Structure Elucidation By Nmr In Organic Chemistry

Author : Eberhard Breitmaier
Publisher : John Wiley & Sons
Page : 279 pages
File Size : 43,5 Mb
Release : 2002-11-22
Category : Science
ISBN : 9780470850077

Get Book

Structure Elucidation by NMR in Organic Chemistry by Eberhard Breitmaier Pdf

This text provides the graduate student with a systematic guide to unravelling structural information from the NMR spectra of unknown synthetic and natural compounds. A brief introduction gives an overview of the basic principles and elementary instrumental methods of NMR. This is followed by instructional strategy and tactical advice on how to translate spectra into meaningful structural information. The book provides the student with 55 sets of spectra of graduated complexity. These are designed to challenge the student's problem-solving abilities by the introduction of new concepts with each group of problems, followed by possible solutions and full explanations. A formula index of solutions is provided at the end of the text. This third edition, following on from the second (a reprint of the first edition with corrections), presents significant new material. Thus, actual methods of two-dimensional NMR such as some inverse techniques of heteronuclear shift correlation, as well as the detection of proton-proton connectivities and nuclear Overhauser effects are included. To demonstrate the applications of these methods, new problems have replaced those of previous editions.

Author : Eberhard Breitmaier
Publisher : Unknown
Page : 280 pages
File Size : 43,9 Mb
Release : 2002-10-25
Category : Science
ISBN : UOM:39015056252250

Get Book

Structure Elucidation by NMR in Organic Chemistry by Eberhard Breitmaier Pdf

This text provides the graduate student with a systematic guide to unravelling structural information from the NMR spectra of unknown synthetic and natural compounds. A brief introduction gives an overview of the basic principles and elementary instrumental methods of NMR. This is followed by instructional strategy and tactical advice on how to translate spectra into meaningful structural information. The book provides the student with 55 sets of spectra of graduated complexity. These are designed to challenge the student's problem-solving abilities by the introduction of new concepts with each group of problems, followed by possible solutions and full explanations. A formula index of solutions is provided at the end of the text. This third edition, following on from the second (a reprint of the first edition with corrections), presents significant new material. Thus, actual methods of two-dimensional NMR such as some inverse techniques of heteronuclear shift correlation, as well as the detection of proton-proton connectivities and nuclear Overhauser effects are included. To demonstrate the applications of these methods, new problems have replaced those of previous editions.

Author : E. Breitmaier
Publisher : Unknown
Page : 265 pages
File Size : 50,6 Mb
Release : 1993
Category : Nuclear magnetic resonance spectroscopy
ISBN : OCLC:754873340

Get Book

Structure Elucidation by NMR in Organic Chemistry by E. Breitmaier Pdf

Author : Darcy C Burns,William F Reynolds
Publisher : Royal Society of Chemistry
Page : 254 pages
File Size : 52,9 Mb
Release : 2018-09-26
Category : Science
ISBN : 9781788015356

Get Book

Optimizing NMR Methods for Structure Elucidation by Darcy C Burns,William F Reynolds Pdf

This book is aimed at informing organic chemists and natural products chemists on the use of NMR for structure elucidation to enable them to ensure they yield the most reliable possible data in the minimum possible time. It covers the latest pulse sequences, acquisition and processing methods, practical areas not covered in most texts e.g. detailed consideration of the relative advantages and disadvantages of different pulse sequences, choosing acquisition and processing parameters to get the best possible data in the least possible time, pitfalls to avoid and how to minimize the risks of getting wrong structures. Useful in industrial, pharma or research environments, this reference book is for anyone involved with organic chemistry research and, in particular, natural products research requiring advice for getting the best results from the NMR facilities.

Author : Maria-Magdalena Cid,Jorge Bravo
Publisher : John Wiley & Sons
Page : 552 pages
File Size : 42,6 Mb
Release : 2015-01-05
Category : Science
ISBN : 9783527664634

Get Book

Structure Elucidation in Organic Chemistry by Maria-Magdalena Cid,Jorge Bravo Pdf

Intended for advanced readers, this is a review of all relevant techniques for structure analysis in one handy volume. As such, it provides the latest knowledge on spectroscopic and related techniques for chemical structure analysis, such as NMR, optical spectroscopy, mass spectrometry and X-ray crystallography, including the scope and limitation of each method. As a result, readers not only become acquainted with the techniques, but also the advantages of the synergy between them. This enables them to choose the correct analytical method for each problem, saving both time and resources. Special emphasis is placed on NMR and its application to absolute configuration determination and the analysis of molecular interactions. Adopting a practical point of view, the author team from academia and industry guarantees both solid methodology and applications essential for structure determination, equipping experts as well as newcomers with the tools to solve any structural problem.

