Download or read book Synthesis and Characterization of a Series of Electronically Distinct Macrocyclic Ligands Evaluation of the Dioxygen Reactivity of a Cobalt II Heme protein Model written by David B. Morse and published by . This book was released on 1984 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Reactivity of Heterobimetallic Complexes with Phenolic Oxygens Bridged Ligands written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A new efficient method for the synthesis of dicompartmental ligands enalH 2 8 and of tnalH2, 10 is described. This method is essentially a concise one-step route via the Mannich condensation, from 4-methyl 2-formylphenol and paraformaldehyde with appropriate amines. A series of macrocyclic heterobimetallic complexes of type [Mc(tntnam)M o](PF6)n and [Mc'(tntnim)Ni](PF 6)n where Mc = Co(III) and Zn(II), Mc ' = Co(II), Co(III) and Zn(II) and Mo = Ni(II), Cu(II) and Zn(II) have been synthesized and characterized. The macrocyclic ligands tntnim 12 and tntnam 13 contain two geometrically distinct 6-coordinate (closed-site) and 4-coordinate (open-site) compartments which are bridged by phenolic oxygens. The heterobimetallic complexes with Zn(II) or Ni(II) in the open-site are primarily formed as 5-coordinate with a chloride ion as a fifth ligand; the latter can be removed by Ag+ ion. The 1H NMR and 13C NMR of diamagnetic complexes and [Co(tntnam)ZnCl](PF6)2, 27 and [Co(tntnam)Zn](PF6)3, 28 demonstrate that the expected trans pyridine structures are formed. Solution magnetic moments of heterobimetallic complexes indicate that all Co(III) ions are spin paired, but the Ni(II) ions are spin free. The electronic absorption and emission spectra and redox couples are reported. The crystal structures of [Zn(tntnim)NiCl]PF 6C2H5OH, 16, [Zn(tntnam)Ni](PF 6)2, 22, [Zn(tntnam)Cu](PF6) 2, 23, and [Co(tnmam)Ni(H2O)](PF6) 34H2O, 25 were determined. The crystal structures demonstrate that the expected 'trans' pyridine structures are formed. Photoreactivity of heterobimetallic complexes towards molecular oxygen showed that, in spite of sensitivity of these complexes to molecular oxygens no singlet molecular oxygen, O2 (1[Delta]g), or peroxide species were generated as a result of irradiation with visible light. A series of acyclic ligands analogous to the dialdehyde ligand enalH 2, but containing different ligating groups instead of the aldehyde moieties were prepared. These include dial.
Download or read book CO2 Hydrogenation Catalysis written by Yuichiro Himeda and published by John Wiley & Sons. This book was released on 2021-06-28 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to the effective catalysts and latest advances in CO2 conversion in chemicals and fuels Carbon dioxide hydrogenation is one of the most promising and economic techniques to utilize CO2 emissions to produce value-added chemicals. With contributions from an international team of experts on the topic, CO2 Hydrogenation Catalysis offers a comprehensive review of the most recent developments in the catalytic hydrogenation of carbon dioxide to formic acid/formate, methanol, methane, and C2+ products. The book explores the electroreduction of carbon dioxide and contains an overview on hydrogen production from formic acid and methanol. With a practical review of the advances and challenges in future CO2 hydrogenation research, the book provides an important guide for researchers in academia and industry working in the field of catalysis, organometallic chemistry, green and sustainable chemistry, as well as energy conversion and storage. This important book: Offers a unique review of effective catalysts and the latest advances in CO2 conversion Explores how to utilize CO2 emissions to produce value-added chemicals and fuels such as methanol, olefins, gasoline, aromatics Includes the latest research in homogeneous and heterogeneous catalysis as well as electrocatalysis Highlights advances and challenges for future investigation Written for chemists, catalytic chemists, electrochemists, chemists in industry, and chemical engineers, CO2 Hydrogenation Catalysis offers a comprehensive resource to understanding how CO2 emissions can create value-added chemicals.
