We are running DISNMR on an AM500. I need to determine the *absolute*
frequency corresponding to 0 ppm (i.e. 500.1378739478... MHz or whatever)
after the spectrum has been referenced. Is it parameter SF or is it
SF +/- O1 (or possibly something else) ?
Also, what is a good place to find the ratios of resonance frequencies
of different nuclei (in particular, Carbon/Proton) to at least 9 or 10
significant figures ? I looked in the '81 edition of Brevard &
Granger's Handbook, but they don't list carbon and everithing else they
list to 5 or 6 sig. figs.
Thanks in advance; I will post the summary.
--Konstantin Momot
momot@iris100.chem.arizona.edu | Please note my new e-mail address http://www.u.arizona.edu/ | ~momot/research.html |