AMMRL: Help with 13C NMR carbonyl carbons

From: Janet Asper (jasper) <"Janet>
Date: Wed, 20 Jun 2012 11:16:07 -0400

Hi all. I'm one of those "organic professor wearing a NMR manager hat" people at a undergraduate college. We're having some trouble getting 13C NMR on some carbonyl carbons in our research. The carbonyls in question are in highly conjugated systems, and a former colleague thought that the planarity of the systems was part of the problem. The molecules are also attached to good sized polymers.

I've tried the easy solutions of changing delay times and getting more scans, but I've quickly run out of tricks, and am a bit intimidated by diving into the literature and the manuals for the NMR. We have a Bruker Avance 300 MHz, running XWin NMR.

I hate to sound so dumb, but I was trained as more of a NMR user. We didn't get to tinker around much in graduate school, and my teaching role doesn't give me much time to dabble now. I'm looking for someone to collaborate with on getting good spectra of these systems.

Thanks
Janet Asper

PS: For those of the correct age to understand the reference, I've got "Opportunities" by the Pet Shop Boys stuck in my head as I write this.


Janet A. Asper
Associate Professor, Chemistry
University of Mary Washington
1301 College Avenue
Fredericksburg, VA 22401
540-654-1143: 540-654-1081 fax
jasper_at_umw.edu<mailto:jasper_at_umw.edu>
Received on Wed Jun 20 2012 - 05:16:17 MST

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