1
Q
Where is high and low energy?
A
High every is to the left. Low energy is to the right.
2
Q
To the left of 3000
A
Sp2 C-H stretch (33% S-character)
3
Q
To the right of 3000
A
Sp3 C-H stretch (25% S-character)
4
Q
Stretch at 3300
A
Sp C-H stretch (50% S-character)
5
Q
Where is acetone located on IR?
A
1715
6
Q
What is at 1650 on IR?
A
C=C stretch (1600 is conjugated)
7
Q
Where is a ester on IR
A
1771ppm
8
Q
What is at 1790 on IR
A
Double bonded oxygen with Cl on same carbon
9
Q
Where are C triple bond C
and C triple bond N on IR?
A
2249
10
Q
Where is an secondary amine?
A
NH
One band at 3500-3350
11
Q
Where is a primary amine on IR?
A
NH2
Two bands at 3500-3350
Chem 333 Midterm
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