Synthesis of Heterometallic Zinc-Gold and Lanthanide-Transition Metal Carbonyl Complexes and Reactivity Study of Pentaphosphaferrocene Towards Low-Valent Main Group Species

Synthesis of Heterometallic Zinc-Gold and Lanthanide-Transition Metal Carbonyl Complexes and Reactivity Study of Pentaphosphaferrocene Towards Low-Valent Main Group Species
Author: Ravi Yadav
Publisher:
Total Pages: 170
Release: 2019-11-27
Genre:
ISBN: 9783736971233

The work reported in this thesis is divided into three parts. In the first part, the synthesis of Zn-Au heterometallic complexes is described by using bifunctional carboxy-phosphine ligands. The second part of this thesis focuses on redox reactions between divalent lanthanides (LnII) and transition metal (TM) carbonyl complexes for the synthesis of high nuclearity heterometallic complexes. The third and final part of this thesis focuses on reactivity studies of [Cp*Fe(Л5-P5)] with lowvalent main group compounds.

Carbon-Functional Organosilicon Compounds

Carbon-Functional Organosilicon Compounds
Author: Vaclav Chvalovsky
Publisher: Springer Science & Business Media
Total Pages: 315
Release: 2012-12-06
Genre: Science
ISBN: 1475703813

The term "carbon-functional organosilicon compound" is used for organosilicon compounds in which a functional group is bonded to an organic moiety that is in turn con nected to silicon via a Si-C bond. Thus, only Si-Cn-Y com pounds (Y designates a functional group) will be discussed in this book 1 Si-O-Cn-Y compounds will in general not be considered, although the latter group does include a large number of natural substances containing silylated hydroxyl groups. (Because of the differing importance of various Y groups, the reader will find some deviation from this restriction). Finally, compounds containing a silyl group as the functional group are not considered. An overview of the field of organosilicon chemistry would show that in the last several decades the commercial synthesis of organosilicon products has increased substan tially, both in annual production and also in the increasing variety of compounds produced. This increase in the number of commercially available carbon-functional monomers and polymers (silicone polymers) is most remarkable and is occurring because new applications are continually being found for these compounds. As might be expected, the number of publications in this field is also increasing. The important position of silicon in the periodic table - between carbon, aluminum, and phosphorus - means that an understanding of the nature of the bonds in organosilicon compounds is quite important in order to understand the bonding in these other areas.

Reactivity of Low-Valent Group 14 Species Toward Main Group Element, Transition Metal and Lanthanide Compounds

Reactivity of Low-Valent Group 14 Species Toward Main Group Element, Transition Metal and Lanthanide Compounds
Author: Xiaofei Sun
Publisher: Cuvillier Verlag
Total Pages: 259
Release: 2022-08-22
Genre: Science
ISBN: 3736966628

Die Dissertation befasst sich mit der Anwendung von niedervalenten Gruppe-14-Verbindungen in metallorganischer Chemie und Hauptgruppenchemie. Ausgehend von mono- und divalenten Siliziumverbindungen wurde die analoge Siliziumverbindung des 2π-Hückel-aromatischen Verbindung dargestellt (Kapitel 3.1). Ein chirales Silen wurde synthetisiert und weitere Reaktivität mit unterschiedlichen kleinen Molekülen untersucht (Kapitel 3.2). Außerdem wurden bidentate Silylene als Liganden zur Stabilisierung von Seldenerdelementen, Erdalkalielementen und Gruppe-12-Metallen eingesetzt (Kapitel 3.3-3.4). Verschiedene Polyphosphide wurden aus reduzierenden Silylenen oder Plumbolen generiert (Kapitel 3.5-3.6). Die dianionischen Gruppe-14-Metallole, Silol, Germol und Plumbol wurden als Liganden für sandwichartige Lanthanidkomplexe eingesetzt und die magnetischen Eigenschaften der Er-Verbindung wurden untersucht (Kapitel 3.7-3.8).

Mössbauer Spectroscopy Applied to Inorganic Chemistry

Mössbauer Spectroscopy Applied to Inorganic Chemistry
Author: G.J Long
Publisher: Springer Science & Business Media
Total Pages: 652
Release: 2013-11-11
Genre: Science
ISBN: 148992289X

In 1988 the Mossbauer effect community completed 30 years of continual contribution to the fields of nuclear physics, solid state science, and a variety of related disciplines. To celebrate this anniversary, Professor Gonser of the Universitat des Saarlandes has contributed a chapter to this volume on the history of the effect. Although Mossbauer spectroscopy has reached its mature years, the chapters in this volume illustrate that it is still a dynamic field of science with applications to topics ranging from permanent magnets to biologi cal mineralization. During the discussion of a possible chapter for this volume, a potential author asked, "Do we really need another Mossbauer book?" The editors responded in the affirmative because they believe that a volume of this type offers several advantages. First, it provides the author with an opportunity to write a personal view of the subject, either with or without extensive pedagogic content. Second, there is no artificially imposed restriction on length. In response to the question, "How long should my chapter be?," we have responded that it should be as long as is necessary to clearly present, explain, and evaluate the topic. In this type of book, it is not necessary to condense the topic into two, four, or eight pages as is now so often a requirement for publication in the research literature.

