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Glossary of Spec Chem

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Methyl
Asymmetrical: 2962
Symmetrical: 2872
Methylene
Asymmetrical: 2926
Symmetrical: 2853
Methine
Asymmetrical: 2890
Alkanes CH
Stretching: 3000-2840
Bending 1465-720
Alkenes CH
Stretching: 3300-3000
Bending 1000-650
Alynes CH
Stretching: 3333-3267
Bending 700-610
Alkanes CC
Stretching: 1200-800
Bending <500
Alkenes CC
Stretching: 1667-1640
Bending 1000-650
Alynes CC
Stretching: 2260-2100
Bending
Arenes
Stretching CH: 3100-3000
CC Stretching: 1600-1400
CH In-plane bending: 1300-1000
CH out-plane bending: 900-675
Alcohols + Phenols
Free OH Stretching: 3650-3584
Hydrogen bonded OH Stretching: 3550-3200
Alcholos + Phenols CO
CO Stretching: 1260-1000
CO Stretching Ethers
1150-1085
Unsaturated Ethers
1225-1200
Aromatic
1275-1200
CO Stretching Carbonyl Compounds
1870-1540
Electron Withdrawing group
Higher with more electron drawing characteristics
Electron Donating Groups
Higher with less electron donating characteristics
Conjugation Effect
Wavenumber decreases with cojugation

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