MOLGEN 5.x combines the efficiency of the molecular generator MOLGEN 3.5 and the flexibility of MOLGEN 4.x. To achieve this, the software was reimplemented based on a totally new concept. The most visible new features are fuzzy molecular formula input and explicit use of atom state patterns. We describe the version MOLGEN 5.0 of this new series.
Keywords: MOLGEN, structure generation, fuzzy molecular formula, atom state pattern, molecular graph, goodlist, badlist, backtracking, diophantine equation, orderly generation, molecular libraries, connectivity isomers, constitutions, molecular structure elucidation, substructure restriction, aromaticity detection.