Advances in Transition-Metal Mediated Heterocyclic Synthesis

Advances in Transition-Metal Mediated Heterocyclic Synthesis
Author: Daniel Sole
Publisher: Academic Press
Total Pages: 368
Release: 2018-05-17
Genre: Science
ISBN: 0128116528

Advances in Transition-Metal Mediated Heterocyclic Synthesis provides an overview of recent catalytic reactions involving transition metals to produce heterocyclic compounds. The book is organized according to the type of transformation used to achieve the synthesis of the heterocyclic systems (mainly aza- and oxa-heterocycles). As such, it covers recent applications on the synthesis of heterocycles, also describing the details of the novel transformations in a didactic manner to motivate readers in search of new catalytic processes. The editors have included state-of-the-art strategies, including transition-metal reactions involving unsaturated systems (reactions of allenes, new gold(I)-catalyzed reactions, and Prins reaction). Chapters highlight the versatility of organopalladium chemistry dealing with carbonylative transformations, C-H activation reactions, coupling processes, and the control of the ambiphilic character of organopalladium species. Finally, the book discusses new reactions leading to heterocycles based on C-H activation processes catalyzed by other metals (Rh, Ru, Co). Written by an outstanding team of authors who are leading experts in organometallic chemistry and organic synthesis, this book is a valuable resource not only for chemists mainly focused on synthesis, but also for those interested in reaction mechanisms involving transition metals. - Helpfully organized by transformation type to stimulate the search for new synthetic processes - Completely illustrated and written by global experts - Includes thoughtfully selected strategies chosen by the editors to exemplify the state-of-the-art of the subject, including transition-metal reactions involving unsaturated systems, organopalladium chemistry, and metal-catalyzed C-H activation

Zinc Catalysis

Zinc Catalysis
Author: Stephan Enthaler
Publisher: John Wiley & Sons
Total Pages: 328
Release: 2015-02-17
Genre: Technology & Engineering
ISBN: 3527675973

Filling the gap in the market for comprehensive coverage of this hot topic, this timely book covers a wide range of organic transformations, e. g. reductions of unsaturated compounds, oxidation reactions, Friedel-Crafts reactions, hydroamination reactions, depolymerizations, transformations of carbon dioxide, oxidative coupling reactions, as well as C-C, C-N, and C-O bond formation reactions. A chapter on the application of zinc catalysts in total synthesis is also included. With its aim of stimulating further research and discussion in the field, this is a valuable reference for professionals in academia and industry wishing to learn about the latest developments.

Modern Gold Catalyzed Synthesis

Modern Gold Catalyzed Synthesis
Author: A. Stephen K. Hashmi
Publisher: John Wiley & Sons
Total Pages: 419
Release: 2012-05-21
Genre: Science
ISBN: 3527319522

With its impressive features, gold has led to completely new reaction types in recent years, which in turn have strongly influenced both organic catalysis and material science. Other fields where a significant amount of new results has been obtained include nanotechnology, self assembly/supramolecular systems and biochemical/medicinal chemistry. As a result, gold is one of the hottest topics in catalysis at the moment, with an increasing amount of research being carried out in this field. While focusing on homogeneous catalysis, this monograph also covers the main applications in heterogeneous catalysis. Following a look at the gold-catalyzed addition of heteroatom nucleophiles to alkynes, it goes on to discuss gold-catalyzed additions to allenes and alkenes, gold-catalyzed benzannulations, cycloisomerization and rearrangement reactions, as well as oxidation and reduction reactions. The whole is finished off with a section on gold-catalyzed aldol and related reactions and the application of gold-catalyzed reactions to natural product synthesis. Of interest to synthetic chemists and inorganic chemists, as well as organic chemists working in homogeneous catalysis, physical and technical chemists.

Earth-Abundant Transition Metal Catalyzed Reactions

Earth-Abundant Transition Metal Catalyzed Reactions
Author:
Publisher: Elsevier
Total Pages: 268
Release: 2024-09-18
Genre: Science
ISBN: 0443140030

Earth-Abundant Transition Metal Catalyzed Reactions, Volume 74 in the Advances in Catalysis series, highlights new advances in the field, with this new volume presenting interesting chapters. Each chapter is written by an international board of authors. Chapters in this new release include in Chiral Iron Complexes for Asymmetric Catalysis, Recent advances in Ni-catalyzed Functionalization of Strong C-O and C-H Bonds, Low-valent Molecular Cobalt Complexes for Reductive Chemistry, Iron-catalyzed group-transfer reactions with hypervalent iodine reagents, and Iron Porphyrins for Mediating Atom Efficient C-C Bond Formations.