Because of the coronavirus outbreak, some services are limited.  Facility managers have been communicating details to users as reopening plans are slowly put in place.  Please do not assume that you may use any instrument until you have been told that the instrument is available.  Contact the relevant manager if you have any questions.  Please see the MC2 coronavirus page, the Chemistry Department coronavirus page, or the McGill coronavirus webpage for more information.

vnmrs500

Liquids/solids NMR: Varian VNMRS 500 MHz NMR Spectrometer


Contact: nmr.chemistry [at] mcgill.ca (Robin Stein) - Location: OM34

Use the McGill NMR booking system to book time

DocumentationTraining - Rates


Applications

1H, 13C, and 2D with those nuclei; other nuclei and VT, with training

Console

Varian VNMRS 500 (three-channel, VT, z gradient)

Probes

  • Usual probe: SW (switchable): 1H (usual) or 19F (with training), and 13C (standard) or 15N (with training). Good for 13C detection
  • Inverse: 1H and either 31P (usual) or 13C (rare), with z gradient (good for 2D, but mediocre for 31P direct detection and poor for 13C direct detection)
  • Nanoprobe: for semi-solid samples that require rotation at the magic angle; 1H only; maximum spin rate ca. 2200 Hz
  • 3.2 mm Chemagnetics T3 (solids probe): up to 24 kHz MAS, 1H/13C-31P/15N-79Br
  • 6 mm Chemagnetics T3 (solids probe): up to 9 kHz MAS, 1H-19F/15N-31P

Booking rules

  • Up to 18 hours at a time, bookable up to 5 days in advance
  • 24 hours per person per week
  • If spectrometer is unused, then you may use up to 4 hours at a time (10 hours after 8 PM) even if you have already used your 24 hours per week

Notes

  • This spectrometer has a chiller and the easily accessible VT range is 0 °C – 110 °C. With liquid nitrogen, the setup can go down to –100 °C
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