SNS - Organic Chemistry - NMR and IR Flashcards Preview

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Flashcards in SNS - Organic Chemistry - NMR and IR Deck (26):
1

Infrared

Absorption Peaks

Alkynes

  • ≡C-H = 3080-3140
  • C≡C = 1645

2



1H NMR

CHemical Shifts

ArOH

4-12

3

Infrared

Absorption Peaks

Carboxylic Acids

  • C=O - 1700-1750
  • O-H = 2900-3300

4


1H NMR

CHemical Shifts

-CHOH / -CHOR

3.4-4

5

Infrared

Absorption Peaks

Alcohols

  • O-H = 3100-3500

6


1H NMR

CHemical Shifts

-CH=CH

4.6-6

7

1H NMR

Chemical Shifts

Order:

-

  1. RCH3
  2. -NH2
  3. -CHOH-CH2OH
  4. RCH2
  5. R3CH
  6. RCHCO-
  7. -CHCOOH / -CHCOOR
  8. -C≡CH
  9. -CHX
  10. -CHOH / -CHOR
  11. ArOH
  12. -CH≡CH
  13. Ar-H
  14. RCHO
  15. -COOH

8


Infrared

Absorption Peaks

Ketones

  • C=O - 1700-1750

9


1H NMR

CHemical Shifts

-CHPH-CH2OH

 

1-5.5

10


1H NMR

Chemical Shifts

-C≡CH

2-3

11

Infrared

Absorption Peaks

Amines

  • N-H - 3100-3500

12


1H NMR

Chemical Shifts

RCH3

0.9

13


1H NMR

CHemical Shifts

-NH2

 

1-5

14


Infrared

Absorption Peaks

Alkanes

  • C-H = 2800-3000
  • C-C = 1200

15


1H NMR

CHemical Shifts

Ar-H

6-8.5

16


1H NMR

CHemical Shifts

-COOH

10.5-12

17



1H NMR

CHemical Shifts

-CHCOOH / -CHCOOR

2-2.6

18



1H NMR

CHemical Shifts

R3CH

1.5

19



1H NMR

CHemical Shifts

RCHO

9-10

20

Infrared

Absorption Peaks

Aromatic

  • C-H = 2900-3100
  • C-C = 1475-1625

21



1H NMR

CHemical Shifts

-CHX

2-4.5

22


1H NMR

CHemical Shifts

RCH2

1.25

23



1H NMR

CHemical Shifts

RCHCO-

2-2.5

24

Infrared

Absorption Peaks

Ethers

  • C-O = 1050-1150

25


Infrared

Absorption Peaks

Alkenes

  • =C-H = 3080 - 3140
  • C=C = 1645

26


Infrared

Absorption Peaks

Aldehydes

 

 

  • (O)C-H - 2700-2900
  • C=O - 1725-1750

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