To Tedd C. Wiessner
Click the “Calibrate” button to correct the chemical shift,
and enter the expected 29Si chemical shift on the 2D spectrum to apply the
correction. If you want to fine-tune the chemical shifts, measure the HMBC of
TMS and set the 1H and 29Si chemical shifts to 0 ppm using the method described
above. Then, for future measurements, you can simply copy this spectrum
using “Use Current Parameters” to create a new file and
perform the measurement.
Takahiro Kusukawa
Kyoto Institute of Tecnology
Hi All,
We are trying to implement a silicon-HMBC experiment and are having trouble
getting the Si-axis to be in the range we want.
The sweep width we were going for was 200 ppm centered at -40 ppm, but the
spectra we keep getting are labeled as ranging from 960,777 to around 960,384 ppm
(SW~400 ppm). Does anyone have any ideas why this is happening and how to fix it?
I feel like I am missing something simple but am at a loss.
For reference, the spectrum below is of tetraethoxy silane (~-81.8 ppm).
Thanks!
Best,
Tedd
Tedd C. Wiessner, PhD
Senior Scientist I, Pathways Manager, Analytical Lab | H.B. Fuller Company
1200 Willow Lake Blvd | Vadnais Heights | MN | 55110 | USA
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Received on Sun Apr 19 2026 - 07:34:41 MST