Author : Ernö Pretsch,T. Clerc,J. Seibl,W. Simon
Publisher : Springer Science & Business Media
Page : 325 pages
File Size : 55,8 Mb
Release : 2013-06-29
Category : Science
ISBN : 9783662224557

Get Book

Tables of Spectral Data for Structure Determination of Organic Compounds by Ernö Pretsch,T. Clerc,J. Seibl,W. Simon Pdf

Although numerical data are, in principle, universal, the compilations presented in this book are extensively annotated and interleaved with text. This translation of the second German edition has been prepared to facilitate the use of this work, with all its valuable detail, by the large community of English-speaking scientists. Translation has also provided an opportunity to correct and revise the text, and to update the nomenclature. Fortunately, spectroscopic data and their relationship with structure do not change much with time so one can predict that this book will, for a long period of time, continue to be very useful to organic chemists involved in the identification of organic compounds or the elucidation of their structure. Klaus Biemann Cambridge, MA, April 1983 Preface to the First German Edition Making use of the information provided by various spectroscopic tech niques has become a matter of routine for the analytically oriented organic chemist. Those who have graduated recently received extensive training in these techniques as part of the curriculum while their older colleagues learned to use these methods by necessity. One can, therefore, assume that chemists are well versed in the proper choice of the methods suitable for the solution of a particular problem and to translate the experimental data into structural information.

Author : Helmut Duddeck,Wolfgang Dietrich,Gabor Toth
Publisher : Springer Science & Business Media
Page : 214 pages
File Size : 53,6 Mb
Release : 2013-04-18
Category : Science
ISBN : 9783642883101

Get Book

Structure Elucidation by Modern NMR by Helmut Duddeck,Wolfgang Dietrich,Gabor Toth Pdf

During the last few years, routine applications of NMR (Nuclear Magnetic Resonance) techniques have developed at a tremendous pace. The latest generation of spectrometers have enabled chemists to perform new types of experiments, such as spinlock and inverse-detected methods. This third, revised and expanded edition introduces the latest methodologies and incorporates them into new exercises.

Author : Helmut Duddeck,Wolfgang Dietrich
Publisher : Springer Science & Business Media
Page : 273 pages
File Size : 54,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642977879

Get Book

Structure Elucidation by Modern NMR by Helmut Duddeck,Wolfgang Dietrich Pdf

For several years, we have been organizing seminars and workshops on the application of modem one and two-dimensional NMR methods at the faculty of chemistry in the Ruhr-University Bochum, FRG, and elsewhere, addressing researchers and graduate students who work in the field of organic and natural products chemistry. In 1987, we wrote a workbook (StrukturaufkUirung mit modemer NMR-Spektroskopie, Steinkopff, Darmstadt, FRG, 1988) in German language based on our experience in these courses. Many of the exercises described therein have been used in such courses and some of them have been shaped by the participants to a great extent. The response of readers and discussions with colleagues from many countries encouraged us two years later to produce an English translation in order to make the book accessible to a wider audience. Moreover, the content has been increased from 20 exercise examples in the German, to 23 in English version. Now, after the rapid development of basic multipulse NMR me thods in the early 1980s, the avantgarde in modem NMR is concentrating on the invention and optimi zation of advanced techniques, e. g. , three-dimensional experiments. For the beginners, however, the situation has not changed markedly since the appearence of the first edition of this book. Therefore, we decided not to add new techniques to this second edition, but rather to increase the number of exerci ses from 23 to 33, the new ones being basically single-spectrum-problems.

