530 likes | 626 Views
13 C NMR. C=O CN. Bromophenoles. Operating frequencies. Chloroform. 13 C Correlation Chart. 1 H Chemical shift overview. Carbon-proton correlation. Typical 13 C Chemical shifts. Carbonyl chemical shifts. Substituent effects for alkanes. Substituent increments for benzene derivatives.
E N D
13C NMR • C=O • CN
Couplings to other nuclei • 19F • 31P • 13C?
Coupling constants • One bond 1J • Two bond (geminal) 2J • Three bond (vicinal) 3J • Long range nJ
2J • Ring size