Van Almsick, M., Am Markuskreuz 6, 45133 Essen, Germany
Dolhaine, H., Henkel KGaA, Henkelstrasse 67, 40191 Düsseldorf, Germany
Hönig, H., Institute for Organic Chemistry, Technical University Graz, Stremayrgasse 16, 8010 Graz, Austria

In this paper we describe numeric as well as symbolic algorithms for the enumeration of substitutional isomers with an unlimited number of different achiral substituents. We consider three different scenarios: first, the enumeration of diamutamers with a given set of ligand types and ligand multiplicity, second, the enumeration of diamutamer libraries with a given ligand assortment pattern, and, third, the enumerations of libraries with diamutamers exhibiting a limited number of ligands.