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20.4.2018 - Upgrade AV300ac - currently installed experiments and handling

After a trial period, we would like to inform you about the current setup and possibilities of the AV300ac spectrometer (lab 212A inorganic chemistry). There were various upgrades, and

Dear users,

after a trial period, we would like to inform you about the current setup and possibilities of the AV300ac spectrometer (lab 212A inorganic chemistry). There were various upgrades, and therefore, we will detail a summary below:

(1) as of now, experiments for all (actually some more) X nuclei, that were installed on that spectrometer in the past, are accessible again. Please, check out the list attached to this E-Mail (which is also available on-site in the NMR lab). Experiments, that are only accessible for night (and weekend) shifts are labelled with a little moon symbol.

(2) 2D experiments on this robot-operated instrument have been updated, they now use non-uniform sampling technology. This means, that you can sample more scans within the same time - all 2D spectra are now recorded with at least twice the number of scans as in the past. What you need to know, however, is that all spectra need to be re-processed once you analyze them (xfb in most cases, or xfb+xf2m for HMBC). Phase-sensitive experiments need a phase correction (xfb, xht2 and xht1, then normal phasing is possible). Just ignore the message "No license available for 2D NUS processing", any TopSpin version starting from TS 3.5 will work.

(3) You may modify parameters which are printed in bold in the attached list of experiments (e.g. offsets and spectral width). Also, if you want to set up two consecutive experiments with different offsets, please, enter the offsets in the offset field by typing both offsets separated by a slash (e.g. 150/-250). Please, only use integer values when editing parameters.

For certain constellations, there might still occur problems - if you encounter such a case, please inform us immediately, we will try to fix that asap.

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