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Main IR Frequencies | CHEM 2210 - Organic Chemistry I, Quizzes of Organic Chemistry

Major peaks you need to know in order to identify a compound using IR Spectroscopy. Class: CHEM 2210 - Organic Chemistry I; Subject: Chemistry; University: Xavier University of Louisiana; Term: Fall 2009;

Typology: Quizzes

Pre 2010

Uploaded on 12/09/2009

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TERM 1
3300-3600 Strong and
broad
DEFINITION 1
O-H (alcohol)
TERM 2
2500-3000 Very broad, distorted baseline
DEFINITION 2
O-H (carboxylic acid)
TERM 3
3200-3500
Singlet
DEFINITION 3
N-H
TERM 4
3200-3500 Doublet
DEFINITION 4
NH2 (primary amine or amide)
TERM 5
3300 Sharp and strong
DEFINITION 5
terminal alkyne
pf3
pf4

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3300-3600 Strong and

broad

O-H (alcohol)

TERM 2

2500-3000 Very broad, distorted baseline

DEFINITION 2

O-H (carboxylic acid)

TERM 3

Singlet

DEFINITION 3

N-H

TERM 4

3200-3500 Doublet

DEFINITION 4

NH2 (primary amine or amide)

TERM 5

3300 Sharp and strong

DEFINITION 5

terminal alkyne

3000-3100 Weak, overlaps C-H Absorption

alkene or arene

TERM 7

2800-3000 Strong, broad, multobandrid

DEFINITION 7

sp3 carbons (alkanes)

TERM 8

2220-2250 Medium insenity

DEFINITION 8

cyanido group

TERM 9

2100-2260 Medium intensity

DEFINITION 9

terminal alkynes

TERM 10

2100-2260 Very weak

DEFINITION 10

internal alkynes

690 and 750 Strong

phenyl group