Dear All NMR experts,
I would like to ask for your expertise to help me solve a puzzle.
We have synthesized a new cobaloxime compound, and there is a strange peak
appears on the simple 1D C13 spectra at 110ppm. we have assigned the rest
of carbon peaks. The strange peak should be the Carbon on the ring around
the Co (which should not be paramagnetic), however the carbon peak present
as a group of multiple peaks and with both positive and negative
intensities. What could be possible reason to impact that C13 signal？
anyone has seen such effect previously?
I have a PDF document for the spectra and the compound, I would be more
than happy to email you if you would like to take a look.
Thanks
Jennifer
Received on Fri Jan 11 2013 - 10:22:11 MST