I would like to to use the conformer plugin of Marvin to determine the potential conformers of a non-linear compound. I would have two questions: 1.) the program perform a geometric optimization for the molecule before the calculation?
2.) what means exactly the Dreiding energy that you receive using the Marvin conformer plugin? It means the E(total)=E(steric) or it contains the translation and rotation energy of the molecule also, which results E(total)=ΔfH°(enthaply of formation) = 3 /2RT + 3 /2RT + RT + bond energy + steric energy + torsional increments.
Thank you very much for your help.