CLOGP method, fragmental constant

Here S is the solvent-accessible surface area for atom /, a, is the hydrophobic atom constant for atom /, and R , = e, where r is the distance between atom i and grid point t. In addition to supplementing standard CoMFA fields, HINT has been demonstrated to effectively model experimentally determined log P values in cases where CLOGP values fail. A different fragment-based, distance-dependent method to estimate lipophilicity, the molecular lipophilic potential (MLP), has been recently shown to be useful in docking and as a third field in CoMFA studies. 

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