by rigel


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IR - 3640–3610 cm-1(strong, sharp)
O–H stretch, free hydroxyl -- alcohols, phenols
IR - 3500–3200 cm-1(strong,broad)
O–H stretch, H–bonded -- alcohols, phenols
IR - 3400–3250 cm-1(medium)
N–H stretch -- primary, secondary amines, amides
IR - 3300–2500 cm-1(medium)
O–H stretch -- carboxylic acids
IR - 3330–3270 cm-1(narrow, strong)
–C(triple bond)C–H: C–H stretch -- alkynes (terminal)
IR - 3100–3000 cm-1(strong)
C–H stretch -- aromatics
IR - 3100–3000 cm-1(medium)
C=H stretch -- alkenes
IR - 3000–2850 cm-1(medium)
C–H stretch -- alkanes
IR - 2830–2695 cm-1(medium)
H–C=O: C–H stretch -- aldehydes
IR - 2260–2210 cm-1(medium)
C(triple bond)N stretch -- nitriles
IR - 2260–2100 cm-1(weak)
–C(triple bond)C– stretch -- alkynes
IR - 1760–1665 cm-1(strong)
C=O stretch -- carbonyls (general)
IR - 1760–1690 cm-1(strong)
C=O stretch -- carboxylic acids
IR - 1750–1735 cm-1(strong)
C=O stretch -- esters, saturated aliphatic
IR - 1740–1720 cm-1(strong)
C=O stretch -- aldehydes, saturated aliphatic
IR - 1730–1715 cm-1(strong)
C=O stretch
IR - 1715 cm-1(strong)
C=O stretch -- ketones, saturated aliphatic
IR - 1710–1665 cm-1(strong)
C=O stretch -- alpha,beta–unsaturated aldehydes, ketones
IR - 1680–1640 cm-1(medium)
–C=C– stretch -- alkenes
IR - 1650–1580 cm-1(medium)
N–H bend -- primary amines
IR - 1600–1585 cm-1(medium)
C–C stretch (in–ring) -- aromatics
IR - 1550–1475 cm-1(strong)
N–O asymmetric stretch -- nitro compounds
IR - 1500–1400 cm-1(medium)
C–C stretch (in–ring) -- aromatics
IR - 1470–1450 cm-1(medium)
C–H bend -- alkanes
IR - 1370–1350 cm-1(medium)
C–H rock -- alkanes
IR - 1360–1290 cm-1(medium)
N–O symmetric stretch -- nitro compounds
IR - 1335–1250 cm-1(strong)
C–N stretch -- aromatic amines
IR - 1320–1000 cm-1(strong)
C–O stretch -- alcohols, carboxylic acids, esters, ethers
IR - 1300–1150 cm-1(medium)
C–H wag (–CH2X) -- alkyl halides
IR - 1300–1150 cm-1(medium)
C–H wag (–CH2X) -- alkyl halides
IR - 1250–1020 cm-1(medium)
C–N stretch -- aliphatic amines
IR - 1000–650 cm-1(strong)
=C-H bend -- alkenes
IR - 950–910 cm-1(medium)
O–H bend -- carboxylic acids
IR - 910–665 cm-1(strong, broad)
N–H wag -- primary, secondary amines
IR - 900–675 cm-1(strong)
C–H oop -- aromatics
IR - 850–550 cm-1(medium)
C–Cl stretch -- alkyl halides
IR - 725–720 cm-1(medium)
C–H rock -- alkanes
IR - 700–610 cm-1(strong, broad)
–C(triple bond)C–H: C–H bend -- alkynes
IR - 690–515 cm-1(medium)
C–Br stretch -- alkyl halides
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