Dear all,

I have a very basic question. If I optimize the same structure in two different situations (for example two molecules next to each other, first time with one specific orientation against each other and next time again the same molecules with a different orientation against each other), and I calculate the total energy in two cases, let's assume for the first case I get -50 eV and for the second one I get -55eV. Now I want to use these figures to say which orientation is more stable. How can I say that? I mean the sign of the total energy confuses me. I know that the one with less total energy is more stable, but with considering the negative sign or not? (-55 < -50 but |-55|>|-50|)?

Thanks