Carbon NMR Absorptions

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21 Terms

1
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-CH3 (1º Carbon)

0-35 ppm

2
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-CH2 (2º Carbon)

15-55 ppm

3
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-CH (3º Carbon)

25-55 ppm

4
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R-C

30-40 ppm

5
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C-X (Cl, Br, N)

10-65 ppm

6
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C-Cl

~45 ppm

7
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C-Br

~34 ppm

8
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C-I

~7 ppm

9
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C-NH2

~42 ppm

10
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C-O-H (alcohol)

~63 ppm

11
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C-O (ethers, alcohols)

50-90 ppm

12
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R-C≡C

70-90 ppm

13
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R-C=C

80-150 ppm

14
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Aromatic rings

110-170 ppm

15
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Ester

165-175 ppm

16
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Carboxylic Acid

175-185 ppm

17
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Aldehyde

190-200 ppm

18
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Carbonyl group

200-220 ppm

19
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C≡N (Nitrile)

110-140 ppm

20
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C=N (Imine)

150-170 ppm

21
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Amide

155-185 ppm