IR Spectroscopy Notable Peaks

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Description and Tags

Only stretching vibrations above 1600, all peaks in cm^-1

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17 Terms

1
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sp³ C-H

2850-2960

2
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sp² C-H

3000-3100

3
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sp C-H

3300

4
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Aldehyde C-H

2700/2800

5
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Alkene

1640-1680

6
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Alkyne

2100-2260 (medium to weak)

7
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Alcohol

3400-3650 (broad)

8
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Carboxylic Acid O-H

2500-3500 (very broad)

9
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Primary Amine

3400/3300 (weak)

10
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Secondary Amine

3350 (weak)

11
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Aldehyde C-O

1730

12
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Ketone

1715

13
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Carboxylic acid C-O

1710

14
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Ester

1735

15
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Amides

1650

16
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Acid Chloride

1800

17
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Nitrile

2250 (medium)