Download or read book Spin Dynamics of Pulsed Nuclear Magnetic Double Resonance in Solids written by Michael Edward Stoll and published by . This book was released on 1977 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the first part of this thesis, experiments utilizing an NMR phase interferometric concept are presented. The spinor character of two-level systems is explicitly demonstrated by using this concept. Following this is the presentation of an experiment which uses this same idea to measure relaxation times of off-diagonal density matrix elements corresponding to magnetic-dipole-forbidden transitions in a 13C-1H, AX spin system. The theoretical background for these experiments and the spin dynamics of the interferometry are discussed also. The second part of this thesis deals with NMR dipolar modulated chemical shift spectroscopy, with which internuclear bond lengths and bond angles with respect to the chemical shift principal axis frame are determined from polycrystalline samples. Experiments using benzene and calcium formate verify the validity of the technique in heteronuclear (13C-1H) systems. Similar experiments on powdered trichloroacetic acid confirm the validity in homonuclear (1H-1H) systems. The theory and spin dynamics are explored in detail, and the effects of a number of multiple pulse sequences are discussed. The last part deals with an experiment measuring the 13C chemical shift tensor in K2Pt(CN)4Br0.3 · 3H2O, a one-dimensional conductor. The 13C spectra are strongly affected by 14N quadrupolar interactions via the 13C -14N dipolar interaction. Single crystal rotation spectra are shown. An appendix discussing the design, construction, and performance of a single-coil double resonance NMR sample probe is included.

Download or read book Pulsed Nuclear Magnetic Resonance and Spin Dynamics in Solids written by Jacek W. Hennel and published by . This book was released on 1973 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulsed Nuclear Magnetic Resonance and Spin Dynamics in Solids written by J. W. Hennel and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Magnetic Resonance in Solids written by Lieven Gerven and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulsed Nuclear Magnetic Resonance and Spin Dynamics in Solifs written by and published by . This book was released on 1973 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulsed Nuclear Magnetic Resonance in Solids written by and published by . This book was released on 1978 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulsed Nuclear Magnetic Resonance and Spin Dynamics in Solids Proceedings of the First Specialized Colloque Krakow 28th August 1st September 1973 Ed by J W Hennel written by Jacek W. Hennel and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Magnetic Resonance written by Warren S. Warren and published by Academic Press. This book was released on 2012-12-02 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Magnetic Resonance: The Waugh Symposium, Volume 14 is a collection of manuscripts presented at the 1989 symposium on “High Resolution NMR in Solids , held at the Massachusetts Institute of Technology. The contributors provide 20- to 30-page articles consistent with AMR’s traditional emphasis on quantitative analysis of NMR techniques. Organized into 13 chapters, this book discusses the principles triple-quantum filtered two-dimensional exchange spectroscopy and its application in the measurement of cross correlation between pairs of dipole-dipole interactions. It then describes alternative ways of using fictitious spin in pulsed nuclear quadrupole resonance or NMR. General topics on the application of optical spectroscopy; the saturation of spin-spin energy by slow continuous bulk rotation; the frequency-switched Lee-Goldburg pulse cycle; and high-resolution proton NMR in solid systems are also explored. A chapter examines an entirely different view of spin dynamics in the presence of radio-frequency fields. This book also deals with the theoretical background and application of solid-state and zero-field NMR spectroscopies to structure determination. Lastly, the utilization of the Floquet formalism in the design of broadband propagators in two-level systems and the two classes of novel NMR phenomena related to the symmetrization postulate are discussed. Analytical and quantum chemists, physicists, biochemists, and materials science researchers will find this book invaluable.

Download or read book Pulsed Nuclear Magnetic Resonance and Spin Dynamies in Solids written by J. W. Hennel and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulsed Nuclear magnetic resonance and Nuclear Spin Dynamics in AlP written by Yin-shiong Hwang and published by . This book was released on 1975 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Multiple pulse Techniques for Solid state Nuclear Magnetic Resonance Spectroscopy of Materials written by Tony Montina and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid state NMR has the ability to obtain detailed structural information at the molecular level in materials. This has led to the development of a large number of high resolution techniques, some of which utilize multiple pulse methods. The behaviour of these multiple pulse techniques has, to date, been explained using either relaxation or spin dynamics. Ultimately, an explanation based on a combination of both dynamics is required in order to properly understand the underlying mechanism of these techniques. This work presents an explanation of the experimental behaviour observed for three multiple pulse domain selection techniques: the DIVAM, Direct DIVAM, and Refocused DIVAM sequences. This is based on a combination of spin and relaxation dynamics and is accomplished using both analytical expressions and simulations obtained using a general simulation program for solid-state NMR spectroscopy (SIMPSON).

