00:01
And the first part of this problem, we're asked which of the following compounds is not ir active.
00:07
So in order to be ir active, we need a change in the dipole moment.
00:13
And hexane, we would see sp3, carbon hydrogen stretching at least.
00:21
Toluene, we would see sp2, carbon hydrogen bonding.
00:32
And acetone, we'd see, so this is our start.
00:37
We'd see sp3 carbon hydrogen bonding and we'd see our carbonyl.
00:42
So the answer is none of the above.
00:45
All of those will be ir active.
00:47
Then we're asked to match functional groups to the ir ranges.
00:51
So carboneals, we typically see them from 1650 to 1750.
00:59
Occasionally they can be a little higher and lower, but that's about normal, so that's for e.
01:06
Alchial sp3, carbon hydrogen bonding.
01:13
So this is usually right before 3 ,000...