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Ochem Ch14

Absorption location Functional group
IR absorption locations (Cm`1): 2850-2975 Alkane (C-H)
IR absorption locations (Cm`1): 3200-3600 Alcohol (O-H)
IR absorption locations (Cm`1): 1600-1700; 30-3100 Alkene C=C) (C=C-H)
IR absorption locations (Cm`1): 2100-2200; 3300 Alkyne (C-triple-C); (C-triple-C-H)
IR absorption locations (Cm`1): 2200-2300 Nitrile (C-triple-N)
IR absorption locations (Cm`1): 3350-3500 Amines (N-H) secondary
IR absorption locations (Cm`1): 1650-2000 Aromatics, benzene
IR absorption locations (Cm`1): 1720-1740; 1715; 1735-1750; 1700-1725 Carbonyls (C=O), Aldehyde (CHO), Ketone (RCOR), Ester (RCOOR), Acid (RCOOH)
(NMR) Nuclear Magnetic Resonance spectroscopy uses radio wave frequencies to demonstrate specific arrangements of all carbon and hydrogens atoms in a compound
IR spectroscopy uses infrared frequencies to demonstrate presence of functional groups in a compound
UV-vis Uses visible to ultraviolet light to find any conjugated Pi systems present in the compound
Carboxylic acid 2200-3600
Anhydride 2750-2850
loss of methyl group in mass spectrometry? -15
loss of ethyl group in mass spectrometry? -29
loss of propyl group in mass spectrometry? -43
loss of Butyl mass spectrometry? -57
loss of water from an alcohol -18
m-x Mclafferty rearrangement (x-1) (ketone or aldehyde (of x is even number
Created by: cguerrero8
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