexes comprised of triphos (bis(2-diphenylphosphinoethyl)phenylphosphine), bridging monovalent gold atoms, and non-coordinating anions. Helicate ([Au3(Triphos)2]3+) systems may form monomeric units, or dimerize with bridging chloride anions, but do not display tendencies towards polymeric formations. Gold box systems ([Au6(Triphos)4Cl]5+) may form with EF6− type anions, with a complex packing structure displaying a fascinating dependency upon cavity occupancy on the molecule's surface as well as its interior. Each of these systems display distinct luminescence and these may be readily interconverted through mechanical stimuli or a recrystallization that is sensitive to specific solvent systems. The third chapter focuses on a series of complexes analogous to those in the second chapter, but utilizing bromide ions in the places previously occupied by chloride. The same helicate,bridged dimer, and gold box interconversions are observed, with the additional possibility of a second encapsulated bromide anion. These systems display much more selective luminescence with greater diversity, and mechanical stimuli resulted in the observation of transformation through negative mechanochromism where the previous case was positive mechanochromism. The box moieties and their transitions appear to be dictated by localized interactions with anions and solvent resting within nested formations of phenyl rings. Within these studies, the box has been identified as a viable luminescent molecular container for small anions with the assistance of appropriately sized solvent molecules (e.g. toluene), but the di-bromo box system implies a greater variation for content size. A system of such extreme lability and fluxionality may have excellent potential as a selective capture agent, especially with such simplistic conformation away from a container room temperature mechanical grinding at room temperature or dissolving in a solvent that inhibits box formation such as methanol.
Copper(I) Chemistry of Phosphines, Functionalized Phosphines and Phosphorus Heterocycles
Copper(I) Chemistry of Phosphines, Functionalized Phosphines and Phosphorus Heterocycles - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Copper(I) Chemistry of Phosphines, Functionalized Phosphines and Phosphorus Heterocycles write by Maravanji S. Balakrishna. This book was released on 2019-04-25. Copper(I) Chemistry of Phosphines, Functionalized Phosphines and Phosphorus Heterocycles available in PDF, EPUB and Kindle. Copper(I) Complexes of Phosphines, Functionalized Phosphines and Phosphorus Heterocycles is a comprehensive guide to one of the most widely used and extensively studied metals: copper. The numerous practical applications of copper compounds are discussed, including homogeneous and heterogeneous catalysis and their use as fungicides, pesticides, pigments for paints, resins and glasses, and in high-temperature superconductors. The remarkable structural flexibility of simple copper(I) complexes, such as cuprous halides is covered, including numerous structural motifs that, when combined with different ligand systems, exhibit linear, trigonal planar or tetrahedral geometries. This work is an essential reference for inorganic and coordination chemists, as well as researchers working on catalysis, anticancer reagents, luminescence, fluorescence and photophysical aspects. Discusses the properties of copper and similarities to noble metals, such as their corrosion resistance, high thermal and electrical conductivity and rich coordination chemistry Includes the copper(I) coordination chemistry of tertiary phosphines, bisphosphines and phosphines containing other donor atoms and their potential application in catalysis, biosystems and photochemical areas Features a discussion of the rich photochemistry exhibited by some mixed-ligand copper(I) complexes (phosphines with heteroaromatic ligands) which can exhibit coprophilic interactions, photoluminescence and thermochromic properties
Phosphorus(iii) Ligands in Homogeneous Catalysis
Phosphorus(iii) Ligands in Homogeneous Catalysis - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Phosphorus(iii) Ligands in Homogeneous Catalysis write by Paul Kamer. This book was released on 2012-07-01. Phosphorus(iii) Ligands in Homogeneous Catalysis available in PDF, EPUB and Kindle. Over the last 60 years the increasing knowledge of transition metal chemistry has resulted in an enormous advance of homogeneous catalysis as an essential tool in both academic and industrial fields. Remarkably, phosphorus(III) donor ligands have played an important role in several of the acknowledged catalytic reactions. The positive effects of phosphine ligands in transition metal homogeneous catalysis have contributed largely to the evolution of the field into an indispensable tool in organic synthesis and the industrial production of chemicals. This book aims to address the design and synthesis of a comprehensive compilation of P(III) ligands for homogeneous catalysis. It not only focuses on the well-known traditional ligands that have been explored by catalysis researchers, but also includes promising ligand types that have traditionally been ignored mainly because of their challenging synthesis. Topics covered include ligand effects in homogeneous catalysis and rational catalyst design, P-stereogenic ligands, calixarenes, supramolecular approaches, solid phase synthesis, biological approaches, and solubility and separation. Ligand families covered in this book include phosphine, diphosphine, phosphite, diphosphite, phosphoramidite, phosphonite, phosphinite, phosphole, phosphinine, phosphinidenene, phosphaalkenes, phosphaalkynes, P-chiral ligands, and cage ligands. Each ligand class is accompanied by detailed and reliable synthetic procedures. Often the rate limiting step in the application of ligands in catalysis is the synthesis of the ligands themselves, which can often be very challenging and time consuming. This book will provide helpful advice as to the accessibility of ligands as well as their synthesis, thereby allowing researchers to make a more informed choice. "Phosphorus(III) Ligands in Homogeneous Catalysis: Design and Synthesis" is an essential overview of this important class of catalysts for academic and industrial researchers working in catalyst development, organometallic and synthetic chemistry.
