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Orgo 2 IR Spec

Infrared Spectroscopy

TermDefinition
C-C single bond 1200 (Fingerprint)
Isolated C-C double bond 1640-1680
Terminal C-C triple bond <2200
Conjugated C-C double bond 1640-1640
Aromatic C-C double bond ~1600
Internal C-C triple bond Peak absent
Alcohol O-H 3300, broad
Acid O-H 3000, broad
Primary Amine, -NH2 3300, broad, two spikes
Secondary Amine, -NHR 3300, broad, one spike
Tertiary Amine, -NRR' No N-H peak
Ketone 1710, strong
Aldehyde 1725, strong, w/ C-H peak @ 2700-2800
Carboxylic Acid 1710, strong w/ broad O-H peak @ 2500-3500
Carboxylic Ester ~1735, strong
Strained Ketone >1780, strong
Amide 1640-1680, strong
Conjugated Ketone/Aldehydes/Benzoic Acid 1680-1690, strong
C-N single bond ~1200 (Fingerprint)
C-N double bond ~1660
C-N triple bond >2200
Fingerprint Region 600-1400
Created by: jawhoon