J.B. Stothers NMR Facility
Department of Chemistry
Western University
London, Ontario, Canada
Instrumentation
The NMR Facility houses four NMR spectrometers: the Bruker Avance III HD 400 (B400), the Varian INOVA 400 (I400), the Varian INOVA 600 (I600), and the Varian Infinity Plus 400 (I+400). The B400 and I400 are used exclusively for liquids NMR experiments, the I600 is used primarily for liquids experiments, but is capable of performing NMR experiments on solids, and the I+400 is used exclusively for solid-state NMR experiments.

The Bruker AvanceIII HD Console, Autosampler and Magnet.
Bruker AvIII HD 400 (B400)
  • Utilizes an H/FX Bruker SmartProbe with Automated Tuning and Matching (ATM)

  • Bruker SampleMail with 24-position SampleCase autosampler for automated usage. Samples are submitted to the sample queue and run in sequential order.

  • Capable of acquiring 1D 1H, 19F, 31P-109Ag NMR spectra in automation.

  • Capable of acquiring 2D 1H-{19F,31P-109Ag} NMR spectra in automation.

  • Room-temperature experiments only.

  • Utilizes CentOS 7.2 and Bruker's Icon 5 NMR software package.
  • Ideal for beginners or infrequent users of the NMR facility.
Varian INOVA 400 (I400)
  • Utilizes an autoswitchable HF/CP probe capable of performing 1D and 2D NMR experiments involving 1H, 19F, 13C and 31P without modifications to the probe.

  • Indirect and detect detection of odd-nuclei, such as 11B, 29Si, 77Se.

  • Walk-up instrument. NMR time on the instrument must be booked using the FACES website. Time is limited to a maximum of 2 hours on weekdays from 9:00 am to 6:00 pm.

  • Variable-temperature NMR experiments from -80 °C to +130 °C.

  • Utilizes CentOS 6.8 and Varian's VnmrJ 4.2A NMR software package.

The INOVA 400 Console and Magnet
INOVA 600 CONSOLE
The INOVA 600 Console and Magnet.
Varian INOVA 600 (I600)
  • Utilizes a direct detection Auto-XDB probe capable of performing 1D and 2D NMR experiments involving 1H and 13C without modifications to the probe.

  • Indirect and detect detection of odd-nuclei, such as 11B, 29Si, 77Se.

  • Walk-up instrument. NMR time on the instrument must be booked using the FACES website. Time is limited to a maximum of 2 hours on weekdays from 9:00 am to 6:00 pm.

  • Variable-temperature NMR experiments from -25 °C to +100 °C. Low-temperature experiments do not require cryogens for cooling.

  • Capable of performing solid-state NMR experiments with a 3.2mm MAS HXY probe.

  • Utilizes CentOS 6.8 and Varian's VnmrJ 4.2A NMR software package.
Varian Infinity Plus 400 (I+400)
  • Wide-bore magnet used exclusively for solid-state NMR experiments.

  • Six Varian/Chemagnetics probes available for use: 3.2mm MAS HX, 4.0mm MAS HXY, 5.0mm MAS HFXY, 7.5mm HXY, 9.5mm HXY, static 5/10mm HX.

  • 3-channel spectrometer with two high-power (kW) broadband amplifiers, plus high-power proton and fluorine amplifiers.

  • Depending on the probe, variable-temperature NMR experiments can be performed from -140 °C to +250 °C.

  • Utilizes Solaris and Chemagnetics' Spinsight 4.2.3 NMR software.

The Infinity Plus 400 MAS Unit, Magnet, Console, and Computer