Provides energy output, available in graphical form during the course of the refinement cycle, and later, via a menu command.(Parameterised potentials calibrated using DFT, for greater accuracy.) Uses the best-available MM3 potentials, falling back onto UFF (Universal Force Field) where necessary.Hybrid least-squares cycle added to provide greater precision in the closing stages of refinement.Monte Carlo technique allows relaxation of structures far from equilibrium - e.g., crude, hand-drawn structures with excessive bond lengths and distorted bond angles!.Smart selection of potentials, based on bonding environment: requires no additional user input.Force field approach, using parameterised potentials (MM3 where possible, otherwise UFF).Provides energy minimization for new H positions, leaving the remainder of the molecule unchanged - hence ideal for adding H atoms to an "X-Ray Structure". Option to relax a selected group of atoms, independently of the rest of the structure: ideal for working with extended, macro-molecular structures.Use the Relax Molecule command to optimize your molecule, via a sophisticated Monte-Carlo algorithm that takes into account the existing bonding, and auto-identifies carbon hydridisation.Selection menu provides commands to duplicate, detach, move or edit any group of selected atoms.Atom Picker palette lets you change the atom type associate with the Add Atom tool.Shift-click to simultaneously add an atom and a bond. Click with the Add Atom tool to define the positions of new atoms.
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