C-NMR ppm Flashcards
1
Q
What functional group corresponds to a chemical shift of 20 ppm
A
Alkane carbons R3CH
2
Q
What functional group corresponds to a chemical shift of 50 ppm
A
Carbons with heteroatoms X-CR3
3
Q
What functional group corresponds to a chemical shift of 80 ppm
A
Alkyne carbons R-CC-R’
4
Q
What functional group corresponds to a chemical shift of 120 ppm
A
Alkene, Aromatic carbons R2C=CHR ArH
5
Q
What functional group corresponds to a chemical shift of 170 ppm
A
Acid, amide, ester carbons RXC=O
6
Q
What functional group corresponds to a chemical shift of 200 ppm
A
Aldehyde, ketone carbons RR’C=O
