Organic Chemistry 2 - IR Flashcards - Kylie Voss
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16 Terms
3700 - 3200 Absorption (cm-1)
Strong, broad peak
Alcohol (O-H)
3700 - 3300 Absorption (cm-1)
medium intensity peak
amine, amide (N-H)
- primary amine has 2 peaks
- secondary amine or terminal amine has one "fang"
3340 - 3200 Absorption (cm-1)
Strong
Alkyne C-H (sp)
3300 - 2500 Absorption (cm-1)
Strong, Broad
Carboxylic Acid (O-H)
- "hairy beard"
31000 - 3020 Absorption (cm-1)
Medium - Weak
Alkene, aromatic (sp2)
2960 - 2850 Absorption (cm-1)
Medium
Alkane (alkyl) (sp3)
2900, 2700 Absorption (cm-1)
Weak (2 Peaks)
Aldehyde (sp2 C-H)
2260 - 2210 Absorption (cm-1)
Medium
Nitrile (C - - N)
2260 - 2100 Absorption (cm-1)
Medium
Alkyne (C - - - C)
1800 Absorption (cm-1)
Strong
Acid Chloride (C - - O)
1780 - 1710 Absorption (cm-1)
Strong
Ester, Carboxylic acid (C - - O)
1750 - 1680 Absorption (cm-1)
Strong
Aldehyde, ketone (C - - O)
1690 - 1630 Absorption (cm-1)
Strong
Amide (C - - O)
2000 - 1660 Absorption (cm-1) Weak
1600 - 1450 Absorption (cm-1) Medium
Aromatic Ring (C - - C)
1680 - 1640 Absorption (cm-1)
Medium - Weak
Alkene (C - - C)
1230 - 1030 Absorption (cm-1)
Medium
Amine (C-N)
Note 
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