29 Si CP/MAS solid state NMR of organically functionalized materials
Multinuclear solid state NMR for the characterisation of inorganic materials
... the solid-state NMR spectra harder to ...A NMR experiment that can be used to reduce the impact of a number of these interactions is magic-angle spinning ...2-4 MAS is routinely used in ...
401
Solid-state NMR of Complex Nano- and Microcrystalline Materials
... 47,50,77–79 MAS rates of ...Unfortunately, MAS experiments are not generally useful for patterns with breadths on the order of 100 kHz or more, especially for quadrupolar ...First, MAS only results ...
379
Characterization of Inorganic Catalysts and Materials by Solid-State NMR
... to Cp 2 ZrCl 2 and 1, but Ω = 550 ppm, which is significantly larger than those of the chlorinated ...of Cp 2 ZrBr 2 provide a relatively poor match with the low frequency discontinuity of the static ...
447
Solid state NMR studies of inorganic pigment materials and catalysts
... of the interaction is relatively small. As the quadrupolar interaction is dominant over the CSA interaction in the central line, this implies that the CSA interaction is also very small. There is some distribution in the ...
202
Diffraction and Solid State NMR Studies of Inorganic Framework Materials.
... O NMR probes into the local oxygen environment and provides localised information about the oxygen ...sites. NMR can be used to investigate dynamic processes although prior to 2002 it had not been commonly ...
93
Characterisation of inorganic materials using solid state NMR spectroscopy
... from MAS experiments, 32,33 and a number of fitting procedures have been proposed over the years in order to extract the CSA parameters in this ...the MAS rate, to be made and then compared with ...
411
Galacturonic Acid Content and Degree of Esterification of Pectin from Sweet Potato Starch Residue Detected Using 13C CP/MAS Solid State NMR
... wall materials were dispersed in 250 mL ...pectin materials was neutralised with 32% NaOH (Laboratory UNILAB Reagent AJAX), then the same volume of 95% ethanol was added, the mixture was stirred for 5 ...
22
The use of solid state NMR to monitor reactions and doping in inorganic materials
... The NMR probe can be considered to be the one of the most important parts of the NMR ...the NMR probe may also contain additional equipment for the application of MAS, variable temperature, or ...
182
Recent technique developments and applications of solid state NMR in characterising inorganic materials
... amorphous materials the use of MQDOR to remove line broadening interactions allows the chemical shift and EFG distributions to be directly determined which is difficult from other approaches such as multiple field ...
45
Assessing the detection limit of a minority solid state form of a pharmaceutical by 1H double quantum MAS NMR spectroscopy
... MHz solid-state NMR Facility used in this research was funded by EPSRC and BBSRC, as well as the University of Warwick including via part funding through Birmingham Science City Advanced ...
27
Development of solid state NMR to understand materials involved in catalytic technology used in fuel cells
... Figure 6.8: The quadrupole coupling parameter and isotropic shift plots for the BZA and the series of group IA hemibenzoates. calculated DFT parameters. The hydroxyl (site 2) shows a decreased shift and P Q as also ...
203
New Directions for Solid-State NMR of Insensitive Nuclei: Applications to Metal Nuclei in Inorganic Materials
... in MAS spectra is highly dependent upon both peak positions and ...stable MAS speeds), we are sceptical of the intensities of the SSBs on the outer limits of broad MAS patterns and their relation to ...
422
New Directions for Solid-State NMR of Insensitive Nuclei: Applications to Metal Nuclei in Inorganic Materials
... in MAS spectra is highly dependent upon both peak positions and ...stable MAS speeds), we are sceptical of the intensities of the SSBs on the outer limits of broad MAS patterns and their relation to ...
422
Perspective : current advances in solid state NMR spectroscopy
... powdered materials are generally not magnetically isotropic; different particle orientations will have different magnetic susceptibilities, and hence different effective local magnetic ...by MAS, and these ...
27
Combining solid state NMR spectroscopy with first principles calculations – a guide to NMR crystallography
... of NMR crystallography, and more generally of NMR spectroscopy, to determine detailed structural information, has significantly grown in popularity in recent ...faster MAS rates and more complex ...
19
Multinuclear solid state NMR investigation of Hexaniobate and Hexatantalate compounds
... Nb MAS NMR were performed on niobium oxides 55 or mixed-metal oxides that are used as catalysts, piezoelectric components or optoelectronic ...static/MAS NMR study performed on a hexaniobate ...
48
Solid state NMR studies of ferroelectric relaxor materials
... Multi-nuclear solid state nuclear magnetic resonance has been used to investigate the local atomic structure of the relaxor ferroelectric materials, lead magnesium [r] ...
208
THE ELUCIDATION OF CELLULOSE SUPRAMOLECULAR STRUCTURE BY 13 C CP-MAS NMR
... typical MAS rotors used for solid-state NMR analyses of cellulose have outer diameters of 7 mm or rather 4 mm, sometimes even less resulting in sample volumes that range from 350 l down to ...
9
Recent developments in solid state NMR spectroscopy of crystalline microporous materials
... for materials with less well-characterised structures, where potential models can be evaluated by considering the agreement between predicted NMR parameters and those observed ...and NMR spectroscopy ...
57
Rapid Characterization of Formulated Pharmaceuticals Using Fast MAS 1H Solid-State NMR Spectroscopy
... fast MAS 1 H SSNMR spectroscopy has not been demonstrated as a method to detect APIs in realistic dosage forms, likely because the limited resolution of 1 H SSNMR spectra causes intense 1 H NMR signals from ...
38