31P and 13C NMR of Transition Metal Phosphine Complexes PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download 31P and 13C NMR of Transition Metal Phosphine Complexes PDF full book. Access full book title 31P and 13C NMR of Transition Metal Phosphine Complexes by Paul S. Pregosin. Download full books in PDF and EPUB format.
Author: Paul S. Pregosin Publisher: Springer Science & Business Media ISBN: 3642488307 Category : Science Languages : en Pages : 164
Book Description
For almost a quarter of a century the words "nuclear magnetic reso nance" were synonymous with proton I,leasurements. During this period the literature abounded with a seemingly infinite variety of 1H NHR studies concerned primarily with carbon chemistry. Occasionally a "novel" nucleus was studied and, even in those early days, the poten- 13 14 31 19 tial offered by C, N, P and F was clearly recognized. Despite the allure, the technical difficulties involved in measuring some of these nuclei were far from trivial. Small magnetic moments and low natural abundance in combination with spin-spin coupling from other nuclei, mostly protons, resulted in a signal-to-noise problem whose severity effectively excluded the study of metal complexes with unfa vorable solubility characteristics. The first important breakthrough came with the advent of broad band 1H-decoupling. For example, the featureless broad 31p resonance associated with the commonly used ligand triphenyl phosphine is converted to a sharp, more readily ob served singlet when wide-band decoupling is employed (see Fig. 1). Despite this improvement investigation of more interesting molecules, such as catalytically active complexes was forced to await the devel opment of Fourier Transform methods since only with relatively rapid signal averaging methods could sufficient signal-to-noise ratios be achieved.
Author: Paul S. Pregosin Publisher: Springer Science & Business Media ISBN: 3642488307 Category : Science Languages : en Pages : 164
Book Description
For almost a quarter of a century the words "nuclear magnetic reso nance" were synonymous with proton I,leasurements. During this period the literature abounded with a seemingly infinite variety of 1H NHR studies concerned primarily with carbon chemistry. Occasionally a "novel" nucleus was studied and, even in those early days, the poten- 13 14 31 19 tial offered by C, N, P and F was clearly recognized. Despite the allure, the technical difficulties involved in measuring some of these nuclei were far from trivial. Small magnetic moments and low natural abundance in combination with spin-spin coupling from other nuclei, mostly protons, resulted in a signal-to-noise problem whose severity effectively excluded the study of metal complexes with unfa vorable solubility characteristics. The first important breakthrough came with the advent of broad band 1H-decoupling. For example, the featureless broad 31p resonance associated with the commonly used ligand triphenyl phosphine is converted to a sharp, more readily ob served singlet when wide-band decoupling is employed (see Fig. 1). Despite this improvement investigation of more interesting molecules, such as catalytically active complexes was forced to await the devel opment of Fourier Transform methods since only with relatively rapid signal averaging methods could sufficient signal-to-noise ratios be achieved.
Author: Chandraleka Saravanan Publisher: BoD – Books on Demand ISBN: 1789231825 Category : Science Languages : en Pages : 122
Book Description
The book Ligand describes the diversity and versatility of ligands, covering structural features, donor-acceptor properties and secondary functions like molecular recognition. Moreover, this book also provides a comprehensive account on the applicability like catalysis, sensors, supramolecular assembly, photochemical property, bioinorganic chemistry, and so on. The advancement of fundamentals in ligand design and the control of physicochemical properties of coordination compounds has largely increased emphasis on understanding the structural and electronic features toward different perspectives in materials science. In this regard, this book has a special appeal to chemists, biologists and others. This book will be beneficial for the graduate students, teachers, researchers and other professionals who are interested to fortify and expand their knowledge in chemistry, biology, microbiology, biotechnology, materials science, environmental science and so on.
Author: David W Allen Publisher: Royal Society of Chemistry ISBN: 1788018648 Category : Science Languages : en Pages : 410
Book Description
This annual review of the literature presents a comprehensive and critical survey of the vast field of study involving organophosphorus compounds, from phosphines and related P-C bonded compounds to phosphorus acids, phosphine chalcogenides and nucleotides. The Editors have added to the content with a timely chapter on the recent developments in green synthetic approaches in organophosphorus chemistry to reflect current interests in the area. With an emphasis on interdisciplinary content, this book is aimed at the worldwide organic chemistry and engineering research communities.
