Download or read book Oxidation of Iron Porphyrins by Molecular Oxygen written by William Hallinan Wood and published by . This book was released on 1967 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mechanism of Catalytic Hydrocarbon Oxidation by Molecular Oxygen and Halogenated Ruthenium and Iron Porphyrins written by Eva Rachel Birnbaum and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highly halogenated ruthenium and iron porphyrins are shown to be active catalysts for alkene oxidation with dioxygen or iodosobenzene. The synthesis and characterization of beta-octachloro-tetrakis (pentafluorophenyl)porphyrinato-ruthenium(II) carbonyl RuTFPPCl8(CO) and beta -octabromo-tetrakis(pentafluorophenyl)porphyrinato- iron(III) chloride Fe(TFPPBr8)Cl are reported. Crystal structures of RuTFPPCl8(CO) and the zinc and free ligand precursor complexes show extensive distortion of the halogenated porphyrin macrocycles due to steric interactions between the beta-chlorine atoms and the pentafluorophenyl rings. 19F NMR is developed as a method to characterize both paramagnetic and diamagnetic fluorinated porphyrins in solution. The anodically shifted reduction potentials and red shifted absorptions in the UV-Vis spectroscopy of the halogenated porphyrins are discussed in terms of steric and electronic effects on porphyrin frontier orbitals.
Download or read book Metalloporphyrins Catalyzed Oxidations written by F. Montanari and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxidative catalysis by metalloporphyrin systems occupies a prominent role in the current research in the fields of chemical and biological catalysis. Our particular interest and approach has been to collect in the same volume papers dealing with both the chemical and biological aspects of the reactivity of heme systems because of the realization that a better understanding of the complementary discipline can be extremely useful for the researchers from either field. The current progress of the research on synthetic metalloporphyrin catalysts has led to the development of several systems that are able to reproduce the heme-enzyme mediated oxygenation and oxidation reactions, at least in terms of reaction types, mechanisms and often rates. These achievements have stimulated the of creating metalloporphyrin catalysts which are both ambitious project efficient and stable enough to become competitive for large-scale industrial processes. Although this project is still far from being realized, the efforts in this direction parallel those aimed at the application of heme enzymes to chemical technologies, e. g. for the mild, selective oxidation of organics or the detoxification of pollutants. Both the two approaches will be advantageous because while the enzyme systems can achieve selectivities which are probably unattainable by synthetic catalysts, the latter can be active under experimental conditions that would readily inactivate the enzymes.
Download or read book Iron Porphyrins written by A. B. P. Lever and published by Wiley-VCH. This book was released on 1989-03-31 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Porphyrins play a vital role in many biological functions including oxygen transport, electron transfer and catalyzing the incorporation of oxygen into other molecules. This current survey discusses the use of modern physical techniques to probe porphyrin structure and function. The authors review the data available through a particular technique and show what can be learned therefrom about the (electronic) structure and function of biologically important porphyrins. The techniques include magnetic circular dichroism, X-ray absorption fine structure (EXAFS) and Mössbauer spectroscopies. All contributors are well known in their respective fields, enjoying world-wide reputation.
Download or read book Metalloporphyrins in Catalytic Oxidations written by Roger A. Sheldon and published by CRC Press. This book was released on 1994-06-28 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides an in-depth overview of the chemistry of metalloporphyrins as oxidation catalysts in chemical and biological systems. It discusses practical techniques for the synthesis of metalloporphyrins and introduces useful methods of immobilization to improve their synthetic utility. Detailed discussions of underlying mechanistic features are provided.
