NAME¶

obminimize — optimize the geometry, minimize the energy for a molecule

SYNOPSIS¶

obminimize

[OPTIONS] filename

DESCRIPTION¶

The obminimize tool can be used to minimize the energy for molecules inside (multi-)molecule files (e.g., MOL2, etc.)

OPTIONS¶

If no filename is given, obminimize will give all options including the available forcefields.

-n steps

Specify the maximum number of steps (default=2500)

-cg

Use conjugate gradients algorithm (default)

-sd

Use steepest descent algorithm

-c criteria

Set convergence criteria (default=1e-6)

-ff forcefield

Select the forcefield

EXAMPLES¶

View the possible options, including available forcefields: Minimize the energy for the molecule(s) in file test.mol2: Minimize the energy for the molecule(s) in file test.mol2 using the Ghemical forcefield: Minimize the energy for the molecule(s) in file test.mol2 by taking at most 300 geometry optimization steps Minimize the energy for the molecule(s) in file test.mol2 using the steepest descent algorithm and convergence criteria 1e-5:

SEE ALSO¶

babel(1), obenergy(1), obrotamer(1). The web pages for Open Babel can be found at: < http://openbabel.org/> The web pages for Open Babel Molecular Mechanics can be found at: < http://openbabel.org/wiki/Molecular_mechanics>

AUTHORS¶

The minimize program was contributed by Tim Vandermeersch. Open Babel is developed by a cast of many, including currrent maintainers Geoff Hutchison, Chris Morley, Michael Banck, and innumerable others who have contributed fixes and additions. For more contributors to Open Babel, see < http://openbabel.org/wiki/THANKS>

COPYRIGHT¶

Copyright (C) 2007 by Tim Vandermeersch.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation version 2 of the License.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.