Download or read book Invesitgation of Nickel II oximate Complexes that React with Molecular Oxygen written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ni(II) complexes containing amidates and thiolates have been shown to react with O2 via irreversible ligand oxidation. We have constructed a series of Ni(II) complexes based on a tripodal amine bis(oxime) ligand framework. These complexes display oxygen reactivity upon deprotonation of the oximes without requiring irreversible ligand oxidation. This project investigated the reaction involving one of the complexes in the library, [Ni(TRISOXH3)(NO3)(H2O)](NO3)ʺ (H2O), where TRISOXH3 = (tris(1-propan-2-onyl oxime)amine). It was discovered that the reaction of this complex with molecular oxygen is contingent upon the presence of a source of hydrogen atoms. This two-hydrogen atom donor acts as a substrate. Several primary alcohols, including the relatively inert methanol, and amines were catalytically oxidized by this reaction. Spectroscopic analysis using a variety of techniques has demonstrated that reversible oxidation occurs on the oximate nitrogen to form an iminoxyl radical. Many of the other complexes in the series were also investigated to examine their electronic structure, their electrochemical properties, and their ability to oxidize methanol.
Download or read book Synthesis of Nickel II peptide Complexes for DNA Cleavage with Molecular Oxygen written by Ronelito Josue Perez and published by . This book was released on 1994 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Nickel Complexes with Relevance to Nickel Acireductone Dioxygenase and Nickel Superoxide Dismutase written by Margo Nicole Montgomery and published by . This book was released on 2012 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research presents an investigation of synthetic model complexes with relevance to the active site of Ni(II) acireductone dioxygenase (Ni-ARD) and Ni(II) superoxide dismutase (Ni-SOD). Acireductone dioxygenases (ARDs) are a unique set of enzymes found in the methionine salvage pathway that catalyze the oxidation reaction of acireductone (1, 2-dihydroxy-3-oxo-5-(methylthio)pent-1-ene). These enzymes share a common polypeptide sequence but bind different metal ions, Ni 2+ or Fe2+, at the active site. The Ni-ARD enzyme is responsible for the off pathway shunt in the pathway. Using the tridentate nitrogen donor ligands hydrotris(3,5-dimethyl-1-pyrazolyl)borate (Tp*) and the newly developed tris(1, 2-dimethyl-4-imadozyl)carbinol, (4-TIC Me, Me) several reactions involving the acireductone analog 2-hydroxy-1, 3-diphenylpropan-1, 3-dione and O2 were investigated for similarities to the Ni-ARD active site. Superoxide dismutases (SODs) play a key role in protecting cells against oxidative damage by regulating the cellular concentration of the superoxide radical (O2.- ) which is an unwanted byproduct of cellular metabolism. This process is accomplished by converting the superoxide radicals to hydrogen peroxide and molecular oxygen. Several small-molecule complexes were synthesized and characterized in an effort to model the reduced state of the Ni-SOD using the Tp* ligand. The structures for these complexes have been determined using X-Ray Crystallography.
Download or read book Binuclear Complexes of Cobalt Nickel and Copper and Activation of Molecular Oxygen by Transition Metal Complexes in the Oxidation of Olefinic Substrates written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation Into the Reaction Profile of a Bioinspired Nickel Complex written by Denver Heitger and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal complexes that can activate natural oxidants like H2O2 and O2 have become a key research topic in many labs in hope of mimicking nature, by generating a bioinspired complex that can perform unique chemistry through green processes. To prepare the perfect catalyst, this has lead scientists to explore numerous avenues, including the use of both natural and artificial oxidants, to tease apart the reaction pathway taking place. A ligand system dear to the Lucas Lab (13-DOB) has been metalated with nickel, a cheap and earth abundant transition metal. Our bioinspired metal-(di)oxygen adducts can be formed from H2O2, O2, mCPBA, and PhIO.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 1132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kinetic Study of Ligand Substitution Reactions of Five coordinate Nickel II Complexes written by Tsong-Dsu Chang Li and published by . This book was released on 1975 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quarterly Journal of the Chemical Society of London written by Chemical Society (Great Britain) and published by . This book was released on 1971 with total page 1138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research and Development Abstracts of the USAEC written by and published by . This book was released on 1962 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1982 with total page 1282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 2002 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Air Pollution Abstracts written by and published by . This book was released on 1971 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book N A P C A Abstract Bulletin written by United States. Environmental Protection Agency and published by . This book was released on 1971 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin of the Chemical Society of Japan written by Nihon Kagakkai and published by . This book was released on 1986 with total page 1502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Directory of Graduate Research written by American Chemical Society. Committee on Professional Training and published by . This book was released on 1983 with total page 1294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Chemistry written by and published by . This book was released on 1989 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abstracts of Papers American Chemical Society written by American Chemical Society. Meeting and published by . This book was released on 1968 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