Download or read book The Activation of Dioxygen and Homogeneous Catalytic Oxidation written by D.H.R. Barton and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph consists of the proceedings of the Fifth International Symposium on the Activation of Dioxygen and Homogeneous Catalytic Oxidation, held in College Station, Texas, March 14-19, 1993. It contains an introductory chapter authored by Professors D. H. R. Barton and D. T. Sawyer, and twenty-nine chapters describing presentations by the plenary lecturers and invited speakers. One of the invited speakers, who could not submit a manuscript for reasons beyond his control, is represented by an abstract of his lecture. Also included are abstracts of forty-seven posters contributed by participants in the symposium. Readers who may wish to know more about the subjects presented in abstract form are invited to communicate directly with the authors of the abstracts. This is the fifth international symposium that has been held on this subject. The first was hosted by the CNRS, May 21-29, 1979, in Bendor, France (on the Island of Bandol). The second meeting was organized as a NATO workshop in Padova, Italy, June 24-27, 1984. This was followed by a meeting in Tsukuba, Japan, July 12-16, 1987. The fourth symposium was held at Balatonfured, Hungary, September 10-14, 1990. The sixth meeting is scheduled to take place in Delft, The Netherlands (late Spring, 1996); the organizer and host will be Professor R. A. Sheldon.
Download or read book An Approach to the High Oxidation States of Iron Porphyrins written by Ru-Jen Cheng and published by . This book was released on 1982 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Porphyrin Handbook Volume 4 written by Karl Kadish and published by Elsevier. This book was released on 2000 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: How I Feel books help children ages 2-6 recognize and identify their emotions and give them a vocabulary to describe what they are feeling. If children can name an emotion, they are on their way to understanding it. And when children can talk about what they are feeling, their parents will be better able to help them.Features: -- 8 x 8 24-page hardcover or -- softcover full-color picture book -- Each book includes an activity card and reusable stickers -- Question-answer format stimulates conversation between parent and child
Download or read book Handbook Of Porphyrin Science With Applications To Chemistry Physics Materials Science Engineering Biology And Medicine Volumes 6 10 written by Karl M Kadish and published by World Scientific. This book was released on 2010-06-29 with total page 2807 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second set of Handbook of Porphyrin Science.Porphyrins, phthalocyanines and their numerous analogues and derivatives are materials of tremendous importance in chemistry, materials science, physics, biology and medicine. They are the red color in blood (heme) and the green in leaves (chlorophyll); they are also excellent ligands that can coordinate with almost every metal in the Periodic Table. Grounded in natural systems, porphyrins are incredibly versatile and can be modified in many ways; each new modification yields derivatives, demonstrating new chemistry, physics and biology, with a vast array of medicinal and technical applications.As porphyrins are currently employed as platforms for study of theoretical principles and applications in a wide variety of fields, the Handbook of Porphyrin Science represents a timely ongoing series dealing in detail with the synthesis, chemistry, physicochemical and medical properties and applications of polypyrrole macrocycles. Professors Karl Kadish, Kevin Smith and Roger Guilard are internationally recognized experts in the research field of porphyrins, each having his own separate area of expertise in the field. Between them, they have published over 1500 peer-reviewed papers and edited more than three dozen books on diverse topics of porphyrins and phthalocyanines. In assembling the new volumes of this unique Handbook, they have selected and attracted the very best scientists in each sub-discipline as contributing authors.This Handbook will prove to be a modern authoritative treatise on the subject as it is a collection of up-to-date works by world-renowned experts in the field. Complete with hundreds of figures, tables and structural formulas, and thousands of literature citations, all researchers and graduate students in this field will find the Handbook of Porphyrin Science an essential, major reference source for many years to come.
Download or read book The Porphyrin Handbook written by Karl Kadish and published by Elsevier. This book was released on 2000 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Porphyrin Handbook, Volume 19: Applications of Phthalocyanines provides information pertinent to every aspect of the chemistry, synthesis, spectroscopy, and structure of phthalocyanines. This book examines the biology and medical implications of porphyrin systems. Organized into five chapters, this volume begins with an overview of the basic photobiology of phthalocyanines, their structure-activity relationships, mechanisms of action in a variety of biological systems, and their potential applications for various medical purposes. This text then examines the type of organization of the molecules in the solid state and the intensity of the intermolecular interactions. Other chapters consider the applications of phthalocyanines as decorative and functional materials, with emphasis on properties and structures of phthalocyanines with industrial relevance. This book discusses as well the enzyme-like catalytic functions of metal complexes derivatives and their practical applications as odor-removing systems and bacterial systems based on their effective catalytic activities. This book is a valuable resource for research scientists, engineers, and clinicians.
