I've run an IRC (intrinsic reaction coordinates) calculation from my TS (transition state) and got two minima for each side. I am concerned about them.
One of them took about 100 steps to be achieved and looks reasonable. But the other is only one step from a TS and doesn't look reasonable, it more resembles a TS itself rather than the product although it lies about 15 kcal/mol lower.
So, do I need to optimize the structures I've got from IRC or can I just take their energies?