Siegmar Braun – författare
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3 produkter
3 produkter
Inbunden, Engelska, 1988
16 130 kr
Skickas inom 5-8 vardagar
A comprehensive treatment of carbon-13 NMR spectroscopy, one of the most important methods for the elucidation of the structure of organic molecules. Thoroughly describes all aspects of the experimental method and the pulse Fourier transform technique, as well as the structure dependence of the ?13C-NMR parameters chemical shift, coupling constant, and relaxation. Examines the different classes of organic compounds, including organometallics, and provides a section on coupling constants organized according to the number and kind of intervening bonds. Dynamic phenomena, the application of LSR, and the determination of reaction mechanisms by ?13C-NMR are treated as well.
Inbunden, Engelska, 1997
12 089 kr
Skickas inom 5-8 vardagar
NMR Spectroscopy of the Non-Metallic Elements Stefan Berger Philipps-Universität, Marburg, Germany Siegmar Braun Technische Hochschule Darmstadt, Germany Hans-Otto Kalinowski Justus-Liebig-Universität, Gießen, Germany In recent years, the technique of Nuclear Magnetic Resonance (NMR) Spectroscopy has rapidly gained in importance outside its traditional areas of proton NMR and carbon-13 NMR. In particular, it has become much more applicable to compounds containing elements such as phosphorus, nitrogen and fluorine. NMR Spectroscopy of the Non-Metallic Elements gathers together a wealth of NMR data for the most important non-metallic elements, namely nitrogen, oxygen, fluorine, phosphorus, sulphur and xenon. For each element, the data for the simpler compounds and their derivatives (both organic and inorganic) are gathered together in as complete a form as possible, and the regularities that emerge are discussed in detail in relation to structural variations. This allows the reader to interpret the structure of more complex structures. The chapters containing the NMR data for the elements are preceded by a practical introduction to the basic theory and experimental techniques of the NMR parameters, especially the chemical shift and indirect spin-spin coupling. This material will help the reader both in finding practical solutions to problems of structure determination, and in critically evaluating the spectra obtained. NMR Spectroscopy of the Non-Metallic Elements is an invaluable reference source for all laboratories where NMR is used. It will also be widely used by organic and inorganic chemists, especially those working on nitrogen, fluorine and phosphorus compounds.
Häftad, Engelska, 2004
1 111 kr
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This work-book will guide you safely, in step-by-step descriptions, through every detail of the NMR experiments within, beginning with 1D routine experiments and ending with a series of advanced 3D experiments on a protein: ? Which experiment can best yield the desired information?? How must the chosen experiment be performed?? How does one read the required information from the spectrum?? How does this particular pulse sequence work?? Which other experiments give similar information? This third edition of the book, following its two highly successful predecessors, has been revised and expanded to 206 experiments. They are organized in 15 chapters, covering test procedures and routine spectra, variable temperature measurements, the use of auxiliary reagents, 1D multipulse experiments, spectra of heteronuclides, and the application of selective pulses. The second and third dimensions are introduced using pulsed field gradients, and experiments on solid state materials are described. A key part describes 3D experiments on the protein ubiquitin with 76 amino acids. What is new in this third edition? 1. 24 new experiments have been inserted into the 14 chapters that were in the 2nd edition, e.g., alpha/beta-SELINCOR-TOCSY, WET, DOSY, ct-COSY, HMSC, HSQC with adiabatic pulses, HETLOC. J-resolved HMBC, (1,1)- and (1,n)-ADEQUATE, STD, REDOR, and HR-MAS.2. 20 new protein NMR experiments have been specially devised and are collected in the newly added Chapter 15, ProteinNMR, for which one needs a special model sample: fully 13C- and 15N-labeled human ubiquitin. Techniques used include the constant time principle, the PEP method, filters, gradient selection, and the echo/anti-echo procedure. The guide has been written by experts in this field, following the principle of learning by doing: all the experiments have been specially performed for this book, exactly as described and shown in the spectra that are reproduced. Being a reference source and work-book for the NMR laboratory as well as a textbook, it is a must for every scientist working with NMR, as well as for students preparing for their laboratory courses