Author : G. Batta,K. Kövér,C. Szántay, Jr.
Publisher : Elsevier
Page : 356 pages
File Size : 43,6 Mb
Release : 1997-12-04
Category : Science
ISBN : 0080536506

Get Book

Methods for Structure Elucidation by High-Resolution NMR by G. Batta,K. Kövér,C. Szántay, Jr. Pdf

Nuclear Magnetic Resonance Spectroscopy (NMR) is now widely regarded as having evolved into a subscience. The field has become immensely diverse, ranging from medical use through solid state NMR to liquid state applications, with countless books and scientific journals devoted to these topics. Theoretical as well as experimental advance continues to be rapid, and has in fact accelerated by many novel innovations. This multi-authored book focuses on the latest developments in the rapidly evolving field of high resolution NMR, specifically with a view to applications on the structure elucidation of organic molecules of moderate molecular weight. Conceptually it differs from basic educational texts, hard-core scientific papers and regular review articles in that each chapter may be regarded as the authors' personal account of their special insights and results that crystallised after several years of research into a given topic. The book revolves around several themes and offers a handful of scientific "gems" of various colors, reflecting the great diversity of NMR. It contains 16 loosely connected chapters written by some of today's most accomplished NMR scientists in the world. Each chapter is a unique synthesis of the authors' previous research results in the given field, and thus projects special insights. Much emphasis has been given to the latest developments in NMR, in particular to selective pulses and pulsed field gradients. As a part of the series "Analytical Spectroscopy Library", with subsequent editions coming along this book should provide a platform for future research accounts of similar flavor. The material is presented in a mostly non-mathematical fashion, and is intended mainly for chemists, application NMR scientists and students with already some background in NMR. Some of the chapters slightly overlap in the discussed topics, which is particularly exciting in terms of gaining insight into the same area from different angles.

Author : S. A. Richards,J. C. Hollerton
Publisher : John Wiley & Sons
Page : 345 pages
File Size : 49,9 Mb
Release : 2010-12-07
Category : Science
ISBN : 9780470977224

Get Book

Essential Practical NMR for Organic Chemistry by S. A. Richards,J. C. Hollerton Pdf

This book describes the use of NMR spectroscopy for dealing with problems of small organic molecule structural elucidation. It features a significant amount of vital chemical shift and coupling information but more importantly, it presents sound principles for the selection of the techniques relevant to the solving of particular types of problem, whilst stressing the importance of extracting the maximum available information from the simple 1-D proton experiment and of using this to plan subsequent experiments. Proton NMR is covered in detail, with a description of the fundamentals of the technique, the instrumentation and the data that it provides before going on to discuss optimal solvent selection and sample preparation. This is followed by a detailed study of each of the important classes of protons, breaking the spectrum up into regions (exchangeables, aromatics, heterocyclics, alkenes etc.). This is followed by consideration of the phenomena that we know can leave chemists struggling; chiral centres, restricted rotation, anisotropy, accidental equivalence, non-first-order spectra etc. Having explained the potential pitfalls that await the unwary, the book then goes on to devote chapters to the chemical techniques and the most useful instrumental ones that can be employed to combat them. A discussion is then presented on carbon-13 NMR, detailing its pros and cons and showing how it can be used in conjunction with proton NMR via the pivotal 2-D techniques (HSQC and HMBC) to yield vital structural information. Some of the more specialist techniques available are then discussed, i.e. flow NMR, solvent suppression, Magic Angle Spinning, etc. Other important nuclei are then discussed and useful data supplied. This is followed by a discussion of the neglected use of NMR as a tool for quantification and new techniques for this explained. The book then considers the safety aspects of NMR spectroscopy, reviewing NMR software for spectral prediction and data handling and concludes with a set of worked Q&As.

Author : T. Claridge
Publisher : Elsevier
Page : 408 pages
File Size : 43,5 Mb
Release : 1999-12-24
Category : Science
ISBN : 0080427995

Get Book

High-resolution NMR Techniques in Organic Chemistry by T. Claridge Pdf

From the initial observation of proton magnetic resonance in water and in paraffin, the discipline of nuclear magnetic resonance has seen unparalleled growth as an analytical method. Modern NMR spectroscopy is a highly developed, yet still evolving, subject which finds application in chemistry, biology, medicine, materials science and geology. In this book, emphasis is on the more recently developed methods of solution-state NMR applicable to chemical research, which are chosen for their wide applicability and robustness. These have, in many cases, already become established techniques in NMR laboratories, in both academic and industrial establishments. A considerable amount of information and guidance is given on the implementation and execution of the techniques described in this book.