Download or read book Synthesis and Characterization of Cobalt Dioxygen Carriers Based on a Pentadentate Ligand Systems written by Mark William Gloglowski and published by . This book was released on 1988 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Synthesis and Characterization of Macrocyclic Ligands and Investigations of the Thermo and Photo Reactivity of Their Transition Metal Ion Complexes written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Cobalt Dioxygen Carriers Based on a Pentadentate Ligand System written by Mark William Glogowski and published by . This book was released on 1988 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Programs written by and published by . This book was released on 1976 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low spin Cobalt II Complexes with Macrocyclic Tetraaza Ligands written by Gerald Wayne Roberts and published by . This book was released on 1974 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coordination Chemistry of Macrocyclic Compounds written by Edwin C. Constable and published by . This book was released on 1999 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the coordination chemistry of macrocyclic ligands. Common types of ligands are introduced and strategies for the synthesis of the free ligands and their metal complexes are discussed. The unique thermodynamic and kinetic properties of macrocyclic complexes are introduced and applications of the ligands presented. The book is suitable for advanced undergraduate or graduate students and assumes a knowledge of organic and inorganic chemistry at the second year undergraduate level.
Download or read book Twin Polymerization written by Stefan Spange and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-11-05 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twin polymerization is a novel approach where two distinct polymers are produced from a single source monomer, thus being an excellent tool for the synthesis of hybrid materials. The author introduces the principles of various twin polymerization processes, their classification and practical use. The book is supplied with numerous individual examples, demonstrating the potential of this strategy in materials synthesis.
Download or read book Syntheses and Characterization of Macrocyclic Ligands Containing Nitrogen and Sulphur Donor Atoms written by Becky Chiu-Mei Chak and published by . This book was released on 1993 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal written by American Chemical Society and published by . This book was released on 2004 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis Characterization and Catalytic and Biological Activities of a Mixed ligand Cobalt ii Bipyridyl diphenylazodioxide Complex written by Kylin Alice Emhoff and published by . This book was released on 2021 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transition metal complexes have immense importance in the pharmaceutical industry. These types of complexes can be useful catalysts in the synthesis of medicinal compounds and can act as anticancer drugs. In these pharmaceutical applications, 1st-row transition metal-containing complexes offer certain advantages compared to their 2nd and 3rd-row transition metal counterparts. Our motivation was to investigate pharmaceutical applications of transition metal complexes containing both a 1st-row transition metal and unusual ligands to expand the knowledge of a class of complexes that could potentially be beneficial in the pharmaceutical industry. A class of rare ligands that piqued our interest was that of the diaryl azodioxides, cis-Ar(O)NN(O)Ar, which belong to the wider class of organic derivatives of nitric oxide (NO). Our synthesis and pharmaceutical applications of the azodioxide complex salt [Co(bpy){Ph(O)NN(O)Ph}2](PF6)2 have been able to significantly expand the knowledge of azodioxide complexes by displaying an unusual trigonal prismatic coordination geometry for cobalt(II) with only bidentate ligands, showing evidence of ligand-based redox activity, acting as an active catalyst in allylic amination/C0́2C double-bond transposition reactions, and selectively inducing apoptosis in SK-HEP-1 human liver adenocarcinoma cells. Importantly, catalytic and biological studies of [Co(bpy){Ph(O)NN(O)Ph}2](PF6)2 are ongoing, and focused on its potential for use in the pharmaceutical industry as a drug or catalyst for drug synthesis. Future work will involve comparing the catalytic and biological activities of [Co(bpy){Ph(O)NN(O)Ph}2](PF6)2 with other azodioxide complexes prepared by our group to identify structure-activity relationships and inform the design of more efficient catalysts and anti-cancer, pro-apoptotic agents.
Download or read book Synthesis Characterisation and Reactivity of Cobalt II and Cobalt I Cyclopentadienyl Diphosphine and diimine Complexes written by Claire Nicole Brodie and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1984 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interactions of Axial Ligands and Dioxygen with Cobalt II Macrocycle Complexes written by David Wayne Smith and published by . This book was released on 1980 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Cobalt II III phenothiazine Complexes written by Tun Aung and published by . This book was released on 1996 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
