Nuclear Magnetic Resonance Laboratory

This facility houses a 600 MHz NMR spectrometer with a range of probes and a 60 MHz benchtop NMR spectrometer. The facility has the capability to work with NMR samples at pressures up to 100 MPa. Some current research areas include the quantitative analysis of complex, real-world mixtures; low-uncertainty gas-phase mixture analysis; and liquid-liquid, vapor-liquid and vapor-solid equilibrium measurements. A dedicated laboratory provides all the necessary infrastructure. Major features of the 600 MHz spectrometer are summarized below.

600 MHz 5 mm QNP Cryogenic Probe:

• enables multipurpose NMR measurements for ¹H, ¹³C, ³¹P, and ¹⁵N
• the cryogenically cooled probe is three to four times more sensitive than conventional probes, which allows for the measurement of lower concentrations, or for greatly shortened experiment times (it's as much as 16 times faster than a conventional probe)
• automatic routines for shimming, tuning and matching
• sample temperature is controllable from 0 °C to 80 °C
• ¹H sensitivity is >2600:1

600 MHz 5 mm BBFO Probe:

• enables multipurpose NMR measurements for ¹H, ¹⁹F, or any nucleus in the range from ³¹P to ¹⁵N
• automatic routines for shimming, tuning and matching
• sample temperature is controllable from -150 °C to +150 °C
• ¹H sensitivity is >850:1

600 MHz 4 mm HX CP-MAS (solids) Probe:

• the broadband channel is tunable from ³¹P to ¹⁵N
• 15 kHz maximum spinning speed
• ¹³C linewidth: 4.6 Hz (adamantane)
• ³¹P sensitivity: S/N = 3221 (ammonium diphospate, 2 scans)¹³C sensitivity: S/N = 139 (natural abundance glycine, 4 scans)
• ¹⁵N sensitivity: S/N = 16 (natural abundance glycine, 4 scans)

Pulsed-Field-Gradient Diffusion Probe:

• gradient strength of 18 T/m
• sample temperature is controllable from -20 °C to +80 °C
• three exchangeable inserts, one tuned singly for ¹H
• water cooling for high duty cycles
• micro-imaging capability