for Remote Processing/Printing Gemini NMR Spectra
I. From the Gemini Console (Always Insert the floppy with Label Side Facing Up and push the Drive
Lock Latch Down.)
A. Format a 5 1/4" floppy on the Gemini console, if an extra formatted disk is not available
1. The format command is dangerous; therefore, there will always be extra formatted floppies available.
2. Nevertheless, the command is: FORMAT(DSK5); if the format command is issued for other disks the NMR software will be erased and the instrument will not function. Never remove floppy until light floppy light is out and screen message says: Floppy Disk Formatted and Initialized.
B. Save spectra to a formatted 5 1/4 " floppy and take the disk to the Compaq work station. The following command saves data to the floppy which is designated DSK 5 by the Gemini software. Note the period between DSK5 and the FID file name
1. SVF(DSK5.MyNMR), where MyNMR is the name of the file to be saved.
2. To view a spectrum on the Gemini again use the following command but it can never be done this after the data has been processed by Vhelper. RT(DSK5.MyNMR). File names may not exceed 6 digit or beginning with a numerical digit. Proper use of 5 1/4-inch floppy disks
II. Processing from the Work Station Console (on a mobile cart with the CRT, CPU, Keyboard, mouse, and printer. The CPU has a 5 1/4" and 3 ½" floppy as well as a CD ROM drive, 500 MByte Hard Drive, 16 MBytes memory, and 100 MByte Zip drive). Old technology is required for NMR data from Varian's Gemini NMR.
A. Place the Gemini floppy into 5 1/4" drive labeled "B" and convert the FID to DOS data. Go to DOS prompt and CD/Vhelper. Use the command VAR2CDFF /B DSK5.MYNMR c:/NMR. If the wrong name is give the system fails and restart DOS. A simpler process is described under the following paragraph.
B. To avoid typing the above first open the DOS screen and then type NMR to open a macro (actually a DOS batch file) and enter the 6-digit file name. A second prompt reminds to enter the file name, exactly. The converted DOS file will have the same name with an extension (.DAT). A second BAT file called NMR1 will not exit from DOS after a single conversion. These files are ready to be processed by ADC SpecManager. Other NMR processing software includes: MestRe Nova (Mnova), for Windows, Mac OS X and Linux and SpinWorks from U Manitoba is also available with thanks to Kirk Marat. All programs allow remote processing of NMR data.
C. The converted data is automatically placed on the Hard Drive under the C: directory under C:\NMR. There are a couple of DOS program that may be useful when searching for files. They are DirMagic or V for Valet, and Explorer is used to move files. Type Exit to terminate the DOS screen. If the Gemini file name is forgotten use the DOS screen and type DCT /b to obtain a listing of file name in 12 columns (the file names are in the 1st and 7th column).
III. Printing and Processing Spectra Data from the Compaq Computer with the HP DeskJet 895C color printer. Take data back to desk top computer by first opening ADC Windows program to process NMR called SpecManager. It is a windows desk top icon. Select File and Import to bring the DOS Gemini file into the SpecManager, from the C:\NMR directory. Then either use a macro called Keith or perform the following operations, step wise: Fourier Transformation, Phase Correction, Auto Simple, Process, Reference Manual or Auto, Peak Picking/Level, and Auto/Manual Integration. Print as much or as little of the information and save the data to a 3 ½" floppy disk or to a 100 Mbyte Zip disk. There is a log book to record the user name and a list the spectra names. All files will be archived to a Zip drive. All files will be moved from the active directry to the user sub-directory. Old files will be removed after a few weeks.
IV. From the Unity 400 FTP data is copied to a desk computer onto a floppy.
Return to Instrumentation or Teaching Instruments