Hello,
I recorded a 2D HN spectrum on Bruker TopSpin 4.1.3 on a 800 MHz spectrometer and when changing the referencing I accidentally set the Spectrometer Frequency SF to 0 Hz in the nitrogen dimension. Now the data cannot be opened and when I try to display it, there is an error message indicating that "Data set doesn't exist, or is not accessible or is corrupt. Illegal parameter value: resolution[2] = -infinity." Does anyone know how can this be fixed ? I cannot correct the SF since the data won't be displayed, so I cannot access the PROCPARS. Is there a command which can change the PROCPARS of a dataset which is not currently displayed on the software ?
Thanks a lot for any advice,
Louis Brigandat
Dear Louis,
you could try navigate to the EXPNO folder where your data is stored and check the acqus/acqu2s files. There should be lines for sf1, sf2, and so on, which you can edit to the correct value.
Hope this helps!
Max
Dear Maximilian,
Thanks a lot for your answer !
I took a look at the acqus, acqu2s files but they had the correct SF. However, I remembered that the problem had arisen after changing the processing parameters, therefore I had a glance at the proc2s and proc2 files and there the SF was set to 0 MHz. I manually edited the files in a text editor and was able to get the SF back to a normal value of 81 MHz. The spectrum was then able to be opened in TopSpin!
Thanks again,
Louis
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