Synthesis, Characterization, and Catalytic Studies of Molybdenum Thiolate Complexes and Copper Complexes with Substituted NS2-macrocyclic Ligands PDF Download
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Author: Antony Alex Tipton
Publisher:
ISBN:
Category : Catalysts
Languages : en
Pages : 184
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Author: Antony Alex Tipton
Publisher:
ISBN:
Category : Catalysts
Languages : en
Pages : 184
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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 782
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Author:
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ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 848
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Author: Mauricio Quiroz-Guzmán
Publisher:
ISBN:
Category : Molybdenum
Languages : en
Pages :
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The chemistry of molybdenum is immensely rich and diverse. Molybdenum is essential for life, and has many applications in industry. The first chapter offers a general perspective of the chemistry of molybdenum in high oxidation states dominated by diverse oxo species, such as the MoO22+ and MoO4+ units that are focus of my research. I describe the importance of MoO22+ complexes as models for the active sites of oxo transfer molybdoenzymes (e.g. DMSO oxidase) and for industrial heterogeneous transformation such as the SOHIO process (one of our ultimate goals). I also outline the importance of MoO4+ complexes as procatalysts for metathesis polymerization and as models of deoxygenated active sites of MoO22+ oxygen catalysts that have triggered our interest. The second chapter introduces the synthesis and full characterization of 4-, 5- and 6-coordinated MoO2(OAr)2L0-1 complexes with bulky aryloxide ligands, starting from the MoO2Cl2 or MoO2Cl2(DMF)2 precursors. Steric and electronic modifications in the aryloxide moieties were performed in order to understand their effect in the final structure and yields of the synthesized complexes. The nature and mechanism of formation of the radical species detected in their synthesis is proposed. The third chapter presents the facile synthesis of varios MoO(OAr)4-nCln complexes starting from the MoO2Cl2 precursor. Their mechanism of formation is proposed and the supporting evidence for this new reaction is provided. Steric and electronic modifications in the aryloxide moieties were used to study their structural and electronic effects in the MoO4+ complexes. The fourth chapter outlines the synthesis of Mo(VI) monooxo bisphenoxides with a characteristic cis-chloro cis-bisphoxide arrangement around the MoO4+ unit. Electronic and steric modifications in the bisphenoxide rings were done to determine their effect in the structure and reactivity of the final complexes. The fifth chapter introduces the application of the synthesized MoO(OAr)4-nCln and MoO(bisphenoxides)2Cl2 complexes as procatalysts for olefin metathesis polymerization of norbornene. The correlation between structure and reactivity of the procatalyst is discussed.
Author: Paul O. Oguadinma
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Ananya Srivastava
Publisher: Elsevier
ISBN: 012821547X
Category : Science
Languages : en
Pages : 506
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Book Description
Copper in N-Heterocyclic Chemistry provides an overview of copper-catalyzed synthesis and functionalization of N-heterocyclic compounds, covering all recent developments in a way that is ideal for researchers and students working in the area of synthetic organic chemistry and medicinal chemistry. The book explores N-heterocyclic compounds as unique structural units in the development of natural products and pharmaceuticals, along with the remarkable progress made in the area of high atom economic strategies, and more recently, copper-catalyzed C-H activation and its applications in organic synthesis. Readers will find troubleshooting protocols, as well as the advantages and limitations of each method discussed. As copper catalysts show versatile chemical reactivity in many aspects, including their oxidation states 0–3 are accessible and their ability to facilitate bond formations due to their ability to serve as Lewis acids, oxidizing agents and catalysts, this book is an ideal resource on the topics explored. - Discusses novel synthetic methods developed over the past decade for copper-catalyzed synthesis of N-heterocyclic compounds - Covers the most recent methodologies adapted in synthetic chemistry for applications in natural products and pharmaceuticals - Includes troubleshooting protocols, as well as the advantages and limitations of each method discussed in detail
Author: Rayees Sheikh
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659146572
Category :
Languages : en
Pages : 156
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This book presents the important facts about the synthesis and biological studies of macrocyclic transition metal complexes. A detailed synthetic discussion of the reaction steps in each mechanism and their relationship with transition metal complexes has been considered. Macrocyclic ligands and their transition metal complexes depends upon the nature of reactants and the corresponding metal ion. The macrocyclic ligand are a growing class of compounds with varying chemistry a wide range of different molecular topologies and set of donor atoms. Aza type ligands appear as very promising to be used as antifertile, antibacterial, antifungal and other biological properties. Macrocyclic metal complexes play a central role in the construction of molecular materials, which display magnetic properties and find applications in material and supramolecular chemistry and biochemistry. It is believed that the present book will provide a succinct and clear introduction to synthesis, characterization and biological studies macrocyclic ligands with transition metal complexes that meets the needs of researchers at a variety of levels in several disciplines.
Author: Lisa M. Throop
Publisher:
ISBN:
Category : Molybdenum compounds
Languages : en
Pages : 80
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Author: Robert Paul Houser
Publisher:
ISBN:
Category :
Languages : en
Pages : 408
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Author: Susan Marie Carrier
Publisher:
ISBN:
Category :
Languages : en
Pages : 336
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