Practice time! Identify the Peaks and Structure H-C=C-CH2CH2CH3 LOD HAI D 4000 NH2 OH 3000 2000 1500 1000 500 HAVENUMBERI-11 Table L1.2: Characteristic IR Absorption Frequencies Bond Description Example (R=H or alkyl) Absorption Range (cm³) alcohol O-H R- H- alkyne 3200-3650 (broad, strong) 3260-3330 CSp-H R- R amine 3100-3500 N-H alkene R H 3050-3150 Cop2-H R alkane 2840-3000 R -H Cup 3-H (strong) alkyne 2100-2260 C=C R- -R carbonyl C=O 1690-1760 (strong) R R R alkene 1620-1680 C=C cm-1 R alcohol 1000-1260 C-O R3C OH

Organic Chemistry
9th Edition
ISBN:9781305080485
Author:John E. McMurry
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Chapter13: Structure Determination: Nuclear Magnetic Resonance Spectroscopy
Section13.SE: Something Extra
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Practice time! Identify the Peaks and Structure
H-C=C-CH2CH2CH3
LOD
HAI
D
4000
NH2
OH
3000
2000
1500
1000
500
HAVENUMBERI-11
Transcribed Image Text:Practice time! Identify the Peaks and Structure H-C=C-CH2CH2CH3 LOD HAI D 4000 NH2 OH 3000 2000 1500 1000 500 HAVENUMBERI-11
Table L1.2: Characteristic IR Absorption Frequencies
Bond
Description
Example
(R=H or alkyl)
Absorption
Range (cm³)
alcohol
O-H
R-
H-
alkyne
3200-3650
(broad, strong)
3260-3330
CSp-H
R-
R
amine
3100-3500
N-H
alkene
R
H
3050-3150
Cop2-H
R
alkane
2840-3000
R
-H
Cup 3-H
(strong)
alkyne
2100-2260
C=C
R-
-R
carbonyl
C=O
1690-1760
(strong)
R
R
R
alkene
1620-1680
C=C
cm-1
R
alcohol
1000-1260
C-O
R3C OH
Transcribed Image Text:Table L1.2: Characteristic IR Absorption Frequencies Bond Description Example (R=H or alkyl) Absorption Range (cm³) alcohol O-H R- H- alkyne 3200-3650 (broad, strong) 3260-3330 CSp-H R- R amine 3100-3500 N-H alkene R H 3050-3150 Cop2-H R alkane 2840-3000 R -H Cup 3-H (strong) alkyne 2100-2260 C=C R- -R carbonyl C=O 1690-1760 (strong) R R R alkene 1620-1680 C=C cm-1 R alcohol 1000-1260 C-O R3C OH
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