orgo 2 functional groups in IR spectroscopy

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Last updated 8:59 PM on 7/12/26
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14 Terms

1
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alcohol OH

broad signal around 3200-3600

2
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carboxylic acid OH

very broad, 2200-3600

3
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N-H

one or two signals, weak-moderate intensity around 3350-3500

4
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sp C-H (alkynes)

appx. 3300

5
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sp² C-H

may be weak intensity, 3000-3100

6
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sp³ C-H

usually shows multiple strong signals, 2850-3000

7
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the C-H in an aldehyde

two weak signals, 2750-2850

8
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C-C triple bond

2100-2200

9
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C-N triple bond

2200-2300

10
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ester (C-O)

appx. 1735

11
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aldehyde (C-O)

appx. 1730

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ketone (C-O)

appx. 1720

13
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carboxylic acid (C-O)

appx. 1715

14
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amide (C-O)

appx. 1650