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- W2092781585 abstract "Abstract This article reviews the large increase in applications of high-resolution 1 H magic-angle spinning (MAS) solid-state NMR, in particular two-dimensional heteronuclear and homonuclear (double-quantum and spin-diffusion NOESY-like exchange) experiments, in the last five years. These applications benefit from faster MAS frequencies (up to 80 kHz), higher magnetic fields (up to 1 GHz) and pulse sequence developments (e.g., homonuclear decoupling sequences applicable under moderate and fast MAS). 1 H solid-state NMR techniques are shown to provide unique structural insight for a diverse range of systems including pharmaceuticals, self-assembled supramolecular structures and silica-based inorganic–organic materials, such as microporous and mesoporous materials and heterogeneous organometallic catalysts, for which single-crystal diffraction structures cannot be obtained. The power of NMR crystallography approaches that combine experiment with first-principles calculations of NMR parameters (notably using the GIPAW approach) are demonstrated, e.g., to yield quantitative insight into hydrogen-bonding and aromatic CH–π interactions, as well as to generate trial three-dimensional packing arrangements. It is shown how temperature-dependent changes in the 1 H chemical shift, linewidth and DQ-filtered signal intensity can be analysed to determine the thermodynamics and kinetics of molecular level processes, such as the making and breaking of hydrogen bonds, with particular application to proton-conducting materials. Other applications to polymers and biopolymers, inorganic compounds and bioinorganic systems, paramagnetic compounds and proteins are presented. The potential of new technological advances such as DNP methods and new microcoil designs is described." @default.
- W2092781585 created "2016-06-24" @default.
- W2092781585 creator A5074003439 @default.
- W2092781585 date "2012-03-08" @default.
- W2092781585 modified "2023-09-27" @default.
- W2092781585 title "ChemInform Abstract: Applications of High-Resolution1H Solid-State NMR" @default.
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- W2092781585 doi "https://doi.org/10.1002/chin.201214278" @default.
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