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Nuclear Magnetic Resonance Lab

NMR Lab The NMR (nuclear magnetic resonance) lab is a facility of the chemistry department; its principal job is to provide access to NMR equipment and techniques for departmental research. It is also available to outside departments within the university, and to a limited degree to external organizations. Some service work is performed, but in most cases users operate the equipment themselves, and generate and process their own data. VI-500 Varian Inova VI-300 Varian Inova VXR-300 Varian Inova VAC-300 Varian Unity, with automatic sample changer VAC-200 Varian Unity, with automatic sample changer

Instruments

  1. Bruker Avance III 500

    The Bruker Avance III 500 was installed in December 2011. It is a fully equipped 3-channel spectrometer with a shielded Ascend magnet. The magnet sits on a TMC vibration table to protect it from vibrations from the light rail.

    There are 2 probes available:

    • 5mm BBFO "SmartProbe" with z-axis gradients (usually in the magnet)
    • 5mm TBO triple resonance PFG probe, capable of C13 detection with simultaneous H1 and F19 decoupling

    Probe changes must be scheduled with the NMR Lab staff.

    Variable temperature (+/- 150C) is available.

  2. VAC-200

    Set up in 1986, the VAC-200 was originally a Bruker AC-200 but was converted to a Varian Unity 200 in 1996. It has an automatic sample changer attached, and runs continually in automatic mode. It has a 4-nucleus probe, which permits H1, F19, P31, and C13 detection. No PFG or VT control available. The experiments available include:

  3. VAC-300

    The former AC-300 was obtained originally from the now-defunct IBM Instruments in 1986; it was upgraded with a Varian Inova console in spring 1996. In January 2000, the console was replaced with a Unity console from the VXR-300. In 2009, the Unity console was replaced with a used Mercury console donated from the Medicinal Chemistry department. The VAC-300 has anautomatic sample changer attached and runs continually in automatic mode. Users place their samples in the rack and set up the desired experiments on the computer.

  4. Varian Inova 300

    The Varian Inova 300 was installed in 1996. Four probes are available:

    • 5mm 4-Nucleus (H1, C13, F19, P31) probe
    • 5mm Broadband X{H} probe (usu. in magnet; X tuned to C13)
    • 5mm H1/F19 probe
    • 10mm Broadband X{H} probe

    Variable temperature (-100C to +100C) is available.
    There are no gradients on this instrument.

  5. Varian Inova 500

    The Varian Inova 500, originally installed in 1989 as a Varian Unity, was upgraded in 1996 with a new console, a third RF channel, PFG (pulsed field gradients), and WFG (wave form generators).

    Several probes are currently available:

    • 5mm H{P-X} triple resonance, Z-axis PFG probe (usually in the magnet)
    • 5mm H{C-X} triple resonance, triple-axis PFG probe
    • 5mm H{X} indirect detection probe
    • 5mm Broadband X{H} probe
    • 10mm Lowband X{H} probe

    Probe changes must be scheduled with the NMR Lab staff.

  6. VXR-300

    The VXR-300 was installed in 1989 as a Varian Unity instrument. The console was upgraded to a Varian Inova console in January 2000. Two probes are available:

    • 5mm H{X} indirect detection, Z-axis PFG
    • 5mm 4-Nucleus (H1, C13, F19, P31) probe with PFG (usually in the magnet)

    Variable temperature is NOT available. There are gradients on this instrument.