hncacb3d processing with SYBYL

From: Wei Wycoff (WycoffW@missouri.edu)
Date: Sun Sep 10 2000 - 20:56:40 PDT


Dear all,

We have collected a set of 3d data using Bruker web-posted hncacb3d pulse
sequence. Both the 15N and 13C planes look fine on the spectrometer. We
are trying to process the data using SYBYL software as what we always do as
off-line processing. This is the first time we used Bruker sequence for
this kind of 3d work, and we have problem with 15N dimension which is phase
sensitive using echo/antiecho gradient selection.

In SYBYL we have tried to convert the data by choosing Buker as the data
source, the resulting 1H spectra of the 1st FID doesn't look right at all.
The water peak is not at the center and the NH protons are on the right
hand side of the water.

In SYBYL we have also tried to modify the ipb.i file to convert data from
Bruker to SYBYL format. First 1H spectra seems OK, but the 1H-15N plane
doesn't look right.

Could anyone with experence processing Bruker 3d data with SYBYL help us?
Any suggestions and hints are welcome.

Thanks in advance!

Wei
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Wei Wycoff
125 Chemistry Building
601 S. College Ave.
Department of Chemistry
University of Missouri-Columbia
Columbia, MO 65211-7600

Voice: (573) 882-3291
Fax: (573) 882-2754
Email: WycoffW@missouri.edu

http://chem.chem.missouri.edu/nmr/nmr.html

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