CEMHTI - Conditions Extrêmes et Matériaux : Haute Température et Irradiation

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NMR research groups @ CEMHTI

Actvités RMN du CEMHTI
D.Massiot, Progrès récents de la Résonance Magnétique nucléaire du solide pour la caractérisation structurale de matériaux. Spectra Analyse 21 27-33 2002

franck.fayon@cnrs-orleans.fr  Franck Fayon   research group...
Solid State NMR, High Temperature NMR, Oxydes, Hybrids , Disordered Solids
RMN du solide, RMN Haute Température, Oxydes, Hybrides, Matériaux Désordonnés.

catherine.bessada@cnrs-orleans.fr  Catherine Bessada   research group...
Molten salts, Structure and Dynamics by Solid State NMR and high temperature NMR
Sels Fondus, Structure et Dynamique par RMN du solide, et RMN Haute Température

pierre.florian@cnrs-orleans.fr  Pierre Florian   research group...
High Resolution Solid State and High Temperature NMR
RMN Haute Résolution Solide et Haute Température

dominique.massiot@cnrs-orleans.fr  Dominique Massiot   now director of INC CNRS - Paris

NMR publications @ CEMHTI

Demande d'Expérience / Ask for experimental time by contacting :
or / ou
pierre.florian@cnrs-orleans.fr  Pierre Florian   [+33](0)238 25 55 04

Dmfit & EditNMR programs 

The Dmfit programs enables fitting of solid state (and liquid) NMR spectra, including 1D and 2D datasets
current version is : dmfit#20170727
Description & Help... / Download...
Edit NMR program : file Viewer for NMR files (Bruker, Ascii...)
Description & Help...

Spectrometers Probes & Capabilities
Avance 850MHz

3 channels H/F,X,Y
Type Ø Vmax X range Tmin Tmax X/Y ranges
HXY 1.3 67 15N ↔ 13C -30°C +80°C 27Al/15N, 27Al/29Si, 31P/27Al, 11B/17O-29Si
HXY 2.5 35 29Si ↔ 31P -30°C +80°C 27Al/29Si, 11B/29Si, 11B/27Al, 31P/27Al
HXY 3.2 24 2D ↔ 31P -140°C +150°C 13C/15N, 27Al/29Si, 11B/29Si, 31P/29Si-27Al
HXY 3.2 24 DBB -140°C +150°C
HX 4.0 15 103Rh ↔ 13C -140°C +150°C n/a
HX 3.0 27 15N ↔ 31P -140 +170 15N, 29Si, 79Br, 13C, 27Al, 11B, 31P
X 5.0 - ? ? ? n/a
X 10.0 - 29Si ↔ 11B RT +1500°C n/a

Avance 750MHz

4 channels H/F,X,Y,Z
Type Ø Vmax X range Tmin Tmax X/Y ranges
HXY 1.3 67 15N ↔ 13C -30°C +80°C 27Al/17O-29Si, 11B/29Si, 11B/27Al
(H,F)XY 1.3 67 199Hg ↔ 31P -30°C +80°C -
HXY 2.5 35 33S ↔ 31P -70°C +80°C -
HXY 2.5 35 ? ↔ ? -70°C +80°C 31P/17O, 31P/27Al-71Ga, 11B/29Si-27Al, 27Al/29Si, 13C/14N, 2H/14N-15N
XYZ 3.2 24 31P/27Al/17O ? ? -
HXY 4.0 15 ? ↔ ? -140°C +150°C 11B/29Si, 27Al/17O-29Si, 29Si/17O
HXY 4.0 15 ? ↔ 31P -140°C +150°C 31P/27Al-71Ga, 31P/17O-71Ga, 11B/17O
HX 4.0 15 109Ag ↔ 13C -140°C +150°C -
XYZ 4.0 18 double coil probe ? ?
X 7.0 8 89Y ↔ 17O ? ? -
X 10.0 - 102MHz ↔ 269MHz RT 1300°C -

Avance 400MHz

3 channels H/F,X,Y
  • MAS 2.5mm double tune H/F, X
  • MAS 2.5mm triple tune H/F, X, Y
  • MAS 3.2mm triple tune H/F, X, Y
  • MAS 4.0mm double tune
  • High Temperature single tune crucible Tmax ~1300°C / levitation Tmax 2000°C unique design
  • High Temperature single tune crucible Tmax ~900°C / Diffusion measurments (50G/cm gradients)

Avance 300MHz

2 channels H/F,X
  • MAS 2.5mm single tune X
  • MAS 4.0mm double tune H/F, X
  • MAS 3.2mm single tune
  • MAS 7.0mm double tune
  • High Temperature single tune crucible Tmax ~1300°C / levitation Tmax 2000°C  unique design

High Temperature NMR experimental setup

High temperature setup associating CO2 laser heating and crucible or levitation device.

Three of our spectrometers (750MHz, 400MHz and 300MHz) are equiped for laser heated High or Very High Temperature experiments :

  • Closed BN crucible container (Tmax ~1200°C) - application for molten silicates or molten salts
  • Aerodynamic levitation device (Tmax ~2500°C) for direct laser heating of the sample droplet under oxidizing or neutral atmosphere - application to refractory liquids (aluminates, alumino silicates...)
  • Two CO2 lasers of typically 100 to 150W depending on the system for heating from top / bottom with computer control