Summary

The Varian MR-400 features a narrow bore 9.4 tesla/400 MHz magnet equipped with a OneNMR pulse-field-gradient probe. VNMRJ 3.0 is used for data acquisition, and the MNova software is typically used for data processing. This instrument is used for routine ¹H/¹³C characterization experiments, routine X nucleus detection, 1D selective experiments (APT, DEPT, NOESY1D) and 2D experiments.  

• The OneNMR probe features autolock and autoshim, and is capable of auto tuning to nuclei from ¹⁵N - ¹⁹F. This probe uses the ¹H channel for ¹⁹F experiments.
• Variable temperature capabilities for experiments in the range of -80 to +130 °C. 

The MR-400 was acquired in 2010, NSF CHE 0946687*

The instrument is located in 1232 Hach Hall.  Enquiries should be directed to Dr. Sarah Cady or Dr. Shu Xu. Phone 515-294-5975 (Hach office/NMR lab), 515-294-4057 (Gilman NMR lab).

Rates

This instrument is intended to be used by students and other researchers. Staff will provide training and some initial methods development assistance, and will configure the instrument and assist with special projects as required.  The hourly rates are listed below.  NOTE:  There is a minimum billable increment of twelve minutes.

MR-400 Resources

• MR400 User Guide - Basic information for running VNMRJ and the MR400. 
• Typical QA/QC Spectra
• Experimental Section and Acknowledgements
• VNMRJ Getting Started Guide - Basic information and commands on getting started using VNMRJ. 
• VNMRJ 3.1 Experiment Guide - PDF containing information on all of the experiments available on the MR400.
• VNMRJ Command and Parameter Reference - All commands in VNMRJ.

*Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation