Office of Science
FAQ
Capabilities

NMR Spectrometer: 300 MHz WB CMX for Solids (and liquids)

Quick Specs

  • 300-MHz frequency
  • Capable of solid-state NMR and solution-state spectroscopy

EMSL's Varian Infinity CMX 300-MHz nuclear magnetic resonance (NMR) spectrometer is a wide-bore system equipped with a Varian Infinity CMX console. This system is capable of performing solid-state NMR experiments and solution-state spectroscopy. EMSL researchers use the solid state for a variety of applications, including multinuclear structural studies of catalysts and environmental species/coordination studies of natural products. The solution-state capabilities are primarily used for routine liquids NMR of organic synthesis samples.

The console is equipped with three radio frequency channels. The solid-state probes include a 5-mm HXY MAS probe (12-KHz spinning, extended tuning range on the Y-low frequency channel to 21.1 MHz) and a 7.5-mm HX probe (7-KHz spinning). The solution-state probes are comprised of 5-mm broadband (HX) and 10-mm broadband (HX) probes. The console is controlled by a Sun Ultra 5 computer connected to the network.

Researchers may operate this system independently and are provided as much training as necessary for independent operation.

  1. Understanding the nature of surface nitrates in BaO/gamma-Al2O3 NOx storage materials: A combined experimental and theoretical study .
  2. Synthesis and Characterization of Bulk Vitreous Cadmium Germanium Arsenide.
  3. Advancements Toward the Greener Processing of Engineered Nanomaterials -- Effect of Core Size on the Dispersibility and Transport of Gold Nanocrystals in Near-Critical Solvents.
  4. Direct Observation of Ion Exchange in Mechanically Activated LiH+MgB2 System Using Ultra-High Field Nuclear Magnetic Resonance Spectroscopy.
  5. An Isotropic Chemical Shift-Chemical Shift Anisotropic Correlation Experiment Using Discrete Magic Angle Turning.
  1. Probing Reaction Pathways Using in situ 1H NMR Spectroscopy (Hydrogen Does the Two Step)