00:01
In this problem, we'll be doing ir spectroscopy, and this allows us to find functional groups.
00:07
We're going to talk about how we can distinguish between different similar compounds using ir.
00:14
First, we have 1b time versus 2b time.
00:38
The difference between those two and ir is that here, we're going to have spcarbonhydrogen stretching.
00:46
This shows up around 3100 inverse centimeters, and we wouldn't see anything greater than 3000 with 2b time.
00:59
We could use that to distinguish.
01:03
Then, we have 3 -methylbenzaldehyde.
01:06
We have benzene ring, an aldehyde, and then we have a methyl group here, and then 2 -phenyl ethanol.
01:19
We'll have a benzene ring that will look like this.
01:29
Here, we're going to use what we call the region.
01:36
It's usually between 1600 and 2000 inverse centimeters...