Instruments

NMR data in the spectrometers can be accessed directly from the lab's workstations for off-line processing an plotting. User's data can also be downloaded via sftp but only from within the Chemistry Department and a few selected University locations.

Varian Vnmrs 700 (Ytterbium)

700 MHz (17.6 Tesla) Premium Shielded Magnet.
One high band and two low band radio frequency channels; 14 bit 80 MHz ADC provides effective 20 bit dynamic range at 10kHz spectral width.
Antivibration legs system.
Waveform generator in all channels for shaped pulses.
Temperature range: -150° to 150° C (see below for probe specs).
Pulsed Field Gradient (62 G/cm).
Dual Channel ProTune module.
Variable temperature preconditioning unit controls temperature from -40° to +100° C.Typically used for long term experiments, H/C/X triple resonance experiments and biomolecular experiments.
Installed March 2011.

Varian 5 mm PFG AutoX Broadband Probe (default)

Frequency range: H1 / N15-P31
Temperature range: -80° to +130°
CSensitivity: H1=620, C13=445, P31=250, N15=50
Other features: auto tunable

Varian 5 mm PFG H{C/N} Triple Resonance AutoX Probe

Frequency range: H1 {C13/N15}
Temperature range: -20° to +80° C
Sensitivity: H1=1720, C13=210
Other features: auto tunable (proton channel only)

Varian Vnmrs 600 (Neodymium)

600 MHz (14.1 Tesla) Premium Shielded Magnet
Two radio frequency channels
Antivibration legs system
Waveform generator for shaped pulses
Temperature range: -150 to 150 C (see below for probe specs)
Pulsed field gradient (62 G/cm)
Dual channel ProTune module
Located in room 3411A and used for both routine and long term experiments.
Refurbished: Sep 2020

Varian 5mm PFF AutoX Dual Broadband probe

Frequency range: H1-F19 / N15-P31
Temperature range: -80 to +130 C.
Sensitivity: H1=520 , F19=636 , C13=376, N15=35, P31=180
Other features: auto tunable

Bruker Avance Neo 500 (Carbon)

Ascend 500 MHz/54 mm long hold time magnet (11.76 Tesla)
Two radio frequency channels
10 A Gradient amplifier
Antivibration legs
BSVT Variable Temperature Control and BCU II unit
SampleCase Plus 60
Installed: December 2021

Prodigy BBO (Default probe)

Sensitivity: H1=1568, F19=1786, C13=843, N15=90, P31=580
Frequency range: H1-F19 / N15-B10, Se77-P31
Temperature range: -40 to +150 C.
Z gradient with 60 G/cm
Automated tuning and matching

iProbe SmartProbe BBO

Sensitivity: H1=885, F19=497, C13=348, N15=47, P31=345
Frequency range: H1 / F19-Hg199, O17-Ag109
Temperature range: -150 to +150 C.
Z gradient with 50 G/cm
Automated tuning and matching

Varian Vnmrs 500 (Tellurium)

500 MHz (11.7 Tesla) Premium Shielded Magnet.
Two high band and one low band radio frequency channels; 14 bit 80 MHz ADC provides effective 20 bit dynamic range at 10kHz spectral width.
Antivibration legs system.
Waveform generator in all channels for shaped pulses.
Temperature range: -150° to 150° C (see below for probe specs).
Pulsed Field Gradient (62 G/cm).
Dual Channel ProTune module.
Variable temperature preconditioning unit controls temperature from -40° to +100° C.Typically used for long term experiments and H/F/X triple resonance experiments.Installed: May 2010.

Varian 5 mm PFG OneNMR Probe (default)

Frequency range: H1-F19/ N15-P31
Temperature range: -80° to +130° C
Sensitivity: H1=660, F19=850, C13=260, P31=188, N15=27
Other features: auto tunable

Varian 5 mm PFG H/F{X} Triple Resonance AutoX Probe

Frequency range: H1/F19/ {N15-P31}
Temperature range: -80° to +130° C
Sensitivity: H1=734, F19=750, C13=136
Other features: auto tunable on H1 and X

Varian MR400 (Gallium)

400 MHz (9.4 Tesla) Premium Shielded Magnet.
Two radio frequency channels.
Antivibration legs system.
Waveform generator for shaped pulses.
Temperature range: -150° to 150° C (see below for probe specs).
Pulsed Field Gradient (21 G/cm) .
Dual Channel ProTune module.
Typically used for routine analysis and long term acquisitions. Can detect H1, F19, C13, P31, B11 and other heteronuclei.
Installed: Feb 2008.

Varian 5 mm PFG AutoX Dual Broadband probe (default)

Frequency range: H1-F19 / N15-P31
Temperature range: -80° to +130° C
Sensitivity: H1=306, F19=348, C13=205, N15=21, P31=170
Other features: auto tunable

Varian 5 mm PFG AutoX Indirect Detection probe

Frequency range: H1 {N15-P31}
Temperature range: -80° to +130° C
Sensitivity: H1=660, C13=90
Other features: auto tunable

Varian MR400 (Cobalt)

400 MHz (9.4 Tesla) Premium Shielded Magnet.
Two radio frequency channels.
Antivibration legs system.
Waveform generator for shaped pulses.
Temperature range: -150° to 150° C (see below for probe specs).
Pulsed Field Gradient (21 G/cm).
Dual Channel ProTune module.
Walk-up instrument (no reservations required). Typically used for quick, routine analyses. Can detect only H1, F19, C13 and P31. No tuning required.
Installed: Feb 2008.

Varian autoswitchable probe (quad, default)

Frequency range: H1/F19/C13/P31
Temperature range: -20° to +80° C
Sensitivity: H1=234, C13=142, F19=311, P31=102
Lineshape: 0.29, 2.23, 4.47.
Other features: Z-gradient, 5 mm; no tuning required.

Varian Inova 400 (Zirconium)

400 MHz (9.4 Tesla) Oxford Magnet.
Two radio frequency channels.
TMC antivibration system.
Waveform generator for shaped pulses.
Z-axis pulsed field gradient moduleVariable Temperature unit.
SMS 50 Automatic Sample Changer
This instrument is now located in room 2407 and is used for routine 1D H/C/F/P in the undergraduate labs. Usually available during the summer for research

Varian 4 nucleus Auto·nmr probe (quad4nuc)

Frequency range: H1/F19/C13/P31
Temperature range: -20° to +80°C
Sensitivity: H1=143, C13=108, F19=169, P31=63
Other features: Z-gradient, 5 mm; no tuning required

Data stations

Five Hewlett-Packard Z420 computers, 3.6 GHz with Red Hat Enterprise Linux and Vnmrj 4.2. A licensed copy of MestReNova is available in one of the workstations.

For questions contact Eugenio Alvarado
Squid operating instructions [Adobe Acrobat Reader "pdf" file]

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