Instruments

[Varian VNMRS 500 MHz] [Bruker AvanceIII 400 MHz] [Varian Mercury 300 MHz]

The instruments are located in two buildings. The 500 and 300 are in room 335 of the Chemistry Building, and the 400 and data processing computer are in room 151 of the Physical Sciences Building. Both rooms remain locked at all times, each research group receives a group key which must be shared by the authorized users. If you are intersted in becoming a user, please see training.

Important note: The temperature limits in the tables below are hardware specifications. All of our instruments are hooked up to compressed air as opposed to nitrogen. Running at extreme low or high temperatures can damage the probe. Should you need to do variable temperature NMR please contact me.


Varian VNMRS 500

Magnet Oxford 11.7T 51mm Unshielded
Probles Type Nuclei Sensitivity* Temp Range Remarks
AutoX 5mm
(default probe)
15N-31P{1H-19F} 1H: 361 19F: #
13C: 104 31P: #
15N: #
-80oC to 120oC pfg / autotune
Triax Triple Resonance 5mm (12mm RF coil) 1H{13C/15N} 1H: # 13C: #15N: # 0oC to 50oC XYZ pfg (console only two channels with z-axis gradient)
Dual 5mm 13C{1H} 1H: # 13C: # pfg
Broadband 10mm 15N-31P{1H-19F}
H/F 4mm Nanoprobe 1H-19F pneumatics and tachometer not installed
Gradiant z-axis only (60 G/cm)
Computer Dell 390N running Red Hat Linux 4u3
Software Varian VNMRJ 2.2C with DOSY package
Additional Equipped with Varian ProTune, variable temperature bucket, anti-vibration table
[Back to top]

Bruker AvanceIII 400

Magnet Bruker 9.4T 54mm UltraShield
Channels 2
Probe Type Nuclei Sensitivity* Temp Range Remarks
BBO 5mm 15N-31P{1H-19F} 1H: # 19F: #
13C: # 31P: #
15N: #
-80oC to 120oC pfg / autotune
Gradient z-axis only (60 G/cm)
Computer HP running Windows XP
Software Bruker Topspin 2.1
Additional Anti-vibration legs
[Back to top]

Varian Mercury 300

Magnet Oxford 7T 89mm (wide bore) Unshielded
Channels 2
Probe Type Nuclei Sensitivity* Temp Range Remarks
AutoSwitchable 5mm (4-nuc mode) 1H/19F/13C/31P 1H: 134 19F: 117
13C: 41 31P: 76
-80oC to 130oC pfg
Gradient z-axis only (30 G/cm)
Computer Dell 390N running Red Hat Linux 4u3
Software Varian VNMRJ 1.1D
Additional Variable temperature bucket, anti-vibration legs
[Back to top]

*: sensitivity represents the signal:noise (#:1) calculated by the acquistion software using the standard experimental parameters found in the sn.par files included in VNMRJ. The displayed values are the averages from five acquisitions. The following standards were used:

  • 1H – 0.1% Ethylbenzene in CDCl3
  • 19F – 0.05% Trifluorotoluene in C6D6
  • 13C – 40% p-Dioxane in C6D6
  • 31P – 0.0485 M Triphenylphosphate in CDCl3
  • 15N – 90% Formamide in DMSO-d6