Cobalt Complexes of Some Sulfur-containing Ligands PDF Download
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Author: Bailie Jack McCormick
Publisher:
ISBN:
Category :
Languages : en
Pages : 152
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Book Description
Author: Bailie Jack McCormick
Publisher:
ISBN:
Category :
Languages : en
Pages : 152
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Author: Roger A. Goddard
Publisher:
ISBN:
Category : Chemistry, Inorganic
Languages : en
Pages : 486
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Author: Thomas Andrew Jackman
Publisher:
ISBN:
Category : Cobalt
Languages : en
Pages : 304
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Author: S. Y. Lee
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Tatiana Straistari
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
This work focuses on the synthesis, the characterization and the catalytic evaluation in the reduction of protons into dihydrogen, of new complexes of Ni(II), Co(III), Cu(II) and Pd(II) based ligands Type thiosemicarbazone. The catalytically active species during the process of the proton reduction was studied by cyclic voltammetry and mechanisms were formulated on the basis quantum chemical calculation.The first chapter introduces the scientific context, the goals and the main objectives of this work. The second chapter concerns the synthesis and the characterization of the N2S2 ligands and their associated mononuclear complexes, Ni, Cu and Pd. The third chapter presents the synthesis and the characterization of binuclear Co and trinuclear Ni based on N2S2 ligand.Electrochemical studies of these complexes in DMF in the presence of a proton source (trifluoroacetic acid), allowed us to evaluate their catalytic efficiency. Our results show that Cu and Pd complexes have a specific irreversible wave for the reduction of protons, but decomposition is observed during electrolysis, which makes these uninteresting complexes for the reduction of protons.On the contrary, Ni and Co complexes showed an electrochemical stability and good catalytic performances. In particular, the new mononuclear Ni complex exhibits remarkable catalytic properties that rank it among the best catalysts for the reduction of protons reported in the literature. All this work provided a complete description of the electrochemical behavior of N2S2 thiosemicarbazone ligands complexed to transition metals. It allows considering future developments in improving the catalytic properties of these complexes.
Author: James Lowell Peterson
Publisher:
ISBN:
Category : Complex compounds
Languages : en
Pages : 80
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Author: Mary Diane Payne
Publisher:
ISBN:
Category : Organocobalt compounds
Languages : en
Pages : 138
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Author: C.K. Jorgensen
Publisher: Elsevier
ISBN: 0323159699
Category : Science
Languages : en
Pages : 229
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Inorganic Complexes describes the particular features of inorganic complex chemistry, as it has developed since 1950. The chemical information recorded in this book is intimately connected with the theoretical approach applying M.O. theory, which is also called ligand field theory in the special case of transition group complexes with a partly filled shell, for classification of the energy levels and rationalization of the absorption spectra. This text also discusses the aqua, hydroxo, oxo, fluoro, chloro, bromo, and iodo complexes; nitrogen-, oxygen-, and sulfur-containing ligands; amino acids and other N,O-containing ligands; and intermetallic bonding and co-operative effects. This publication is a good source for chemists and students conducting work on inorganic complex chemistry.
Author: Mark R. McClure
Publisher:
ISBN:
Category : Cobalt
Languages : en
Pages : 320
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Author: P.S. Braterman
Publisher: Springer Science & Business Media
ISBN: 1461307554
Category : Science
Languages : en
Pages : 419
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Book Description
This, the second and final volume of Reactions of Coordinated Ligands, describes the chemistry of ligands bound through non-carbon atoms, and of coordinated carbon dioxide. As before, emphasis is on the underlying mechanisms, which provide a unity of understanding for superficially disparate processes. The wide range of topics covered illustrates well both the versatility and the usefulness of coordination chemistry in the controlled activation of ligands. Looking to the future, carbon dioxide is the feedstock of last resort. The homogeneous reduction of dinitrogen to ammonia now seems unlikely to replace the Haber process, but solution reactions also lead to more complex, varied, and valuable products. Nitrogen monoxide, a "non innocent" ligand, impinges as pollutant and reagent. Its rich chemistry stems from its linked roles as three-electron donor, and as extremely powerful -acceptor. In the hydrolysis and condensation of complexed amides, esters etc. , metals act both as templates and as tunable and poly functional Lewis acids. Here the control of hydrophobic and steric interactions begins to model the subtle mechanisms of biological specificity. Finally, phosphorus and sulfur are imporant both as ligand atoms in themselves, and as anchors for other functionalities. I would like to thank all those who have been involved in the writing and production of this work, and also my colleagues old and new, at Glasgow and the University of North Texas, for their support. Paul S. Braterman v CONTENTS 1. Reactions of Coordinated Carbon Dioxide 1 J. D. Miller 1.
