I guess the B11 spectrum needed more first order phase correction than I
expected. After I rephased the spectrum, it looks fine. The two main peaks
and sidebands are all standing up, with a curly baseline plus a little bit
"heavy-peak" syndrome. Thanks to Alan Olson, Steven Silber, Bob Sato, Tom
Pratum, and Alan M Kenwright who replied to my question and pointed out two
possibilities: too narrow a sweep width and wrong phase correction.
I guess I was afraid of some sort of strange things shown up by the
qudrapolar B11 nucleus in the solid state.
Best Regards,
Jiejun
----------
Jiejun Wu NMR Facility Manager
Dept. of Chemistry (949)824-6010 (office)
516 Physical Sciences 1 (949)824-5649 (lab)
Univ. of California, Irvine (949)824-8571 (fax)
Irvine, CA 92697-2025 jwu@uci.edu (internet)