I'm learning organic chemistry from Clayden's book (2e). I've noticed they draw the cyclic hexenone below like this:
However, since the carbon on the carbonyl group is sp2 hybridized I am wondering if this is correct. Shouldn't this just be planar and look like this:
Ie, more of an envelope conformation? Or am I not grasping something correctly, like is it maybe not convenient to draw it like an envelope? The below structure was made in ChemSketch and using the 3D optimization function.