Organometallisk kemi

This volume describes the latest advances and perspectives in hydrosilylation, with a focus on new organometallic catalysts and their mechanistic aspects. Hydrosilylation is the reaction of ¿SiH with carbon-carbon, carbon-heteroatom or heteroatom-heteroatom bonds and is the most fundamental and elegant method for laboratory and industrial synthesis of organosilicon molecular and macromolecular compounds. Yet these reactions do require a catalyst, for which initially homogeneous noble metal catalyst, mainly platinum, rhodium, iridium or ruthenium were used. However the high prices, metallic residues of these valuable catalysts as well as issues with product purification, did increase the interest in developing new catalysts. Noteworthy in this regard are the recently developed hydrosilylation reactions using catalysts based on earth-abundant transition metals (for example Mn, Fe, Co, Ni) and heterogeneous catalysts presented here. This volume of Topics in Organometallic Chemistry is written for scientists interested in silicon chemistry and its catalytic aspects, but can also be used as valuable handbook for postgraduate and advanced undergraduate students working with organometallic chemistry, catalysis as well as synthesis of fine chemicals.

This volume presents recent progress on 3d base metal catalyzed C-C cross coupling reactions. The contributions provide detailed discussions on the use of cheap metal catalysts such as Cr, Mn, Fe, Co, Ni, Cu, and Zn to construct Csp2-Csp2, Csp2-Csp3 and Csp3-Csp3 bonds with a variety of substrates. These non-noble metal catalyst have many advantages such as being inexpensive, having low toxicity and are environmentally benign. Therefore the use of cheap metal catalysts in organic synthesis has gained much attention in efforts to develop more sustainable synthetic green chemistry. Each chapter is written by international experts in the field and is a great resource for students, researchers and chemists working in industry to gain an overview on the latest developments.

This book presents recent advances in dinuclear complexes in which the metal-metal cooperative effect operates for obtaining substrate activation and high performance catalysts. Catalysis continues to be a fast expanding area to design efficient tools in synthesis and in industrial chemistry. It allows performing syntheses with short reaction times, atom economy, reduced consumption of energy and loss of reagents, and low level of wastes. Dinuclear complexes are known to be more efficient than the mononuclear analogues for the reaction rates and the selectivities. This book analyses the latest research, focusing on the key concepts, in building and using these dinuclear complexes. The book is aimed at researchers, graduate students and chemists at all levels in academia and industry.

This book presents experimental work conducted on the International Space Station (ISS) in order to characterize metals and alloys in the liquid state. The internationally recognized authors present and discuss experiments performed in microgravity that enabled the study of the relevant volume and surface related properties free of the restrictions of a gravity-based environment. The collection serves also as a handbook of space experiments using electromagnetic levitation techniques. A summary of recent results provides an overview of the wealth of space experiment data, which will ignite further research activities and inspire academics and industrial research departments for their continuous development. 

Seit Jahren ist dieses Lehrbuch ein absolutes Standardwerk zur Modernen Anorganischen Chemie. Auf hohem Niveau vermittelt es sehr verständlich fundiertes Wissen und weist geschickt auf die Zusammenhänge der verschiedenen Teilgebiete hin. Neu in der 6. Auflage: - Molekülchemie: Diradikale und Diradikaloide, NHC-stabilisierte Hauptgruppenelement-Verbindungenn Superbasen.- Festkörperchemie: poröse Materialien, Solarzellen, Ergänzungen zum Thema Fotokatalyse.- Komplex und Koordinationschemie: d-Orbitale in Hauptgruppen-Metall-Carbonyl-Komplexen, Metall-Komplexe als - Ausgangsverbindungen für Metall-haltige Nanopartikel.

Tracing the life of a giant in inorganic chemistry and key trends in his science, Boranes and Beyond follows Hawthorne from his mid-American origins to the halls of Harvard and UCLA and back again. It naturally details the accomplishments in his lab. This book is a fascinating mixture of science and autobiography. Prof. Hawthorne won the Priestley Medal, the highest award of the American Chemical Society, for his pioneering work in elucidating the chemistry of boron. He has chronicled in this book the developments in his lab which ultimately led to this achievement.Not content to rest on his laurels, after retiring from UCLA Prof. Hawthorne explored the use of boron in biomedicine and directed the International Institute of Nano & Molecular Medicine at the University of Missouri-Columbia.

A celebrated international bestseller that exposes the ticking time-bomb underneath our new technological order.The resources race is on. Powering our digital lives and green technologies are some of the Earth's most precious metals - but they are running out. And what will happen when they do? The green-tech revolution will reduce our reliance on nuclear power, coal, and oil, but by breaking free of fossil fuels, we are setting ourselves up for a new dependence - on rare metals like cobalt, gold, and palladium. These are essential to electric vehicles, wind turbines, and solar panels, as well as our smartphones, computers, tablets, and other technologies. But we know very little about how rare metals are mined and traded, or their environmental, economic, and geopolitical costs - until now.

Carbon-carbon and carbon-heteroatom bond-forming reactions are the backbone of synthetic organic chemistry. Scientists are constantly developing and improving these techniques in order to maximize the diversity of synthetically available molecules. These techniques must be developed in a sustainable manner in order to limit their environmental impact. This book highlights green bond forming reactions for bioactive scaffolds.