QUESTION 3 Predict the IR absorption bands (peaks) observed in the spectrum of 3-methylcyclohexanone. sp3 CH stretching (-2850-2960 cm-1) sp2 C-H stretching (-3000-3100 cm-1) Alcohol O-H stretch (-3300 cm1, broad) c-o double bond stretch (-1700 cm-1) Aromatic out of plane bend for monosubstitution (690-710 and 730-770 cm-1). Aromatic out of plane bend for para (1,4) disubstitution (810-840 cm1) Aromatic out of plane bend for meta (1,3) disubstitution (690-750 and 750-810 cm 1). Aldehyde C-H stretch (2750 and 2850 cm-1). Carboxylic acid (carboxy group) O-H stretch (-2500-3000 cm1, broad) N-H stretch (2 bands at -3400 cm1) N-H bend (-1600 cm ) Aromatic C-C double bond stretches (-1500 and 1600 cm-1). Aromatic overtones (1667-2000 cm-1)

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QUESTION 3
Predict the IR absorption bands (peaks) observed in the spectrum of 3-methylcyclohexanone.
sp3 C-H stretching (-2850-2960 cm 1)
sp2 C-H stretching (-3000-3100 cm-1)
Alcohol O-H stretch (-3300 cm-1, broad)
C-O double bond stretch (-1700 cm-1)
Aromatic out of plane bend for monosubstitution (690-710 and 730-770 cm-1).
Aromatic out of plane bend for para (1,4) disubstitution (810-840 cm-1).
Aromatic out of plane bend for meta (1,3) disubstitution (690-750 and 750-810 cm 1).
Aldehyde C-H stretch (2750 and 2850 cm-1).
Carboxylic acid (carboxy group) O-H stretch (-2500-3000 cm-1, broad)
N-H stretch (2 bands at -3400 cm-1)
N-H bend (-1600 cm*1)
Aromatic C-C double bond stretches (-1500 and 1600 cm-1).
Aromatic overtones (1667-2000 cm-1)
O O
O O
Transcribed Image Text:QUESTION 3 Predict the IR absorption bands (peaks) observed in the spectrum of 3-methylcyclohexanone. sp3 C-H stretching (-2850-2960 cm 1) sp2 C-H stretching (-3000-3100 cm-1) Alcohol O-H stretch (-3300 cm-1, broad) C-O double bond stretch (-1700 cm-1) Aromatic out of plane bend for monosubstitution (690-710 and 730-770 cm-1). Aromatic out of plane bend for para (1,4) disubstitution (810-840 cm-1). Aromatic out of plane bend for meta (1,3) disubstitution (690-750 and 750-810 cm 1). Aldehyde C-H stretch (2750 and 2850 cm-1). Carboxylic acid (carboxy group) O-H stretch (-2500-3000 cm-1, broad) N-H stretch (2 bands at -3400 cm-1) N-H bend (-1600 cm*1) Aromatic C-C double bond stretches (-1500 and 1600 cm-1). Aromatic overtones (1667-2000 cm-1) O O O O
QUESTION 4
Predict the IR absorption bands (peaks) observed in the spectrum of propionic acid.
sp3 C-H stretching (-2850-2960 cm 1)
sp? C-H stretching (-3000-3100 cm-1)
Alcohol O-H stretch (-3300 cm-1, broad)
C-O double bond stretch (-1700 cm-1)
Aromatic out of plane bend for monosubstitution (690-710 and 730-770 cm-1).
Aromatic out of plane bend for para (1,4) disubstitution (810-840 cm 1).
Aromatic out of plane bend for meta (1,3) disubstitution (690-750 and 750-810 cm*1).
Aldehyde C-H stretch (2750 and 2850 cm 1).
Carboxylic acid (carboxy group) O-H stretch (-2500-3000 cm-1, broad)
N-H stretch (2 bands at -3400 cm-1)
N-H bend (-1600 cm-1)
Aromatic C-C double bond stretches (-1500 and 1600 cm-1).
Aromatic overtones (1667-2000 cm"l)
O O
O O
O O
Transcribed Image Text:QUESTION 4 Predict the IR absorption bands (peaks) observed in the spectrum of propionic acid. sp3 C-H stretching (-2850-2960 cm 1) sp? C-H stretching (-3000-3100 cm-1) Alcohol O-H stretch (-3300 cm-1, broad) C-O double bond stretch (-1700 cm-1) Aromatic out of plane bend for monosubstitution (690-710 and 730-770 cm-1). Aromatic out of plane bend for para (1,4) disubstitution (810-840 cm 1). Aromatic out of plane bend for meta (1,3) disubstitution (690-750 and 750-810 cm*1). Aldehyde C-H stretch (2750 and 2850 cm 1). Carboxylic acid (carboxy group) O-H stretch (-2500-3000 cm-1, broad) N-H stretch (2 bands at -3400 cm-1) N-H bend (-1600 cm-1) Aromatic C-C double bond stretches (-1500 and 1600 cm-1). Aromatic overtones (1667-2000 cm"l) O O O O O O
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