Like cyclohexane (Problem 8.54), benzene also contains a sixmembered ring of carbon atoms, but it is flat rather than puckered. Explain, and predict the values of the C¬C¬C bond angles.

Video transcript

Hey everyone, we're told that paradigm is a six member ring with five carbons and one nitrogen. But unlike cyclo hexane, it is flat instead of puckered, explain this difference and predict the bond angles in paradigm first, let's go ahead and look at our carbon and our nitrogen looking at our carbon, We know that the valence electron for carbon is going to be two S 22 p two. And we can see that we have three electron groups surrounding our carbon. So this means that we have an S plus A P plus A P. So we have S. P. Two And as we've learned s. p. two means that we have tribunal planer. So our bond angle is going to be 120°. Now looking at nitrogen, nitrogen has a valence electron Of two S 2 two p 3. And we can also see three electron groups. But this time we have two atoms and one lone pair, but we still have S plus P plus P, which means we have S. P. Two. Again, sp two tells us that we have tribunal planner And a bond angle of 120°. So in tribunal planner geometry, all atoms lie in a flat plane. So essentially carbon and nitrogen are all sp two hybridized. And the geometry around each central atom is tribunal planer. So the bond angles around carbon and nitrogen are approximately 120°. And because of this this is why our peer Gynt is flat instead of puckered. Due to that tribunal planer geometry. Now, I hope that made sense. And let us know if you have any questions.