Author: Herbert W Roesky Publisher: Academic Press ISBN: 0128035684 Category : Science Languages : en Pages : 540
Book Description
Efficient Methods for Preparing Silicon Compounds is a unique and valuable handbook for chemists and students involved in advanced studies of preparative chemistry in academia and industry. Organized by the various coordination numbers (from two to six) of the central silicon atom of the reported compounds, this book provides researchers with a handy and immediate reference for any compound or properties needed in the area. Edited by a renowned expert in the field, each chapter explores a different type of compound, thoroughly illustrated with useful schemes and supplemented by additional references. Knowledgeable contributors report on a broad range of compounds on which they have published and which are already used on a broad scale or have the potential to be used in the very near future to develop a new field of research or application in silicon chemistry. - Includes contributions and edits from leading experts in the field - Includes detailed chemical schemes and useful references for each preparative method - Organized by the coordination numbers of the central silicon atom for each compound for easy navigation - Serves as a go-to primer for researchers in novel compositions of silicon matter
Author: Publisher: Academic Press ISBN: 0080580394 Category : Science Languages : en Pages : 269
Book Description
This widely acclaimed serial contains authoritative reviews that address all aspects of organometallic chemistry, a field which has expanded enormously since the publication of Volume 1 in 1964. Almost all branchesof chemistry now interface with organometallic chemistry--the study of compounds containing carbon-metal bonds. Organometallic compounds range from species which are so reactive that they only have a transient existence at ambient temperatures to species which are thermally very stable. Organometallics are used extensively in the synthesis of useful compounds on both large and small scales. Industrial processes involving plastics, polymers, electronic materials, and pharmaceuticals all depend on advancements in organometallic chemistry.In basic research, organometallics have contributed inter alia to: - Metal cluster chemistry - Surface chemistry - The stabilization of highly reactive species by metal coordination - Chiral synthesis - The formulation of multiple bonds between carbon and the other elements and between the elements themselves
Author: Walter Kaminsky Publisher: Wiley-VCH ISBN: 9783527317424 Category : Technology & Engineering Languages : en Pages : 0
Book Description
With an enormous velocity, olefin polymerization has expanded to one of the most significant fields in polymers since the first industrial use about 50 years ago. In 2005, 100 million tons of polyolefins were produced - the biggest part was catalyzed by metallorganic compounds. The Hamburg Macromolecular Symposium 2005 with the title "Olefin Polymerization" involved topics such as new catalysts and cocatalysts, kinetics, mechanism and polymer reaction engineering, synthesis of special polymers, and characterization of polyolefins. The conference combined scientists from different disciplines to discuss latest research results of polymers and to offer each other the possibility of cooperation. This is reflected in this volume, which contains invited lectures and selected posters presented at the symposium.
Author: A. P. Hagen Publisher: John Wiley & Sons ISBN: 0470145552 Category : Science Languages : en Pages : 825
Book Description
Here is the comprehensive two-volume index to all of the compounds, subjects, and authors featured in the eighteen-volume Inorganic Reactions and Methods series. Already deemed "invaluable" by the Journal of Organometallic Chemistry, the series becomes even more essential with the publication of these user-friendly, quick-reference companion indexes.
Author: David Morales-Morales Publisher: Elsevier ISBN: 0128129328 Category : Science Languages : en Pages : 756
Book Description
Pincer Compounds: Chemistry and Applications offers valuable state-of-the-art coverage highlighting highly active areas of research—from mechanistic work to synthesis and characterization. The book focuses on small molecule activation chemistry (particularly H2 and hydrogenation), earth abundant metals (such as Fe), actinides, carbene-pincers, chiral catalysis, and alternative solvent usage. The book covers the current state of the field, featuring chapters from renowned contributors, covering four continents and ranging from still-active pioneers to new names emerging as creative strong contributors to this fascinating and promising area. Over a decade since the publication of Morales-Morales and Jensen's The Chemistry of Pincer Compounds (Elsevier 2007), research in this unique area has flourished, finding a plethora of applications in almost every single branch of chemistry—from their traditional application as very robust and active catalysts all the way to potential biological and pharmaceutical applications. - Describes the chemistry and applications of this important class of organometallic and coordination compounds - Includes contributions from global leaders in the field, featuring pioneers in the area as well as emerging experts conducting exciting research on pincer complexes - Highlights areas of promising and active research, including small molecule activation, earth abundant metals, and actinide chemistry
Author: Paul S. Pregosin
Author: Paul S. Pregosin
Author: Chandraleka Saravanan
Author: David W Allen
Author: Herbert W Roesky
Author: 
Author: Paul S. Coan
Author: Walter Kaminsky
Author: Alan R. Katritzky
Author: A. P. Hagen
Author: David Morales-Morales