Hello Geoff, >> and there is no algorithm to calculate the charges like the Gasteiger one >> for example. > > > That's easy to solve using either Open Babel or JOELib. Both libraries > will calculate Gasteiger charges. I could easily change the current code > to pick up charges with the "synchronization" to OBMol. That's correct !;-) Have a nice weekend ! > -Geoff Regards, Joerg -- Dipl. Chem. Joerg K. Wegner Univ. Tuebingen, Computer Architecture, Sand 1, D-72076 Tuebingen, Germany Tel. (+49/0) 7071 29 78970, Fax (+49/0) 7071 29 5091 E-Mail: mailto:wegnerj@informatik.uni-tuebingen.de WWW: http://www-ra.informatik.uni-tuebingen.de