Problem 3
Formula: C4H10O
Spectroscopy Reference
Show Unsaturation answer
C4H10O
Rule 2, omit O, gives C4H10
4 - 10/2 + 1 = 0 degrees of unsaturation.
No pi bonds or rings.
Show IR answer
The broad band at 3339 indicates an O-H stretch, probably an alcohol. The bands at 3000-2850 indicate C-H alkane stretches. The band at 1041 is C-O stretch, consistent with an alcohol.
Show Structure answer
This is the structure. See if you can assign the peaks on your own.
Show NMR answer
A and B do not couple because of A's ability to H-bond.
Previous Problem
Problems list
Next Problem