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Instruments

NMR data in the spectrometers can be accesed 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 Ytterbium
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 -80° 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: 1H/ 15N-31P
Temp range: -80° to +130° C
Sensitivity: 1H=620, 13C=445, 31P=250, 15N=50
Other features: auto tunable
Varian 5 mm PFG H{C/N} Triple Resonance AutoX Probe
Frequency range: 1H{13C/15N}
Temp range: -20° to +80° C
Sensitivity: 1H=1720, 13C=210
Other features: auto tunable (proton channel only)



Varian vnmrs 500 (Tellurium)
500 MHz (11.7 Tesla) Premium Shielded Magnet Tellurium
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 -80° 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: 1H-19F/ 15N-31P
Temp range: -80° to +130° C
Sensitivity: 1H=660, 19F=850, 13C=260, 31P=188, 15N=27
Other features: auto tunable
Varian 5 mm PFG H/F{X} Triple Resonance AutoX Probe
Frequency range: 1H/19F/ {15N-31P}
Temp range: -80° to +130° C
Sensitivity: 1H=734, 19F=750, 13C=136
Other features: auto tunable



Varian MR400 (Gallium)
400 MHz (9.4 Tesla) Premium Shielded Magnet Gallium
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 1H, 19F, 13C, 31P, 11B and other nuclei heteronuclei.
Installed: Feb 08
Varian 5 mm PFG AutoX Dual Broadband probe (default)
Frequency range: 1H-19F / 15N-31P
Temp range: -80° to +130° C
Sensitivity: 1H=306, 19F=348, 13C=205, 15N=21, 31P=170
Other features: auto tunable
Varian 5 mm PFG AutoX Indirect Detection probe
Frequency range: 1H {15N-31P}
Temp range: -80° to +130° C
Sensitivity: 1H=660, 13C=
Other features: auto tunable



Varian MR400 (Cobalt)
400 MHz (9.4 Tesla) Premium Shielded Magnet Cobalt
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 
Variable temperature preconditioning unit 
Walk-up instrument (no reservations required). Typically used for quick, routine analyses. Can detect only 1H, 19F, 13C and 31P. No tuning required.
Installed: Feb 08
Varian autoswitchable probe (quad, default)
Frequency range: 1H/19F/13C/31P
Temp range: -20° to +80°C
Sensitivity: 1H=234, 13C=142, 19F=311, 31P=102
Lineshape=0.29, 2.23, 4.47.
Other features: Z-gradient, 5 mm



Varian Inova 500 (Tin)
500 MHz (11.7 Tesla) Oxford Magnet Inova 500
Two radio frequency channels
TMC antivibration system
Waveform generator for shaped pulses
Performa I, Z-axis pulsed field gradient module and automatic  gradient shimming module
Enhanced VT unit with high-stability option and pre-conditioning unit
Typically used for high field proton and heteronuclear spectra and indirect detection 2D techniques.
Varian indirect detection probe (id, default)
Frequency range: 1H{15N-31P}
Temp range: -20° to +50°C
Sensitivity: (5/15/06) 1H=560, 13C=45
Other features: Z-gradient, 5 mm
Varian switchable probe (sw)
Frequency range: 1H-19F/15N-31P
Temp range: -100° to +150°C
Sensitivity: (9/11/06) 1H=290, 13C=256
Other features: Z-gradient, 5 mm



Varian Inova 400 (Zirconium)
400 MHz (9.4 Tesla) Oxford Magnet Inova 400
Two radio frequency channels
TMC antivibration system
Waveform generator for shaped pulses
Z-axis pulsed field gradient module
Variable Temperature unit.
This instrument is now located in room 2407 and is used for routine 1D H/C/F/P in the undergraduate labs.
Varian 4 nucleus Auto·nmr probe (quad4nuc)
Frequency range: 1H/19F/13C/31P
Temp range: -20° to +80°C
Sensitivity (nominal):  1H=143, 13C=108, 19F=169, 31P=63
Other features: Z-gradient, 5 mm



Varian Mercury 200 (Scandium)
200 MHz (4.7 Tesla) "R2D2" Magnet Mercury 200
Two radio frequency channels
SMS 100 Automatic sample changer
Located in room A636-A
Used for undergraduate teaching
Varian switchable probe
Frequency range: 1H-19F/15N-31P
Temp range:
Sensitivity:
Other features: 5 mm



Data stations

Five Hewlett-Packard Z420 computers, 3.6 GHz with Red Hat Enterprise Linux and VNMRJ 3.2. A licensed copy of MestReNova is available in one of the workstations.

SQUID MPMS magnetometer

The SQUID (Superconducting QUantum Interference Device) is located in Chemistry Room 3411c.   This system is known as a MPMS (Magnetic Property Measurement System), with a SQUID detector.   Manufactured by Quantum Design   www.qdusa.com

The DC magnetic field can be run from: -55,000 to 55,000 Gauss (-5.5 to 5.5 Tesla).
The sample temperature can be run from: 1.7 to 400 Kelvin (°K) (-271.6 to 126.7 °C).

For questions contact Chris Kojiro.
Squid operating instructions [Adobe Acrobat Reader "pdf" file]


E. Alvarado. 06/12/13