This book offers complete coverage of classic (one-dimensional) NMR as well as up-to-date coverage of two-dimensional NMR and other modern methods. This book focuses on all aspects of NMR including classic methods, modern techniques, practical advice for execution of the NMR experiment, theory, and more. For practicing NMR spectroscopists who want a better understanding of their subject, professors who want a wider knowledge of NMR, preparative (synthetic) organic chemists in industry who want to have more information about how to prove the structures of the compounds they make, and analytical chemists in industry who actually carry out the experiments and want a better understanding of what they are doing.
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Lambert is Clare Hamilton Hall Professor of Chemistry at Northwestern University. Hs is a pioneer in organosilicon chemistry and the aplications of nuclear magnetic resonance spectroscopy to organic chemistry.
Leland Norman Holland, Jr., Ph.D. (Norm) is the Dean of the College of Arts and Sciences, as well as an Associate Professor of Chemistry at Southeastern University in Lakeland, FL. Formerly, he was the Chair in the Division for Health, Mathematics and Science at Pasco-Hernando Community College. He has been actively involved in teaching and preparing students for various health professions including nursing, dentistry, and pharmacy. He comes to the teaching profession after spending several years doing basic science research at the VA Hospital in Augusta, Georgia and the Medical College of Georgia where he received his Ph.D. in Pharmacology. He has taught pharmacology over the course of 10 years at both the undergraduate and graduate level. He is very much dedicated to the success of students and has assisted many in their pursuits to earn healthcare degrees. Michael Patrick Adams, PhD., R.T.(R) is the Associate Dean for Health, Mathematics and Science at Pasco-Hernando Community College. He is an accomplished educator, author and national speaker. The National Institute for Staff and Organizational Development in Austin, TX named Dr. Adams a Master Teacher. He has been registered by the American Registry of Radiologic Technologists for over 30 years. Dr. Adams obtained his Masters degree in Pharmacology from Michigan State University and his Doctorate in Education at the University of South Florida.
Nuclear magnetic resonance (NMR) has become the chemist's most general structural tool. It is one of the few techniques that may be applied to all three states of matter. Some spectra may be obtained from less than a microgram of material. In the early 1960s, spectra were taken crudely on strip-chart recorders. The field has since seen one major advance after another, culminating in the Nobel prizes awarded to Richard R. Ernst in 1991 and to Kurt Wuthrich in 2002. The very richness of the field, however, has made it intimidating to many users. How can they take full advantage of the power of the method when so much of the methodology seems to be highly technical, beyond the grasp of the casual user? This text was written to answer this question. The chapters provide an essentially nonmathematical introduction to the entire field, with emphasis on structural analysis.
The early chapters introduce classical NMR spectroscopy. A thorough understanding of proton and carbon chemical shifts (Chapter 3) is required in order to initiate any analysis of spectra. The role of other nuclei is key to the examination of molecules containing various heteroatoms. An analysis of coupling constants (Chapter 4) provides information about stereochemistry and connectivity relationships between nuclei. The older concepts of chemical shifts and coupling constants are emphasized, because they provide the basis for the application of modern pulse sequences.
Chapter 5 and 6 describe the basics of modern NMR spectroscopy. The phenomena of relaxation, of chemical dynamics, and of multiple resonance are considered thoroughly. One-dimensional multipulse sequences are explored to determine the number of protons attached to carbon atoms, to enhance spectral sensitivity, and to determine connectivities among carbon atoms. Concepts that have been considered advanced, but are now moving towards the routine, are examined, including phase cycling, composite pulses, pulsed field gradients, and shaped pulses. Two-dimensional methods represent the current apex of the field. We discuss a large number of these experiments. It is our intention to describe not only what the pulse sequences do, but also how they work, so that the user has a better grasp of the techniques.
Two chapters are dedicated to experimental methodologies. Although many people are provided with spectra by expert technicians, increasing numbers of chemists must record spectra themselves. They must consider and optimize numerous experimental variables. These chapters address not only the basic parameters, such as spectral width and acquisition time, but also the parameters of more advanced techniques, such as spectral editing and twodimensional spectra.
To summarize modern NMR spectroscopy, Chapter 8 carries out the total structural proof of a single complex natural product. This chapter illustrates the tactics and strategies of structure elucidation, from one-dimensional assignments to two-dimensional spectral correlations, culminating in stereochemical analysis based on Overhauser effects.
The theory behind NMR not only is beautiful in itself, but also offers considerable insight into the methodology. Consequently, a series of appendices presents a full treatment of this theoretical underpinning, necessary to the physical or analytical chemist, but possibly still edifying to the synthetic organic or inorganic chemist.
This text thus offers
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