Time-suspension multiple-pulse sequences: applications to solid-state imaging

The study of solids by n.m.r. has been greatly facilitated with the development, over the last 10 years or so, of sophisticated r.f. multiple-pulse experiments designed to reduce the dipolar interaction. Often when the intrinsic dipolar line broadening is selectively reduced in many materials, smaller and usually more interesting chemical shift and exchange interactions are revealed that reflect the solid state electronic structure around the resonant nuclei. This situation obtains in liquids, of course; however, in solids the full interaction tensor components are measurable and yield valuable additional information on the chemical bonding. In this paper the development of the various multiple pulse techniques is reviewed and their detailed operation described in a consistent formalism.

Download Full-text

Application of Optimal Control Theory in Solid-State NMR. Time-Suspension Multiple-Pulse Sequences

Journal of Magnetic Resonance Series A ◽

10.1006/jmra.1993.1172 ◽

1993 ◽

Vol 103 (3) ◽

pp. 313-322 ◽

Cited By ~ 4

Author(s):

J.H. Iwamiya ◽

J. Callahan ◽

S.W. Sinton ◽

G.P. Drobny

Keyword(s):

Optimal Control ◽

Solid State ◽

Control Theory ◽

Optimal Control Theory ◽

Solid State Nmr ◽

Pulse Sequences ◽

Multiple Pulse

Download Full-text

Controlling the effects of pulse transients and RF inhomogeneity in phase-modulated multiple-pulse sequences for homonuclear decoupling in solid-state proton NMR

Journal of Magnetic Resonance ◽

10.1016/j.jmr.2004.05.017 ◽

2004 ◽

Vol 170 (1) ◽

pp. 22-41 ◽

Cited By ~ 44

Author(s):

Alexander J. Vega

Keyword(s):

Solid State ◽

Pulse Sequences ◽

Proton Nmr ◽

Multiple Pulse ◽

Homonuclear Decoupling ◽

Rf Inhomogeneity

Download Full-text

Solid State NMR Spectroscopy a Valuable Technique for Structural Insights of Advanced Thin Film Materials: A Review

Nanomaterials ◽

10.3390/nano11061494 ◽

2021 ◽

Vol 11 (6) ◽

pp. 1494

Author(s):

Mustapha El Hariri El Nokab ◽

Khaled O. Sebakhy

Keyword(s):

Thin Film ◽

Thin Films ◽

Solid State ◽

Solid State Nmr ◽

Pulse Sequences ◽

3D Structure ◽

Spectroscopic Techniques ◽

Film Research ◽

Versatile Technique ◽

Work Done

Solid-state NMR has proven to be a versatile technique for studying the chemical structure, 3D structure and dynamics of all sorts of chemical compounds. In nanotechnology and particularly in thin films, the study of chemical modification, molecular packing, end chain motion, distance determination and solvent-matrix interactions is essential for controlling the final product properties and applications. Despite its atomic-level research capabilities and recent technical advancements, solid-state NMR is still lacking behind other spectroscopic techniques in the field of thin films due to the underestimation of NMR capabilities, availability, great variety of nuclei and pulse sequences, lack of sensitivity for quadrupole nuclei and time-consuming experiments. This article will comprehensively and critically review the work done by solid-state NMR on different types of thin films and the most advanced NMR strategies, which are beyond conventional, and the hardware design used to overcome the technical issues in thin-film research.

Download Full-text