NMR Service GmbH provides the REDOR Box, which splits a single X-channel (e.g. of a Bruker H-X MAS probe) into a double-resonance circuit to enable X-Y Rotational Echo Double Resonance (REDOR) NMR experiments, e.g.13C-23Na or 6Li- 2H. The REDOR Box of course enables experiments that are related with the REDOR experiment, i.e. Transferred-Echo Double-Resonance (TEDOR) NMR experiments are also possible by using the REDOR Box.

REDOR experiment scheme



Technical data

  • Up to 1.5 kW RF pulse power (50 µs)
  • VSWR < 1.2
  • For frequency differences between 1 MHz and 25 MHz (max.)
  • Efficiency of up to 80 % compared to the single X-channel
  • Compatibel and tested for Bruker H-X MAS probes
  • Easy installation/mounting directly to the probe
  • Easily exchangeable coupling coils inside the box
  • Enables huge experimental flexibility to achieve desired splitting

Available for

  • 200 to 600 MHz magnets (Large REDOR Box)
  • 700 to 900 MHz magnets (Small REDOR Box)



Further readings / applications

F. A. Perras et al. Characterizing Substrate-Surface Interactions on Alumina-Supported Metal Catalysts by Dynamic Nuclear Polarization-Enhanced Double-Resonance NMR Spectroscopy. J. Am. Chem. Soc. 2017, 139, 2702.

C. Wang et al. Direct Detection of Supramolecular Reaction Centers in the Methanol-to-Olefins Conversion over Zeolite H-ZSM-5 by 13C–27Al Solid-State NMR Spectroscopy. Angew. Chem. Int. Ed. 2016, 55, 2507.

F. Pourpoint et al. Measurement of Aluminum–Carbon Distances Using S-RESPDOR NMR Experiments. Chem. Phys. Chem. 2012, 13, 3605.

D. Hirsemann et al. Covalent Grafting to μ-Hydroxy-Capped Surfaces? A Kaolinite Case Study. Chem. Mater. 2011, 23, 3152.