The program system **MOLGEN** is devoted to the
computation of all structural formulae (=connectivity isomers) that
correspond to a given molecular formula, with (optional) further
conditions (e.g. substructures). **MOLGEN** arose from the idea to
provide an efficient and portable tool for molecular structure elucidation
in both chemical industry, research and education.

**MOLGEN** can serve very well as the mathematical
heart of a program system for molecular structure elucidation, since it
provides all mathematically possible candidates that correspond to a given
set of chemical data. The present version is completely written in C++.

The system consists of the following components:

- the generator
**MOLGEN**for the computation of connectivity isomers, - the graphical molecule editor
**MOLED**for designing the input for the generator, - the display module
**MOLVIEW**for three-dimensional placements calculated by the built-in optimizer using a simplified version of the MM2 energy module.

This version of MOLGEN is no longer available. We are working on a new version for LINUX.

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