00:01
So in this podcast, we're just going to be looking at cis and trans isomers.
00:04
However, unlike previous podcasts, we're going to be looking at the name first, and we're going to be drawing the structure from the name, which is the opposite way around that we've done it thus far.
00:15
Okay, so firstly, we're going to look at our name.
00:19
We've got trans, one, bromote, two, fluoride, ethene.
00:24
Okay, so we've got ethene.
00:27
So we know that's two carbons, one, two, eon, we've got a double bond.
00:32
So we've already solved that part of the puzzle.
00:35
So next we have a bromine on the first carbon and a fluorine on the second carbon.
00:44
Now because we have a double bond, we need to be thinking about the positioning of these atoms because there is no free rotation about this bond here.
00:53
We have an sb2 center.
00:54
It is confirmationally locked.
00:57
Okay, so the start of the name trans tells me that if i place a bromine here on the first carbon, the fluorine must go opposite it...