Theoretical concepts in solid-state NMR spectroscopy
Seminar. Solid-state NMR Spectroscopy
... For liquids in which the molecules are mov- ing rapidly, the term 1 − 3cos 2 (θ) must be integraded over a sphere, as all angles θ are sampled. This integration produces the result that the dipole-dipole interaction is ...
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Perspective : current advances in solid state NMR spectroscopy
... Secondly, powdered materials are generally not magnetically isotropic; different particle orientations will have different magnetic susceptibilities, and hence different effective local magnetic fields. The resulting ...
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Intermolecular interactions and protein dynamics by solid state NMR spectroscopy
... NMR spectroscopy offers access to atomic-resolution details of the dynamics over a wide range of time ...solution NMR methods, where slow molecular tumbling leads to enhanced transverse relaxation ...
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Characterisation of inorganic materials using solid state NMR spectroscopy
... the NMR spectrum owing to the incomplete averaging of the dipolar ...MAS NMR spectrum, there is then the potential for the spinning sidebands to overlap, complicating or preventing ...
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Combining solid state NMR spectroscopy with first principles calculations – a guide to NMR crystallography
... of solid materials. Even when high-resolution approaches are used, solid-state NMR spectra may still contain complicated or overlapped spectral lineshapes, particularly as the structural ...
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Methods for the determination of the structures and dynamics of proteins by solid state NMR spectroscopy
... With rapid development comes potential for applying SSNMR to increasingly complex systems, offering deeper understanding into the workings of biological mechanisms at the molecular level. Large proteins and complexes ...
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Recent developments in solid state NMR spectroscopy of crystalline microporous materials
... predicted NMR parameters and those observed ...and NMR spectroscopy that is often referred to as NMR crystallography, as described previously, in many cases additional insight can be gained by ...
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Solid-State NMR Spectroscopy of Unreceptive Nuclei in Inorganic and Organic Systems
... 2 1 ω 0 (3 & 4I(I % 1)){ 1 2 V 00 Q % 4V 20 Q % 9V 40 Q } (2.33) larger than the CSA as measured in Hz; in this case, the isotropic peak will be the only observable peak. However, when the spinning speed is less than the ...
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New methods and applications in solid state NMR spectroscopy of quadrupolar nuclei
... the solid-state chemist is which of these established methods to choose? The literature shows that the most widely applied technique is MQMAS, which has enabled site resolution and extraction of structural ...
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$^{17}$O Solid-State NMR Spectroscopy of Functional Oxides for Energy Conversion
... solution state, rapid molecular tumbling faster than the NMR timescale averages out the anisotropy of many of the spin interactions, resulting in the observation of sharp resonances at the isotropic value ...
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Longer range distances by spinning angle encoding solid state NMR spectroscopy
... 10 acquisition of the free-induction decay, so as to obtain optimum sensitivity. The retention of both ideal resolution and long-range distance sensitivity was achieved by redesigning a 600 MHz HX MAS NMR probe to ...
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Structural Insights into Group 14 Compounds from Solid-State NMR Spectroscopy
... inverse relationship between second order quadrupolar broadening and field strength. Additionally, the study of these nuclei has benefited greatly from the use of QCPMG 5 and related pulse sequences. 6-8 In particular, ...
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Two Theoretical Approaches in Solid State Nuclear Magnetic Resonance Spectroscopy
... in solid-state nuclear magnetic resonance and the expansion schemes used as numerical integrators for solving the time dependent Schrodinger ...future theoretical and numerical directions in ...
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An Investigation of the Milled Wood Lignin Isolation Procedure by Solution- and Solid-State NMR Spectroscopy.
... 1 H spectra are most commonly collected using acetylated lignins as information concerning the phenolic and aliphatic hydroxyl groups can be obtained. Acetylated lignins are typically dissolved in CDCl 3 , although other ...
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Investigation of zeolitic imidazolate frameworks using 13C and 15N solid state NMR spectroscopy
... N solid-state NMR spectroscopy to characterise the local structure and disorder in a variety of single- and dual-linker ...solution-state NMR spectroscopy and the use of ...
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Exploring membrane selectivity of the antimicrobial peptide KIGAKI using solid-state NMR spectroscopy
... P NMR CSA line shape for both POPE and POPG bilayers, indicating the synergistic roles of POPE and POPG lipids in the disruption of the membrane structure by ...H NMR powder spectra show no reduction of the ...
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Retinal dynamics during light activation of rhodopsin revealed by solid-state NMR spectroscopy
... II state is reached [32] , whereas the 2 H NMR relaxation data suggest that the β4 strand displacement happens already in the meta I ...I state (15 kJ/mol versus about 12 kJ/mol in the dark and meta ...
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Characterization of Pharmaceutical Cocrystals and Salts by Dynamic Nuclear Polarization-Enhanced Solid-State NMR Spectroscopy
... of solid active pharmaceutical ingredients ...or solid-phase reactions of APIs with suitable cocrystal coformers, which are often weak ...multicomponent solid is whether it should be classified as a ...
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Rapid Characterization of Formulated Pharmaceuticals Using Fast MAS 1H Solid-State NMR Spectroscopy
... 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 the abundant ...
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Identification of different oxygen species in oxide nanostructures with O-17 solid-state NMR spectroscopy
... stopping NMR data collection in advance and data acquisition was stopped when enough signal/noise ratio was ...and NMR experiments) was repeated at least once to ensure that the results can be ...
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