Octet

Octet / Carbon NMR Shift Table

C=O (amide)

¹³C NMR: a C=O (amide) carbon appears at δ 160-180 ppm. Lower than ester (resonance).

Carbon NMR Shift Table details

Environment

C=O (amide)

Chemical Shift Range

160-180

Notes

Lower than ester (resonance)

This is one row of the Spectroscopy sheet - print all 19 ¹³C NMR shifts on one page.

Carbon NMR Shift Table

Related Content

13C NMR chemical shift ranges by carbon environment.

R-CH₃

¹³C NMR: a R-CH₃ carbon appears at δ 0-30 ppm. Primary carbon.

R₂CH₂

¹³C NMR: a R₂CH₂ carbon appears at δ 15-55 ppm. Secondary carbon.

R₃CH

¹³C NMR: a R₃CH carbon appears at δ 20-60 ppm. Tertiary carbon.

R₄C

¹³C NMR: a R₄C carbon appears at δ 30-45 ppm. Quaternary carbon.

C-X (halide)

¹³C NMR: a C-X (halide) carbon appears at δ 10-75 ppm. Depends on halogen.

C-O (alcohol, ether)

¹³C NMR: a C-O (alcohol, ether) carbon appears at δ 50-90 ppm.

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