We present a new atom type classification system for use in atom-based calculation of partition coefficient (log P) and molar refractivity (MR) designed in part to address published concerns of previous atomic methods. The 68 atomic contributions to log P have been determined by fitting an extensive training set of 9920 molecules, with r2 = 0.918 and σ = 0.677. A separate set of 3412 molecules was used for the determination of contributions to MR with r2 = 0.997 and σ = 1.43. Both calculations are shown to have high predictive ability.
CITATION STYLE
Wildman, S. A., & Crippen, G. M. (1999). Prediction of physicochemical parameters by atomic contributions. Journal of Chemical Information and Computer Sciences, 39(5), 868–873. https://doi.org/10.1021/ci990307l
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