NMR measurements of scalar-coupling distributions in disordered solids.

Investigation of molecular motion of Cl-adamantane in the nanoprous zeolite by 13C NMR dipolar dephasing and variable contact time measurements

Dipolar-dephasing method provides some information about the strength of dipolar coupling in solids. Dipolar dephasing technique measures the time for a polarized carbon nucleus to lose its magnetization once the proton locking field is terminated. The dynamics of guest molecules adsorbed within the cavities and channels of nonporouszeolite strongly depend on the structure and chemical composit...

Selective NMR measurements of homonuclear scalar couplings in isotopically enriched solids.

Scalar (J) couplings in solid-state NMR spectroscopy are sensitive to covalent through-bond interactions that make them informative structural probes for a wide range of complex materials. Until now, however, they have been generally unsuitable for use in isotopically enriched solids, such as proteins or many inorganic solids, because of the complications presented by multiple coupled but nonis...

Two and Three-dimensional Through-Bond Homonuclear-Heteronuclear Correlation Experiments for Quadrupolar Nuclei in Solid-State NMR Applied to 27Al-O-31P-O-27Al networks

Through-bond correlation experiments can be realised in solids between spins of type X, separated by four chemical bonds, in X-O-Y-O-X molecular motives, provided a scalar coupling (J) between X and Y exists. In the 2D-Homonuclear-Heteronuclear Single Quantum Correlation (H-HSQC) experiment presented here, the central transitions of quadrupolar Al spins can be correlated via the scalar coupling...

Improving the sensitivity of J coupling measurements in solids with application to disordered materials

Assignment of dynamic regions in biological solids enabled by spin-state selective NMR experiments.

Structural investigations are a prerequisite to understand protein function. Intermediate time scale motional processes (ns-micros) are deleterious for NMR of biological solids and obscure the detection of amide moieties in traditional CP based solid-state NMR approaches as well as in regular scalar coupling based experiments. We show that this obstacle can be overcome by using TROSY type techn...