Solid-state 100 MHz NMR spectrometer (USTL)

NMR

Description

NMR spectroscopy is a powerful method to probe the atomic-scale structure and dynamics of a wide range of soft matter samples, including polymer materials, nanocomposites, gels, colloids, surfactant self-assemblies, biomacromolecules and liquid crystals. Because NMR gives information on the local atomic scale, it can easily characterize the bonding environment of atoms in soft materials, which often lack long-range positional order. Furthermore, NMR is a sensitive probe of local dynamics at atomic scale over timescales spanning 15 orders of magnitude, from 10^-12 s to 10² s. It can thus be used to study motions, including bond vibrations, conformational changes, rotational and translational motions of the molecules. 

This spectrometer is equipped with 7 and 4 mm MAS probes, and is notably useful for the acquisition of (i) 29Si NMR spectra of solids and (ii) spectra of paramagnetic solids. The hyperfine interactions between nuclei and unpaired electrons increases for increasing magnetic field.

The specifications of the instrument are listed below:

Field: 9.4 T

Console: Bruker BioSpin Avance II 400 MHz with 3 channels

Solid-state NMR probes:  

• 4 mm HX (X = ²⁰⁹Bi–³¹P) MAS probe;
• 7 mm HX (X = ²⁰⁹Bi–³¹P) MAS probe.

 

Local Contacts

• Dr. Julien TREBOSC
• Prof. Olivier Lafon

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