Author: Hye Kyung Cho TimkenPublisher:
ISBN:
Category :
Languages : en
Pages : 406
Book Description
Solid-state Nuclear Magnetic Resonance Studies of Quadrupolar Nuclei in Inorganic Systems
Author: Hye Kyung Cho TimkenPublisher:
ISBN:
Category :
Languages : en
Pages : 406
Book Description
Multinuclear Solid-State Nuclear Magnetic Resonance of Inorganic Materials
Author: Kenneth J.D. MacKenziePublisher: Elsevier
ISBN: 0080537103
Category : Science
Languages : en
Pages : 748
Book Description
Techniques of solid state nuclear magnetic resonance (NMR) spectroscopy are constantly being extended to a more diverse range of materials, pressing into service an ever-expanding range of nuclides including some previously considered too intractable to provide usable results. At the same time, new developments in both hardware and software are being introduced and refined. This book covers the most important of these new developments. With sections addressed to non-specialist researchers (providing accessible answers to the most common questions about the theory and practice of NMR asked by novices) as well as a more specialised and up-to-date treatment of the most important areas of inorganic materials research to which NMR has application, this book should be useful to NMR users whatever their level of expertise and whatever inorganic materials they wish to study.
Solid-state Nuclear Magnetic Resonance Spectroscopic Studies of Quadrupolar Nuclei in Inorganic Systems and Determination of Optical Parameters in Optical Waveguides
Author: Oc Hee HanPublisher:
ISBN:
Category :
Languages : en
Pages : 254
Book Description
The general purpose of my research in this thesis is to apply solid state NMR of quadrupole nuclei to characterize and probe the chemical, structural, physical and electronic properties of materials, such as group III-V semiconductors, AlCl$sb3cdot$THF complexes, graphite intercalated with AlCl$sb3$ (and related systems), and the copper-free high T$sb{rm c}$ superconductor (Ba$sb{0.6}$K$sb{0.4}$BiO$sb3$), and related systems. Overall, I have tried to use solid-state NMR to give new information about structure in a variet of interesting and important conducting compounds, especially: semiconductors, superconductors, and metallic intercalation compounds (together with additional studies on appropriate "model" compounds).
Solid-state Nuclear Magnetic Resonance Spectroscopy of Unreceptive Quadrupolar Nuclei in Inorganic Materials
Author: Andre SutrisnoPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Preparation and characterization of inorganic materials is a crucial practice because understanding the relationship between structure and property is important for improving current performance and developing novel materials. Many metal centers in technologically and industrially important materials are unreceptive low- quadrupolar nuclei (i.e., possessing low natural abundance, low NMR frequencies and large quadrupole moments) and they usually give rise to very broad NMR resonances and low signal-to-noise ratios, making it difficult to acquire their solid-state NMR spectra. This thesis focuses on the characterization of inorganic materials using solid-state NMR (SSNMR) spectroscopy at very high magnetic field of 21.1 T in combination with quantum chemical calculations for computational modeling. In the first part of this thesis, 67Zn and 17O SSNMR studies of several microporous materials were reported. The results of 67Zn SSNMR studies from several important metal-organic frameworks (MOFs), in particular, zeolitic imidazolate frameworks (ZIFs) were presented. 67Zn SSNMR spectroscopy was used to gain structural information regarding the desolvation process in MOF-5. Furthermore, 67Zn SSNMR spectroscopy were utilized to study the host-guest interactions in ZIF-8 loaded with different guest molecules. Static 67Zn SSNMR spectra of microporous zinc phosphites (ZnP) and zinc phosphates (ZnPO) were also acquired at natural abundance. The Gaussian calculation results on a model cluster for ZnP indicate that Zn-O bond length is the most dominant factor to the observed quadrupolar coupling constant (CQ) among other geometric parameters around Zn centres. The local structures of the framework oxygen sites in molecular sieve SAPO-34 were directly probed by several 17O SSNMR techniques. The involvement of water vapor during the SAPO-34 formation in dry-gel conversion (DGC) synthesis was also investigated. In the second part, 91Zr and 33S SSNMR spectra of layered zirconium phosphates (ZrP) and transition metal disulfides (MS2) were obtained. The empirical correlations between NMR parameters and various structural parameters were used for obtaining partial structural information in Li+ and Co(NH3)63+ exchanged layered ZrP. For a series of closely related MS2 materials, the observed differences in the CQ(33S) values were rationalized by considering the difference in their geometrical arrangements. The final part of this thesis featured two examples of SSNMR spectroscopy of exotic nuclei in some interesting inorganic materials. (i) The experimental 135/137Ba SSNMR spectroscopy and theoretical studies of -BBO, an important non-linear optical (NLO) material, indicate that the true crystal structure of -BBO is R3c space group rather than R3. (ii) An ultrahigh field natural abundance 73Ge SSNMR study of two representative germanium containing materials [GeCl2-dioxane and GePh4] demonstrated that acquiring 73Ge wideline NMR spectra of germanium compounds where the Ge experiences an extremely large quadrupolar interaction is feasible and that the small 73Ge chemical shielding anisotropy (CSA) can be directly measured.
Solid-state Nuclear Magnetic Resonance Studies of Cross Polarization from Quadrupolar Nuclei
Author: Susan Margaret De PaulPublisher:
ISBN:
Category :
Languages : en
Pages : 472
Book Description
Solid-State NMR IV Methods and Applications of Solid-State NMR
Author: B. BlümichPublisher: Springer Science & Business Media
ISBN: 3642791271
Category : Science
Languages : en
Pages : 210
Book Description
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.
Solid State Nuclear Magnetic Resonance Studies of Cross Polarization from Quadrupolar Nuclei
Author: Solid-State NMR II
Author: Bernhard BlümichPublisher: Springer
ISBN: 9783540571902
Category : Science
Languages : en
Pages : 236
Book Description
1. G. Engelhardt, H. Koller, Stuttgart, FRG: 29Si NMR of Inorganic Solids 2. H. Pfeifer, Leizpig, FRG: NMR of Solid Surfaces 3. A. Sebald, Bayreuth, FRG: MAS and CP/MAS NMR of Less Common Spin-1/2 Nuclei 4. C. J{ger, Mainz, FRG: Satellite Transition Spectroscopy of Quadrupolar Nuclei 5. D. Brinkmann, M. Mali, Z}rich, CH: NMR-NQR Studies of High-Temperature Superconductors
Solid State NMR
Author: Jerry C. C. ChanPublisher: Springer
ISBN: 3642248039
Category : Science
Languages : en
Pages : 328
Book Description
Dipolar Recoupling, by Niels Chr. Nielsen, Lasse A. Strassø and Anders B. Nielsen.- Solid-State NMR Techniques for the Structural Determination of Amyloid Fibrils, by Jerry C. C. Chan.- Solid-State 19F-NMR of Peptides in Native Membranes, by Katja Koch, Sergii Afonin, Marco Ieronimo, Marina Berditsch and Anne S. Ulrich.- Probing Quadrupolar Nuclei by Solid-State NMR Spectroscopy: Recent Advances, by Christian Fernandez and Marek Pruski.- Solid State NMR of Porous Materials Zeolites and Related Materials, by Hubert Koller and Mark Weiß.- Solid-State NMR of Inorganic Semiconductors, by James P. Yesinowski.-
Author: Robert Alan Kinsey