Download or read book Coherent Synchronized Oxidation Reactions by Hydrogen Peroxide written by Tofik M. Nagiev and published by Elsevier. This book was released on 2006-12-19 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the relations between reactions in chemical and biochemical systems with special emphasis to high selective oxidation reactions by hydrogen peroxide. Outlines possible ways for the application of these reactions in an industrial scale. * Looking at new approaches to the synthesis and research of catalytic organic reactions by hydrogen peroxide* Discussing the important developments in the area of biomimetic catalysis* Covering biomimetic sensors, the new generation of analytical devices and their applications
Download or read book The Porphyrin Handbook written by Roger Guilard and published by Elsevier. This book was released on 2012-12-02 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Porphyrin Handbook, Volume 11: Bioinorganic and Bioorganic Chemistry presents the fundamental aspects of the synthesis, structure, chemistry, and spectroscopy of phthalocyanines. This book discusses the biology and medical implications of porphyrin systems. Organized into seven chapters, this volume begins with an overview of the design, synthesis, and study of the structural and functional models of heme/copper terminal oxidases. This text then examines the proteins containing iron-protoporphyrin IX (heme), which play key roles in photosynthesis and respiration. Other chapters consider the syntheses of chiral porphyrin derivatives and summarize the uses of such compounds in enantioselective control. This book discusses as well the reactivity and synthesis of synthetic carbine metalloporphyrins. The final chapter deals with the B12-coenzymes, which is the most complex and physiologically important organometallic enzymatic reactions that directly depend on the reactivity of metal coordinated organic ligands. This book is a valuable resource for research scientists, clinicians, and engineers.
Download or read book Oxygen Carrying Porphyrin protein Complexes written by Nirmalendu Datta-Gupta and published by . This book was released on 1993 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Porphyrins V5 written by David Dolphin and published by Elsevier. This book was released on 2012-12-02 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Porphyrins, Volume V: Physical Chemistry, Part C explores the physical chemistry of porphyrins, their precursors, catabolic derivatives, and related compounds. The book covers photochemical, electrochemical, and routes of electron transfer, as well as primary redox reactions of porphyrins and metalloporphyrins; oxygenation of hemoglobin and the interactions of metalloporphyrins with dioxygen; the kinetics of porphyrin metalation; and solid state phenomena. This volume is organized into 11 chapters and begins with an overview of electron transfer and the mechanisms of oxidation and reduction. The discussion then turns to porphyrin photochemical reactions and reversible electron transfer reactions of metalloporphyrins. Selected examples in which the oxidized or reduced complexes have been shown to play a biochemical role are provided. The following chapters focus on the isolation and characterization of the photosynthetic pigments and their aggregation and coordination properties, along with those of the porphyrins and metalloporphyrins. The book concludes with an analysis of solid state phenomena in porphyrins and related materials, paying particular attention to semiconduction, photoconduction, and superconduction. This book will be of value to inorganic, organic, physical, and biochemists interested in the physical chemistry of porphyrins.
Download or read book Oxygen Carrying Porphyrin protein Complexes written by Nirmalendu Datta-Gupta and published by . This book was released on 1990 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical kinetics written by Elena Burlakova and published by CRC Press. This book was released on 2005-10-28 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume is devoted to the problem of chemical kinetics on modern level. The book includes information on chemical physics of nanocomposites, degradation, stabilization and flammability of polymeric materials as well as free radical mechanism of oxidation of organic compounds, thermostability, mechanism of action of catalytical systems and inhibi
Download or read book Cytochrome P450 written by Paul R. Ortiz de Montellano and published by Springer Science & Business Media. This book was released on 2007-02-05 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cytochrome P450: Structure, Mechanism, and Biochemistry, third edition is a revision of a review that summarizes the current state of research in the field of drug metabolism. The emphasis is on structure, mechanism, biochemistry, and regulation. Coverage is interdisciplinary, ranging from bioinorganic chemistry of cytochrome P450 to its relevance in human medicine. Each chapter provides an in-depth review of a given topic, but concentrates on advances of the last 10 years.