Author : Roger G. Linington,Philip G. Williams,John B. MacMillan
Publisher : CRC Press
Page : 774 pages
File Size : 54,9 Mb
Release : 2015-10-14
Category : Science
ISBN : 9781498719636

Get Book

Problems in Organic Structure Determination by Roger G. Linington,Philip G. Williams,John B. MacMillan Pdf

With extensive detailed spectral data, it contains a variety of problems designed by renowned authors to develop proficiency in organic structure determination. It presents a concept-based learning platform, introducing key concepts sequentially and reinforcing them with problems that exemplify the complexities and underlying principles that govern each concept.

Author : Georgios Tsaparlis
Publisher : Royal Society of Chemistry
Page : 503 pages
File Size : 50,7 Mb
Release : 2021-05-17
Category : Education
ISBN : 9781839163593

Get Book

Problems and Problem Solving in Chemistry Education by Georgios Tsaparlis Pdf

Problem solving is central to the teaching and learning of chemistry at secondary, tertiary and post-tertiary levels of education, opening to students and professional chemists alike a whole new world for analysing data, looking for patterns and making deductions. As an important higher-order thinking skill, problem solving also constitutes a major research field in science education. Relevant education research is an ongoing process, with recent developments occurring not only in the area of quantitative/computational problems, but also in qualitative problem solving. The following situations are considered, some general, others with a focus on specific areas of chemistry: quantitative problems, qualitative reasoning, metacognition and resource activation, deconstructing the problem-solving process, an overview of the working memory hypothesis, reasoning with the electron-pushing formalism, scaffolding organic synthesis skills, spectroscopy for structural characterization in organic chemistry, enzyme kinetics, problem solving in the academic chemistry laboratory, chemistry problem-solving in context, team-based/active learning, technology for molecular representations, IR spectra simulation, and computational quantum chemistry tools. The book concludes with methodological and epistemological issues in problem solving research and other perspectives in problem solving in chemistry. With a foreword by George Bodner.

Author : Maria-Magdalena Cid,Jorge Bravo
Publisher : John Wiley & Sons
Page : 554 pages
File Size : 45,6 Mb
Release : 2015-04-20
Category : Science
ISBN : 9783527333363

Get Book

Structure Elucidation in Organic Chemistry by Maria-Magdalena Cid,Jorge Bravo Pdf

Intended for advanced readers, this is a review of all relevant techniques for structure analysis in one handy volume. As such, it provides the latest knowledge on spectroscopic and related techniques for chemical structure analysis, such as NMR, optical spectroscopy, mass spectrometry and X-ray crystallography, including the scope and limitation of each method. As a result, readers not only become acquainted with the techniques, but also the advantages of the synergy between them. This enables them to choose the correct analytical method for each problem, saving both time and resources. Special emphasis is placed on NMR and its application to absolute configuration determination and the analysis of molecular interactions. Adopting a practical point of view, the author team from academia and industry guarantees both solid methodology and applications essential for structure determination, equipping experts as well as newcomers with the tools to solve any structural problem.

Author : Antony J. Williams,Gary E. Martin,David Rovnyak
Publisher : Royal Society of Chemistry
Page : 344 pages
File Size : 43,6 Mb
Release : 2016
Category : Science
ISBN : 9781849733830

Get Book

Modern NMR Approaches to the Structure Elucidation of Natural Products by Antony J. Williams,Gary E. Martin,David Rovnyak Pdf

Modern NMR Approaches for the Structure Elucidation of Natural Products is part of a two-volume set focusing on the structure elucidation of natural products. Volume 1 discusses contemporary NMR approaches including optimized hardware and experimental approaches to obtain both the highest quality and most appropriate spectral data for analysis. It also discusses data processing and algorithmic-based analysis of the data to establish molecular structures. This meshing of details regarding data acquisition, software and hardware approaches to the elucidation of natural products will bring together contributions from leading experts in the field. Volume 2 reviews the application of NMR to the analysis of a series of different natural product families including marine natural products, anti-cancer agents, alkaloids, terpenes, steroids, antibiotics, carbohydrates, peptides and venoms. There are no books on the market that are focused on the unique combination of experimental approaches and modern hardware and software approaches to the structure elucidation of natural products. These books will, spread over 2 volumes, bring together acknowledged experts in the field of structure elucidation and be attractive to those with a specific interest in the characterisation of natural products. The volumes will be an essential resource for NMR spectroscopists, natural product chemists and industrial researchers working on natural product analysis or the characterisation of impurities and degradation products of pharmaceuticals that can be scarce as natural product samples.