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Observing a X nucleus for the first time

PRELIMINARY SET-UP PARAMETER SET
Create a new dataset with .

Read the standard parameter set to record, for instance, a conventional 1H-coupled 11B spectrum with rpar B11ZG all (the pulse program zg can be displayed with the command edcpul). If 1H-decoupling is desired, change the pulse program to zgpg.

MODIFY SPECIFIC PARAMETERS

In the edasp window, select the X nucleus in the f1 channel (and 1H in the f2 channel if required).

Tune and match the probehead for the X (and 1H) nucleus. If the tuning and matching values are not available, these can be roughly set from other already-defined near resonating nuclei.

By default, set the following parameters to: ns=1, ds=0, d1=1, and td=64k (set o2 to the center of the 1H spectrum if 1H-decoupling is applied). Use a short hard X pulse (for instance, p1=5-10 microseconds and pl0=0) and a large sw value to see an efficient bandwith.

ACQUISITION
PROCESSING
PLOT
OBSERVATIONS
Once the NMR signal has been detected, the 90 degree X pulse must be calibrated using the AU paropt program (the p1 value must be varied). Use a long d1 value if required.

(au_zg)) (proc_1d).

OTHER RELATED VERSIONS