IR spectroscopy wavenumbers

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20 Terms

1
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O-H

3600-3200 (strong, broad)

2
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Carboxylic acid O-H

2200-3600 (very broad)

3
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Primary N-H

3300-3500 (2 signals)

4
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Secondary N-H

3300-3500 (1 signal)

5
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Alkyne C-H (sp)

3300 (strong)

6
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Alkene C-H (sp2)

3000-3100

7
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Alkane C-H (sp3)

2850-3000

8
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Carbonyl C-H

2750 and 2850 (2 signals)

9
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Carbonyl carbon (C=O)

1650-1820 (strong)

10
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C=C

1600-1700

11
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Aromatic

1450-1600, 1650-2000

12
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C-C triple bond

2100-2200

13
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C-N triple bond

2200-2300

14
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Anhydride C=O

1820 and 1760

15
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Acid chloride C=O

1790

16
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Ester C=O

1735

17
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Aldehyde C=O

1730

18
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Ketone C=O

1720

19
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Carboxylic acid C=O

1715

20
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Amide C=O

1650