5 edition of Metal ion activation of dioxygen found in the catalog.
Metal ion activation of dioxygen
|Statement||edited by Thomas G. Spiro.|
|Series||Metal ions in biology ;, v. 2|
|Contributions||Spiro, Thomas G., 1935-|
|LC Classifications||QP535.O1 M45|
|The Physical Object|
|Pagination||ix, 247 p. :|
|Number of Pages||247|
|LC Control Number||80125722|
Graphene sheet/polymeric carbon nitride nanocomposite (GSCN) functions as a metal-free catalyst to activate O2 for the selective oxidation of secondary C–H bonds of cyclohexane. By fine-tuning the weight ratio of graphene and carbon nitride components, GSCN offers good conversion and high selectivity to corresponding ketones. Besides its high stability, this catalyst also exhibits high Cited by: Activation of Dioxygen by Halocarbon Ions Other aspects of the positive ion chemistry of dioxygen with various halogen-containing ions are also discussed. Dioxygen activation by halocarbon ions suggests additional channels that might affect the fate of halocarbons and the ozone balance in the atmosphere.
Quercetin 2,4-dioxygenase from Streptomyces sp. strain FLA (QueD FLA) is an enzyme of the monocupin family, which catalyzes the oxidative ring-cleaving reaction of quercetin using a nickel ion as the active site cofactor, and the iron ion that is necessary for most dioxygenases only shows low understand the reaction mechanism and the activation of dioxygen by the nickel ion, we. “The Effects of Redox-Inactive metal Ions on the Activation of Dioxygen: Isolation and Characterization of a Heterobimetallic Complex Containing a Mn III –(μ-ΟΗ)–Ca II Core,” J. .
This book is written for the research biochemist who needs to know more about the particular field of dioxygen metabolism, whether this be for designing lectures for a graduate level course or for his or her own research needs. We hope researchers in a given area of dioxygen metabolism will gain knowledge of related fields of dioxygen metabolism. We have decided to use the term dioxygen to. Activation of Molecular Oxygen at Transition Metal Centers and Intramolecular Activation of Molecular Oxygen by a Dioxygenase important potential method for the use of O 2 as oxidant is via its coordination to a transition metal, in our case, substituted within a polyoxometalate framework. Further reaction with another metal center can lead to oxygen-oxygen bond cleavage, formation.
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Additional Physical Format: Online version: Metal ion activation of dioxygen. New York: Wiley, © (OCoLC) Material Type: Internet resource. The activation of dioxygen by metal ions has both synthetic potential and biological relevance.
Dioxygen is the cleanest oxidant for use in emission-free technologies to minimize pollution of the environment. The book gives a survey of those catalyst systems based on metal complexes which have.
Metal ion activation of dioxygen (Metal ions in biology) Hardcover – January 1, by Thomas G. Spiro (Author) See all formats and editions Hide other formats and editions.
Price New from Used from Cited by: Metal Ion Activation of Dioxygen FEBS LETTERS December Volume 2 in the Metal Ions in Biology series Edited by T.
Spiro John Wiley and Sons; Brisbane, Chichester, New York, Toronto, xi + pages. U Metal ions are essential to all living organisms, yetAuthor: B. Halliwell. R.E. Berry, in Comprehensive Coordination Chemistry II, Introduction. Dioxygen is a relatively stable molecule whose reaction with most organic molecules is spin-forbidden.
Thus, there is much interest in the activation of the dioxygen molecule by coordination to a metal. These metal-coordinated species can be described as superoxo (M O 2 −) or peroxo (M O 2 2−).
The rational design of well-defined, first-row transition metal complexes that can activate dioxygen has been a challenging goal for the synthetic inorganic chemist. The activation of O2 is important in part because of its central role in the functioning of metalloenzymes, which utilize O2 to perform a number of challenging reactions including the highly selective oxidation of various by: The non-heme iron enzymes perform a broad range of functions, but most important is their role in the activation of dioxygen for the oxidation of different substrates.
Some of these oxidation reactions have little or no precedent in organic chemistry; hence there is a considerable interest in unraveling the catalytic mechanism of action of.
