[en] This work analyses the adequacy of an analytical electrostatic energy formulation within the CNDO framework to predict the stable conformations of large molecular complexes. Comparisons are made with ab initio results for small systems such as water-formamide, methanol-water-imidazole, or guanine-cytosine and with AM1 results for two large systems: a molecular tweezer + the 9-methyladenine complex and a model active site of the alpha-chymotrypsin and its ligand complex. This approach is efficient in providing reliable conformers for large molecular systems in a very fast way.
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