In my book, it says that the following compound is meso. How is it meso? Where is the internal plane of symmetry? Does it even need a plane of symmetry to be meso?
First of all, my camera sucks! But being a poor student that I am, I can not upgrade so please bear with me.
The molecule is (2R,3S)-Dibromobutane. On top we have Br on the plane of the paper, CH3 with dashed lines, and H with a wedge.
On bottom, we have H with dashed lines, CH3 with a wedge and Br with solid lines.
First of all, my camera sucks! But being a poor student that I am, I can not upgrade so please bear with me.
The molecule is (2R,3S)-Dibromobutane. On top we have Br on the plane of the paper, CH3 with dashed lines, and H with a wedge.
On bottom, we have H with dashed lines, CH3 with a wedge and Br with solid lines.