Metal Ion Activation of Dioxygen FEBS LETTERS December Volume 2 in the Metal Ions in Biology series Edited by T. Spiro John Wiley and Sons; Brisbane, Chichester, New York, Toronto, xi + pages.
U Metal ions are essential to all living organisms, yet. The subject of dioxygen activation and homogeneous catalytic oxidation by metal complexes has been in the focus of attention over the last 20 years. The widespread interest is illustrated by its recurring presence among the sessions and subject areas of important international conferences on.
The activation of dioxygen by metal ions has both synthetic potential and biological relevance. Dioxygen is the cleanest oxidant for use in emission-free technologies to minimize pollution of the environment.
The book gives a survey of those catalyst systems based on metal complexes which have been discovered and studied in the last decade. Utilization of dioxygen as the terminal oxidant at ambient temperature is always a challenge in redox chemistry, because it is hard to oxidize a stable redox metal ion like iron(III) to its high oxidation state to initialize the catalytic ed by the dioxygenation and co-oxidase activity of lipoxygenases, herein, we introduce an alternative protocol to activate the sluggish iron(III.
ISBN: OCLC Number: Description: 1 online resource: Contents: Opening Remarks --Dioxygen Complexes with Transition Metals --Bonding of Dioxygen to Transition Metals --Oxygen Binding by the Metalloproteins Hemerythrin, Hemocyanin, and Hemoglobin --Metal Oxo Complexes and Oxygen Activation --Kinetics of Formation.
This monograph consists of manuscripts, summary statements, and poster abstracts submitted by invited speakers and poster contributors who participated in the symposium "Oxygen Complexes and Oxygen Activation by Transition Metals," held March, at Texas A&M University. Mononuclear metal–oxygen species, such as metal-superoxo, -peroxo, -hydroperoxo and -oxo complexes, are key intermediates involved in dioxygen activation and oxidation reactions catalyzed by a.
The rational design of well-defined, first-row transition metal complexes that can activate dioxygen has been a challenging goal for the synthetic inorganic chemist. The activation of O2 is important in part because of its central role in the functioning of metalloenzymes, which utilize O2 to perform a number of challenging reactions including Cited by: Bioinorganic chemistry is a field that examines the role of metals in rganic chemistry includes the study of both natural phenomena such as the behavior of metalloproteins as well as artificially introduced metals, including those that are non-essential, in medicine and biological processes such as respiration depend upon molecules that fall within the realm of.
The interior of a living cell is a reducing environment, and many of the components of the cell are fully capable thermodynamically of reacting directly with dioxygen, thus bypassing the enzymes that control and direct the beneficial reactions of dioxygen.
6 Luckily, for reasons that are discussed below, these reactions generally are slow, and. Hydrogen bonds influence secondary coordination spheres around metal ions in many proteins. To duplicate these features of molecular architecture in synthetic systems, urea-based ligands have have been developed that create rigid organic frameworks when bonded to metal ions.
These frameworks position hydro-gen bond donors proximal to metal ion(s) to form specific chem-ical by: Request PDF | Iron Complexes and Dioxygen Activation | IntroductionDinuclear Iron Peroxo ComplexesTripodal Tetradentate Ligands and DerivativesMononuclear Iron Peroxo ComplexesMononuclear Iron Oxo.
The high reactivity of singlet dioxygen, generated by photochemical or chemical means, is well-documented. 18,19 However, such a pathway for a reaction of dioxygen, which is initially in its ground triplet state, would also require a high activation energy, since the lowest-energy singlet excited state of dioxygen is kcal/mol higher in.
This possible function of the redox inactive metal ion is reminiscent of the role that the H-bonding cavities have in metal complexes of our urea-base tripods (Figure 1): in these systems the positively polarized cavities promote the binding and activation of dioxygen through the formation of intramolecular H-bonds.
14,23 The results found with.Oxygen Complexes and Oxygen Activation by Transition Metals by Arthur E. Martell,available at Book Depository with free delivery worldwide.Dioxygen complexes are coordination compounds that contain O 2 as a ligand.
The study of these compounds is inspired by oxygen-carrying proteins such as myoglobin, hemoglobin, hemerythrin, and hemocyanin. Several transition metals form complexes with O 2, and many of these complexes form reversibly.
The binding of O 2 is the first step in many important phenomena, such as cellular .