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Chemical shift imaging in rotating solids by radiofrequency field gradients
1Laboratoire de Methodologie RMN,2, Universite H. Poincare, Vandoeuvre-les-Nancy Cedex, 54506, France.
Journal of Magnetic Resonance (San Diego, Calif. : 1997)
|September 19, 1998
Summary
A new solid-state Nuclear Magnetic Resonance (NMR) imaging equipment enables spatial dimension analysis along the rotation axis. This technique provides a 2D spectrum correlating carbon-13 (13C) chemical shift with spatial information.
Area of Science:
- Solid-state Nuclear Magnetic Resonance (NMR) spectroscopy
- Materials science imaging
- Chemical physics
Background:
- Solid-state NMR is crucial for characterizing materials.
- Spatial information is often difficult to obtain in solid-state NMR.
- Current methods may lack resolution or require specialized setups.
Purpose of the Study:
- To design and validate novel equipment for solid-state NMR imaging.
- To achieve spatial resolution along the rotation axis of a 13C CP/MAS probe.
- To integrate spectroscopic and spatial information in a 2D NMR experiment.
Main Methods:
- Development of a dedicated NMR setup incorporating a B1 gradient coil and a doubly tuned saddle coil.
- The B1 gradient coil is oriented perpendicular to the rotation axis.
- A 1H-13C doubly tuned saddle coil is used for spectroscopic acquisition, orthogonal to the gradient coil.
Main Results:
- Successful implementation of a 2D NMR experiment correlating 13C chemical shift with spatial information.
- Demonstration of the equipment's capability to provide spatial resolution.
- Validation of the designed approach through test experiments.
Conclusions:
- The developed equipment is effective for solid-state NMR imaging.
- This technique allows for simultaneous acquisition of chemical shift and spatial data.
- The approach offers a new avenue for materials characterization using solid-state NMR.