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Book Synthesis and Characterization of Nickel thiolate Complexes as a Model of the Active Site of Ni Fe Hydrogenase Enzymes

Download or read book Synthesis and Characterization of Nickel thiolate Complexes as a Model of the Active Site of Ni Fe Hydrogenase Enzymes written by Dao Hinh Nguyen and published by . This book was released on 1997 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Synthesis and Characterization a Series of Complexes and Their Photocatalytic Hydrogen Production

Download or read book Synthesis and Characterization a Series of Complexes and Their Photocatalytic Hydrogen Production written by yanju huang and published by . This book was released on 2020 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, a series of complexes [Ni(HNOR)2]n•5nH2O 1, [Cd(HNOR) 2 ] n 2 , [Zn(HNOR) 2 •2H 2 O] 3 and [Zr 2 (NOR) 4 ] n •3nH 2 O 4 ( H 2 NOR = Norfloxacin ) were synthesized by hydrothermal process. The structures of the complexes were determined by single-crystal X-ray diffraction. The complexes were characterized by IR and elemental analysis. At the same time, photocatalytic hydrogen production using the composite material photocatalysts under the visible light were studied with respect to reaction solvent, the composite material photocatalysts complex 1/g-C 3 N 4 and complex 4/g-C 3 N 4 displayed excellent photocatalytic rate of hydrogen production.

Book Synthesis and Characterization of Nickel II Complexes of a Hydrotrispyrazolylborato Ligand and of the Thiosalicylato Ligand

Download or read book Synthesis and Characterization of Nickel II Complexes of a Hydrotrispyrazolylborato Ligand and of the Thiosalicylato Ligand written by Weibin Chen and published by . This book was released on 1994 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Synthesis and Characterization of Nickel Imine amine Complexes a Possible Model for Nickel Superoxide Dismutase

Download or read book Synthesis and Characterization of Nickel Imine amine Complexes a Possible Model for Nickel Superoxide Dismutase written by Tom Muinde Mwania and published by . This book was released on 2012 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superoxide dismutases are ubiquitous enzymes that efficiently catalyze the disproportionation of superoxide radical anions to protect biological molecules from oxidative damage. Several SODs have been identified having different metals at their active sites. These include Mn SOD, Fe SOD, Cu/Zn SOD and, most recently, Ni SOD. The catalytic center of Ni SOD resides in the N-terminal active-site loop, where a Ni(II) is coordinated by the amine N of His-1, the amide N of Cys-2, and two thiolate S atoms of Cys-2 and Cys-6. In the oxidized form, Ni(III) adds the imidazole N of His-1 as an axial ligand. For the past decade, we have been developing methodology using 2, 2'-dithiodibenzaldehyde (DTDB) for the synthesis of metal complexes with mixed N/S coordination. We are reporting on the application of this methodology to the synthesis of model complexes for the active site of NiSOD, in which we have successfully synthesized and characterized three NiIIN2S2 complexes of imine/amine N donors: Ni(NNS)SPh (1), Ni(NNS)SPhNO2 (2) and Ni(NNS)StBu (3). These may be used as a model for reduced NiSOD, with future plans of comparing to complexes with amide/amine N donors, thus establishing the role of the amide.

Book Synthesis and Characterization of Nickel II Complexes with 1 4 7 10 tetrabenzyl 1 4 7 10 tetraazacyclododecane

Download or read book Synthesis and Characterization of Nickel II Complexes with 1 4 7 10 tetrabenzyl 1 4 7 10 tetraazacyclododecane written by George A. Kalligeros and published by . This book was released on 1971 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Iridium III in Optoelectronic and Photonics Applications

Download or read book Iridium III in Optoelectronic and Photonics Applications written by Eli Zysman-Colman and published by John Wiley & Sons. This book was released on 2017-03-07 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fundamental photophysical properties of iridium(III) materials make this class of materials the pre-eminent transition metal complex for use in optoelectronic applications. Iridium(III) in Optoelectronic and Photonics Applications represents the definitive account of photoactive iridium complexes and their use across a wide variety of applications. This two-volume set begins with an overview of the synthesis of these complexes and discusses their photophysical properties. The text highlights not only mononuclear complexes but also the properties of multinuclear and polymeric iridium-based materials and the assembly of iridium complexes into larger supramolecular architectures such as MOFs and soft materials. Chapters devoted to the use of these iridium-based materials in diverse optoelectronic applications follow, including: electroluminescent devices such as organic light emitting diodes (OLEDs) and light-emitting electrochemical cells (LEECs); electrochemiluminescence (ECL); bioimaging; sensing; light harvesting in the context of solar cell applications; in photoredox catalysis and as components for solar fuels. Although primarily targeting a chemistry audience, the wide applicability of these compounds transcends traditional disciplines, making this text also of use to physicists, materials scientists or biologists who have interests in these areas.

Book Synthesis of Nickel thiolate Complexes

Download or read book Synthesis of Nickel thiolate Complexes written by Mendicute Fierro Claudio and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Development of Nickel Complexes as Photocatalysts for Hydrogen Evolution

Download or read book Development of Nickel Complexes as Photocatalysts for Hydrogen Evolution written by and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Synthesis and Characterization of Nickel Palladium and Chromium Complexes as Olefin Oligomerization Catalysts

Download or read book Synthesis and Characterization of Nickel Palladium and Chromium Complexes as Olefin Oligomerization Catalysts written by Moses Mokgolela Mogorosi and published by . This book was released on 2009 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Organometallics and Related Molecules for Energy Conversion

Download or read book Organometallics and Related Molecules for Energy Conversion written by Wai-Yeung Wong and published by Springer. This book was released on 2015-03-30 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a critical perspective of the applications of organometallic compounds (including those with metal or metalloid elements) and other related metal complexes as versatile functional materials in the transformation of light into electricity (solar energy conversion) and electricity into light (light generation in light emitting diode), in the reduction of carbon dioxide to useful chemicals, as well as in the safe and efficient production and utilization of hydrogen, which serves as an energy storage medium (i.e. energy carrier). This book focuses on recent research developments in these emerging areas, with an emphasis on fundamental concepts and current applications of functional organometallic complexes and related metal-based molecules for energy research. With contributions from front-line researchers in the field from academia and industry, this timely book provides a valuable contribution to the scientific community in the field of energy science related to metal-based molecular materials. Wai-Yeung Wong, PhD, is Chair Professor and Head of the Department of Chemistry at Hong Kong Baptist University, Hong Kong, P. R. China.

Book Synthesis and Characterization of Nickel Complexes with Relevance to Nickel Acireductone Dioxygenase and Nickel Superoxide Dismutase

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.