Can someone please explain to me (preferably in layman's terms) why there is restricted rotation about a double bond?
I did some reading elsewhere, and most websites say there is restricted rotation because the Pi-Bond and Sigma-Bond overlap in 2 places, but I am having difficulty understanding/picturing how this mechanism works...
Turn on thread page Beta
Restricted rotation about a double bond? watch
- Thread Starter
- 22-10-2017 18:18
- 22-10-2017 18:24
- 22-10-2017 18:25
Think of a bond as a match stick or rod you can rotate.
One ball connected to another ball via a stick can rotate pretty fine. O-O
One ball connected to another ball with 2 match sticks cant rotate as you would have to rearrange the structure of the matchsticks to rotate. O=O
Your pi bond and sigma bond explanation is probably what the examiner wants though.
- Political Ambassador
- 22-10-2017 18:27
I found a really good Youtube video that explains the lack of rotation around a C=C bond, and it modeled it using molecule toys and it's about the overlap of Pi and Sigma bonds over the double carbon bond...