Solid-state high resolution NMR

Equation (3.2.14) is the starting point for numerical simulation of dynamic wideline NMR spectra. With the Jeener-Broekaert echo the imaginary part of the exponential depending on h is measured, and with the stimulated echo the real part is measured. The lineshapes of solid-echo spectra follow from (3.2.14) with t , = 0. 

---

Engelhardt G and Gunter 1987 High-Resolution Solid-State NMR of Silicates and Zeolites (Chichester Wiley)... 

J. S. Falcone, Jr., andJ. G. Blumberg, in O. Hutzinger, ed.. Handbook of Environmental Chemisty, Vol. 3, Pt. F, Springer-Vedag, Berlin, 1992. G. EngeUiardt and D. Michel, High Resolution Solid State NMR of Silicates and Zeolites, Chichester, John Wiley Sons, Ltd., 1987. 

High-Resolution Solid-State NMR Study of Reversible 1,5-Proton Shifts in Organic Solids [90MRC(S)29] NMR of Pyrazoles ... 

V. Laperche, J. F. Lambert, R. Prost, R., and J. J. Fripiat, High-resolution solid-state NMR of exchangeable cations in the interlayer surface of a swelling mica %a. 

Potrzebowski MJ, Kazmierski S (2005) High-Resolution Solid-State NMR Studies of Inclusion Complexes. 246 91-140 Poulin P, see Loudet JC (2003) 226 173-196 Raghuraman K, see Katti KV (2003) 229 121-141... 

Fujii and coworkers reported the synthesis and detailed structural analyses of alkylammonium/magnesium phyllosilicate hybrids [88], which were prepared by hydrothermal reaction from a mixture ofoctadecyldimethyl(3-trimethoxysilylpropyl)-ammonium chloride, silica sol, and magnesium hydroxide Mg(OH)2. The structure of the hybrid compound was studied by XRD, TEM, electron diffraction, high-resolution solid-state NMR, TG-DTA/MS, and elemental analysis. The resulting analytical information confirmed the unit structure, which consists of a 2 1... 

G. Engelhardt, D. Michel, High Resolution Solid State NMR of Silicate and Zeolites, John Wiley and Sons, New York, 1987. 

Ulrich AS (1999) High resolution solid state NMR, 1H, 19F. In Lindon J, TranterG, Holmes J (eds) Encyclopedia of spectroscopy and spectrometry. Elsevier, Oxford, pp 813-825... 

The first term in (24) was already calculated in (9). The second term can be neglected, as the CSA is usually too weak to require the second-order treatment. The last term is the second-order cross-term between the two interactions. A complete review of the second-order cross-terms and their effect on high-resolution solid-state NMR powder spectra of quadrupolar nuclei was recently published by Ashbrook et al. [31]. 

High-Resolution Solid State NMR of Framework Elements.192... 

The last ten years have seen increasing development in the field of high-resolution solid state NMR. This is due to the exploitation of relatively new methodologies, such as those which enable better resolved spectra to be obtained from quadrupolar nuclei and those which facilitate the measurement of internuclear distances. 

Pines and coworkers70 showed the feasibility of spin polarization transfer by SPINOE from laser-polarized 129Xe to surface 13C nuclei on low surface area materials in high-resolution solid-state NMR experiments. This technique provides the basis for novel surface 13C NMR investigations, e.g. of surface coatings, supported catalysts and electrode materials. 

Solid state NMR spectroscopy is used to determine molecular structures by analyzing the static and dynamic features of the material. In NMR experiments, both a magnetic field and a radio frequency field are applied to a solid sample or a solution resulting in an absorption of energy, which is detected as an NMR. Spectrometers are also available for high resolution solid state NMR. Nuclei in... 

Fig. 4 High-resolution solid-state NMR spectrum of the 1 1 cocrystal containing benzoic acid (BA) and pentafluorobenzoic acid (PFBA). The two peaks at ca. 174 ppm represent the carboxylic acid group of PFBA and the two peaks at ca. 167 ppm represent the carboxylic acid group of BA...

A. Goldburt and P. K. Madhu, Multiple-quantum magic-angle spinning high resolution solid-state NMR of half-integer spin quadrupolar nuclei. Annu. Rep. NMR Spectrosc., 2004, 54,81-153. 

J. Trebosc, J.-P. Amoureux and Z. Gan, Comparison of high-resolution solid-state NMR MQMAS and STMAS methods for half-integer quadrupolar nuclei. Solid State Nucl. Magn. Reson., 2007, 31,1-9. 

The application of FT-IR and high resolution solid state NMR to the structural characterization of epoxies is described. Theoretical and experimental background is given and progress to date in these two fields summarized. 

Efforts to understand the state of hydrogen in metals and metal hydrides have involved the use of NMR for many years. This study combines the conventional solid state NMR techniques with more recently developed high-resolution, solid state NMR techniques (5,6). Conventional NMR techniques furnish information on dipolar interactions and thus can furnish static geometrical information on hydrogen positions and information on proton motion within such solids. The newer multiple pulse techniques suppress proton-proton dipolar interaction and allow information on other, smaller interactions to be obtained. This chapter reports what the authors believe is the first observation of the powder pattern of the chemical shift tensor of a proton that is directly bonded to a heavy metal. 

---