Acknowledgement of Financial Support - Instrument Purchase
"Purchase of the AVIII 600 NMR spectrometer used to obtain results included in this publication was supported by the ISU Foundation and the College of Liberal Arts and Sciences."
Acknowledgement of CIF Staff Assistance
"We wish to thank ISU Chemical Instrumentation Facility staff members <insert name(s) here> for training and assistance pertaining to the AVII-600 results included in this publication."
Experimental Section & Publication Information
The AVIII 600 NMR spectrometer features a standard bore 14.1 tesla superconducting magnet and an Avance III spectrometer console from Bruker Corporation (Billerica, MA and Karlsruhe, Germany). The spectrometer uses a BCU-II for low temperature experiments. The amount of additional experimental detail necessary will depend upon whether you are preparing a manuscript, a poster, a presentation, or including the information in your thesis.
The AVIII 600 is operated using Topspin 3.6. Every data file acquired with Topspin has associated files with many of the relevant parameters from the acquisition. This data file can be accessed by opening the associated files in a text editor, or through Topspin by loading the file and typing the command dpa<enter>. The dpa file typically does not contain information about the temperature or MAS spinning speed at which the data was acquired.
For measurements on the AVIII 600, this data file may include:
- Pulse sequence
- Number of scans (ns)
- Acquisition time (aq)
- Recycle delay (d1)
- Pulse lengths in microseconds (typically conveted to kHz for publication - i.e. 5 us = 50 kHz pulse)
The spectrometer frequencies for many typical nuclei are as follows:
- 1H = 600.16 MHz
- 31P = 242.95 MHz
- 13C = 150.91 MHz
- 2H = 92.13 MHz
- 15N = 60.81 MHz
There are two probes available for the AVII-600:
- 5 mm QCI-P solution cryoprobe 2H/13C/1H/15N or 31P with extended temperature range of 0-135 °C.
- 5 mm liquids four-channel 2H/13C/1H/BB TBI probe.