SNS - Organic Chemistry - NMR and IR Flashcards by emily groves

Q

Infrared

Absorption Peaks

Alkynes

A

≡C-H = 3080-3140
C≡C = 1645

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Q

1H NMR

CHemical Shifts

ArOH

A

4-12

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Q

Infrared

Absorption Peaks

Carboxylic Acids

A

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

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Q

1H NMR

CHemical Shifts

-CHOH / -CHOR

A

3.4-4

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Q

Infrared

Absorption Peaks

Alcohols

A

O-H = 3100-3500

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Q

1H NMR

CHemical Shifts

-CH=CH

A

4.6-6

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Q

1H NMR

Chemical Shifts

Order:

-

A

RCH3
-NH2
-CHOH-CH2OH
RCH2
R3CH
RCHCO-
-CHCOOH / -CHCOOR
-C≡CH
-CHX
-CHOH / -CHOR
ArOH
-CH≡CH
Ar-H
RCHO
-COOH

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Q

Infrared

Absorption Peaks

Ketones

A

C=O - 1700-1750

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Q

1H NMR

CHemical Shifts

-CHPH-CH2OH

A

1-5.5

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Q

1H NMR

Chemical Shifts

-C≡CH

A

2-3

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Q

Infrared

Absorption Peaks

Amines

A

N-H - 3100-3500

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Q

1H NMR

Chemical Shifts

RCH3

A

0.9

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Q

1H NMR

CHemical Shifts

-NH2

A

1-5

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Q

Infrared

Absorption Peaks

Alkanes

A

C-H = 2800-3000
C-C = 1200

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Q

1H NMR

CHemical Shifts

Ar-H

A

6-8.5

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Q

1H NMR

CHemical Shifts

-COOH

A

10.5-12

Q

1H NMR

CHemical Shifts

-CHCOOH / -CHCOOR

A

2-2.6

Q

1H NMR

CHemical Shifts

R3CH

A

1.5

Q

1H NMR

CHemical Shifts

RCHO

A

9-10

Q

Infrared

Absorption Peaks

Aromatic

A

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

Q

1H NMR

CHemical Shifts

-CHX

A

2-4.5

Q

1H NMR

CHemical Shifts

RCH2

A

1.25

Q

1H NMR

CHemical Shifts

RCHCO-

A

2-2.5

Q

Infrared

Absorption Peaks

Ethers

A

C-O = 1050-1150

Q

Infrared

Absorption Peaks

Alkenes

A

=C-H = 3080 - 3140
C=C = 1645

Q

Infrared

Absorption Peaks

Aldehydes

A

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