Download or read book Nuclear Magnetic Resonance Spin Dynamics in Solids written by and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Encyclopedia of Nuclear Magnetic Resonance Volume 9 written by David M. Grant and published by John Wiley & Sons. This book was released on 1996 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt: The content of this volume has been added to the online reference work Encyclopedia of Magnetic Resonance. For further information see Encyclopedia of Magnetic Resonance. As a stand alone volume, Advances in NMR comprehensively highlights the rapid progress of nuclear magnetic resonance over the last five years. Features 66 articles on the latest major advances in NMR Written by over 80 internationally recognised experts With over 900 pages, illustrated extensively throughout, and an easy to read large double-columned format, Advances in NMR covers indepth articles on the latest advances in spectroscopic techniques; nuclear interactions; biochemical, physical and chemical applications. Including these outstanding articles: Double-Quantum NMR Spectroscopy of Dipolar Coupled Spins Under Fast Magic Angle Spinning (H W Spiess) Pulse Sequence Design using Rotor and Spin Symmetry ( M Levitt) Indirect Nuclear Spin-Spin Coupling Tensors (R E Wasylishen) Weakly Aligned Biomolecules in Liquid Crystals (A Bax) Multiple-Resonance, Multi-dimensional Solid-state NMR of Proteins (S J Opella) Dynamics of Hydrogen Transfer in Liquids and Solids (H Limbach) Optically Pumped NMR of Semiconductors and Two-dimensional Electron Systems (R Tycko/S E Barrett) "The list of contributors looks like a Who's Who of the subject" —The Times Higher Education Supplement

Download or read book Solid State NMR IV Methods and Applications of Solid State NMR written by B. Blümich and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid-State NMR is a branch of Nuclear Magnetic Resonance which is presently experiencing a phase of strongly increasing popularity. The most striking evidence is the large number of contributions from Solid-State Resonance at NMR meetings, approaching that ofliquid state resonance. Important progress can be observed in the areas of methodological developments and applications to organic and inorganic matter. One volume devoted to more or less one of each of these areas has been published in the preceding three issues. This volume can be considered an addendum to this series. Selected methods and applications of Solid-State NMR are featured in three chapters. The first one treats the recoupling of dipolar interactions in solids, which are averaged by fast sample rotation. Following an introduction to effective Hamiltonians and Floquet theory, different types of experiment such as rotary resonance, dipolar chemical shift correlation spectroscopy, rotational resonance and multipulse recoupling are treated in the powerful Floquet formalism. In the second chapter, the different approaches to line narrowing of quadrupolar nuclei are reviewed in a. consistent formulation of double resonance (DaR) and dynamic angle spinning (DAS). Practical aspects of probe design are considered as well as advanced 2D experiments, sensitivity enhancement techniques, and spinning sideband manipulations. The use of such techniques dramatically increases the number of nuclei which can be probed in high resolution NMR spectroscopy. The final chapter describes new experimental approaches and results of structural studies of noncrystalline solids.

Download or read book Principles of High Resolution NMR in Solids written by M. Mehring and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of Nuclear Magnetic Resonance (NMR) has developed at a fascinating pace during the last decade. It always has been an extremely valuable tool to the organic chemist by supplying molecular "finger print" spectra at the atomic level. Unfortunately the high resolution achievable in liquid solutions could not be obtained in solids and physicists and physical chemists had to live with unresolved lines open to a wealth of curve fitting procedures and a vast amount of speculations. High resolution NMR in solids seemed to be a paradoxon. Broad structure less lines are usually encountered when dealing with NMR in solids. Only with the recent advent of mUltiple pulse, magic angle, cross-polarization, two-dimen sional and multiple-quantum spectroscopy and other techniques during the last decade it became possible to resolve finer details of nuclear spin interactions in solids. I have felt that graduate students, researchers and others beginning to get involved with these techniques needed a book which treats the principles, theo retical foundations and applications of these rather sophisticated experimental techniques. Therefore I wrote a monograph on the subject in 1976. Very soon new ideas led to the developement of "two-dimensional spectroscopy" and "multiple-quantum spectroscopy", topics which were not covered in the first edition of my book. Moreover an exponential growth of literature appeared in this area of research leaving the beginner in an awkward situation of tracing back from a current article to the roots of the experiment.

Download or read book Spin Temperature and Nuclear Magnetic Resonance in Solids written by Maurice Goldman and published by . This book was released on 1970 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamic Nuclear Polarization and Electron Spin Resonance in Paramagnetic Solids at High Field written by Souheil James Inati and published by . This book was released on 1999 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: