IR Spectroscopy
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20 Terms
1
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sp3 C-H stretch
2800-3000
2
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sp2 C-H stretch
3000-3100
3
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sp C-H stretch
3300, sharp
4
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Alcohol stretch
3500, broad/obvious
5
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N-H stretch
around 3300
6
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Primary amine (NH2) stretch
2 stretches around 3300
7
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Secondary amine (-NHR) stretch
1 stretch around 3300
8
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Tertiary amine (-NR2) stretch
None
9
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Ignore regions under ____
1500
10
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Ester stretch
1740
11
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Aldehyde stretch
1725 + 2 peaked, C-H stretch around 2700-2800
12
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Carboxylic Acid stretch
1710 + OH stretch
13
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Ketone stretch
1710
14
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Amide stretch
1650 + N-H stretches
15
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Carbonyl stretch
1700, strong/sharp
16
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Imine (C=N) stretch
~1600+
17
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Alkene C=C stretch
1600
18
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Aromatic alkene stretch
1500-1600 (due to conjugation)
19
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C≡C stretch
Just below 2200
20
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C≡N (nitrile) stretch
Just above 2200
Note 
Flashcards (70)