Organic II Exam One- IR and NMR

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Last updated 8:13 PM on 5/13/26
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21 Terms

1
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IR Aldehyde (R-CH=O)

2700 and 2800

2
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IR Carbonyl (C=O)

1710-1750

3
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IR sp² C=C

1660

4
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IR Alcohol (OH)

3200 - 3600

5
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IR Amine (N-H)

3300 - 3500

6
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IR Amide (R-CN=O)

1650 - 1700

7
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IR Conjugated Carbonyl

below 1700

8
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IR Unconjugated Carbonyl

<1700

9
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IR sp³ C-C

1200

10
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IR sp C triple bonded C

<2200

11
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IR sp³ C-H

2800-3000

12
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IR sp² C-H

3000 - 3100

13
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IR sp C-H

3300

14
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NMR C-CH3

2.1 ppm

15
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NMR C triple bond CH

2,5 ppm

16
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NMR CH2-X

3-4 ppm

17
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NMR C=C-H (vinyl)

5-6 ppm

18
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NMR C=C-CH3 (allylic)

1.7 ppm

19
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NMR Ph-H

7-8 ppm

20
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NMR R-CH=O (Aldehyde)

9-10 ppm

21
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Deshielded=less protected and electronegative

Downfield