
New TopShim run:

version = topshim 2.4.0
date = 2026-10-26
time = 14:02:58.503
command = topshim  convcomp ordmax=4

FINE SHIMMING

Parameters:

probe = Z104275_0310
solvent = CDCl3
shim nucleus = 2H
nucleus optimised for = 1H
o1p (from lock) = 7.24 ppm

Results:


1D Shimming:
Low S/N encountered. The acquisition parameters will be changed to improve this issue.
echo time must be reduced
Iteration  1: FWHM Before=15.7 Hz, Target= 0.2 Hz, After= 3.5 Hz
Iteration  2: FWHM Before= 3.5 Hz, Target= 4.4 Hz, After= 5.0 Hz
Iteration  3: FWHM Before= 5.0 Hz, Target= 0.3 Hz, After= 1.8 Hz
Iteration  4: FWHM Before= 1.8 Hz, Target= 0.7 Hz, After= 2.5 Hz
Iteration  5: FWHM Before= 2.5 Hz, Target= 0.3 Hz, After= 2.0 Hz
Iteration  6: FWHM Before= 2.0 Hz, Target= 1.9 Hz, After= 1.4 Hz
Iteration  7: FWHM Before= 1.4 Hz, Target= 0.8 Hz, After= 1.0 Hz
Iteration  8: FWHM Before= 1.0 Hz, Target= 0.6 Hz, After= 0.8 Hz
Using the best result as the final shim state.

Lineshape quality factor (1D spectrum, spinning) = 2.24

shim changes: 
Z	-1019
Z2	+1761
Z3	-7201
Z4	+16298

duration = 5 min 34 sec
completed successfully
finished Mon Oct 26 14:08:31 2026


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