00:03
This is the answer to chapter 13, problem number 38 from the smith organic chemistry textbook.
00:11
And this problem is asking us, it's giving us three pairs of molecules and asking us which molecule of each pair is going to absorb at the higher.
00:27
Okay, so pardon me.
00:28
So within each pair, it's highlighting a bond in each of the molecules.
00:34
And asking us which bond is going to absorb at a higher wave number by ir.
00:41
And so the thing to keep in mind when solving this problem is that stronger bonds are going to show at a higher wave number on ir.
00:53
And so each of these pairs of molecules, a, b and c, is actually comparing a csp2 carbon bound to something versus a .c.
01:04
Csp3 carbon bound to the same thing.
01:08
So in a, we have a carbon oxygen double bond.
01:12
That's a csp2 carbon bound to an oxygen versus a csp3 carbon bound to an oxygen.
01:20
And so the csp2 carbon bond to the oxygen is going to be stronger than just a csp3 to an oxygen...