Hello, After reading the Q and A that was dated Oct2011, as an NMR student I ran into a question:

in the answer you read: "The 13C-19F isotope shift can be fairly large, so the satellites wouldn't be symmetric."

13C-19F isotope shift: they mean satellites dues to 13C-19F coupling, right? So if it is so large, they are not symmetric in Hz scale but symmetric in ppm scale? I can't understand this!

I have seen asymmetric small peaks around 19F-spectrum of perfluorohexane. But I guessed they might be due to some other artifacts!

Thanks for the time, Amin

Hello, After reading the Q and A that was dated Oct2011, as an NMR student I ran into a question:

in the answer you read: "The 13C-19F isotope shift can be fairly large, so the satellites wouldn't be symmetric."

13C-19F isotope shift: they mean satellites dues due to 13C-19F coupling, right? So if it is so large, they are not symmetric in Hz scale but symmetric in ppm scale? I can't understand this!

I have seen asymmetric small peaks around 19F-spectrum of perfluorohexane. But I guessed they might be due to some other artifacts!

Thanks for the time, Amin