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Predicting octanol/water partition coefficient using solvation free energy and solvent-accessible surface area

Predicting octanol/water partition coefficient using solvation free energy and solvent-accessible surface area
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摘要 The regression model for octanol/water partition coefficients ( K ow ), is founded with only two molecular descriptors available through quantum chemical calculations: solvation free energy (Δ G S ), and solvent accessible surface area (SASA). For the properties of 47 organic compounds from 17 types, the model gives a correction coefficient (adjusted for degrees of freedom) of 0 959 and a standard error of 0 277 log unit. It is a suitable way to predict the partition properties that are related to solute solvent interactions in the water phase. The regression model for octanol/water partition coefficients ( K ow ), is founded with only two molecular descriptors available through quantum chemical calculations: solvation free energy (Δ G S ), and solvent accessible surface area (SASA). For the properties of 47 organic compounds from 17 types, the model gives a correction coefficient (adjusted for degrees of freedom) of 0 959 and a standard error of 0 277 log unit. It is a suitable way to predict the partition properties that are related to solute solvent interactions in the water phase.
出处 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2001年第3期299-303,共5页 环境科学学报(英文版)
基金 TheNationalNaturalScienceFoundationofChina (No .2 9837180 )andtheResearchFoundationfortheDoctoralProgramofHigherEducationofChi
关键词 solvation free energy solvent accessible surface area quantum chemical descriptor solvation free energy solvent accessible surface area quantum chemical descriptor
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参考文献7

  • 1EisfeldW,MaurerG.1999 Studyonthecorrelationandpredictionofoctanol waterpartitioncoefficientsbyquantumchemicalcalculations[].JPhysChemB.
  • 2LeoAJ.1993 CalculatinglogPoctfromstructures[].Chemical Reviews.
  • 3KlamtA,Sch¨u¨urmannG.1993 COSMO :Anewapproachtodielectricscreeninginsolventswithexplicitexpressionforthescreeningenergyanditsgradient[].JChemSocPerkinTrans.
  • 4BrinckT,MurrayJS,PolitzerP.1993 Octanol waterpartitioncoefficientsexpressedintermsofsolutemolecularsurfaceareasandelectrostaticpotentials[].JOrgChem.
  • 5PearlmanRS.1986 Partitioncoefficientdeterminationandestimation(DunnIII.WJ,BlockJH ,PearlmanRSed .)[]..
  • 6LideDV.1997 CRCHandbookofchemistryphysics 78th[]..
  • 7HermannRB.1972 TheoryofhydrophobicbondingII:Thecorrelationofhydrocarbonsolubilitywithsolventcavitysurfacearea[].The Journal of Physical Chemistry.

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