What are the isomers of dibromobenzene?

1 Answer
Jan 10, 2016

The benzene parent molecule is C6H6. It is a high symmetry hexagon, which belongs to the D6h point group. How many ways can I arrange 2 heteroatoms around the hexagon for C6H4X2?

Explanation:

It doesn't take too much insight to realize that I can position the halides 1,2 (with respect to each other), 1,3, or 1,4 - 3 isomers of dibromobenzene are thus possible. I urge you to sit down with a pencil and paper to confirm that this is correct.