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5. 400MHz ASCEND DNP-NMR Spectrometer for Solids

The brand new Bruker 400MHz (9.4T) Dynamic Nuclear Polarization (DNP) NMR spectrometer is available for solid-state experiments.

DNP Features:

  • 25 W gyrotron microwave source
  • G-factor range from 2.0163777 to 1.9844550
  • ~90 K operating temperatures
  • Magic angle spinning up to 12.5 kHz
  • 13C DNP-CPMAS NMR enhancements of 300-fold with proline and AMUPol

Available NMR probes:

  •   3.2mm MAS DNP-NMR triple resonance broadband X/Y/H probe

               -- H channel: 1H (400MHz) only

               -- X channel: 76 MHz -> 129 MHz (including 77Se, 29Si, 55Mn, 79Br, 13C, 27Al, 23Na, 71Ga, 11B, etc.)

               -- Y channel: 28 MHz -> 71 MHz (including 2H, 15N, 14N, etc.)

  •   4mm MAS triple resonance broadband X/Y/H probe

               -- H channel: 1H (400MHz) only

               -- X channel: 207Pb (81 MHz) - 31P (171 MHz)

                           17O (43 MHz) - 87Rb (132 MHz)

                           15N (30.5 MHz - 42.5 MHz)

                           w/47pF shunt-capacitor

               X/Y pairs: 31P/27Al, 13C/15N-2H

  •   2.5mm MAS triple resonance broadband X/F/H probe

               -- H channel: for both 1H (400MHz) and 19F (376MHz) (simultaneous tuning)

               -- X channel: typically 17O (43 MHz) - 119Sn (150MHz) (No 7Li and 31P)

               w/47pF shunt-capacitor: 31.6MHz - 45.5MHz (15N)

INSTRUMENT LOCATION: CNSI (Elings Hall) Room 1414

TRAINING: Please go to our NMR Training Request Form to sign-up for NMR training.

For more details of individual nuclei, please see:

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