20.07.2013 Views

New alternatives for estimating the octanol/water partition coefficient ...

New alternatives for estimating the octanol/water partition coefficient ...

New alternatives for estimating the octanol/water partition coefficient ...

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

General Papers ARKIVOC 2009 (x) 174-194<br />

Table 7. Residuals of <strong>the</strong> experimental logP and logSw values towards <strong>the</strong> corresponding values<br />

calculated through eq. 2 − 6, and through some already known QSPR models<br />

LogP LogSw<br />

Compound ClogP AlogP a MlogP a Eq2 Eq.3 Eq.4 Eq.5 ACD Eq.6<br />

1 ethane 0.06 0.53 0.05 0.34 0.03 0.22 -0.68 0.69 -0.55<br />

2 propane 0.08 0.62 0.08 0.37 0.06 0.25 -0.40 0.43 -0.21<br />

3 n-butane 0.08 0.69 0.16 0.34 0.07 0.26 -0.07 0.12 0.15<br />

4 n-pentane 0.05 0.74 0.25 0.25 0.04 0.23 0.11 -0.09 0.34<br />

5 n-hexane 0.13 0.89 0.48 0.30 0.13 0.32 0.10 0.04 0.16<br />

6 n-heptane 0.11 0.94 0.63 0.25 0.11 0.30 0.13 -0.04 0.14<br />

7 n-octane 0.23 1.13 0.95 0.36 0.24 0.42 0.11 1.07 -0.14<br />

8 n-nonane 0.20 1.17 1.13 0.36 0.21 0.40 0.15 -0.09 -0.18<br />

9 n-decane 0.27 1.86 1.43 0.49 0.29 0.47 0.17 -0.13 -0.36<br />

10 n-undecane 0.03 1.15 1.43 0.31 0.06 0.24 -0.48 0.17 -0.98<br />

11 n-dodecane -0.24 0.95 1.40 0.14 -0.21 -0.02 − − −<br />

12 n-tridecane -0.07 1.20 1.83 0.42 -0.03 0.15 − − −<br />

13 n-tetradecane -0.10 1.24 2.07 0.52 -0.05 0.13 − − −<br />

14 2-methylpropane 0.08 0.77 0.03 -0.10 -0.11 0.11 -0.24 0.38 0.15<br />

15 3-methylheptane − − − − − − − 0.16 -0.01<br />

16 2,4-dimethylpentane − − − − − − − 0.09 0.54<br />

17 e<strong>the</strong>ne -0.14 0.18 0.43 -0.75 -0.14 -0.06 -1.17 0.79 -0.81<br />

18 propene -0.02 0.46 0.55 -0.39 -0.03 0.05 -0.63 0.40 -0.29<br />

19 1-butene 0.07 0.59 0.73 -0.27 0.06 0.15 -0.14 0.05 0.15<br />

20 1-pentene -0.05 0.54 0.72 -0.43 -0.06 0.03 -0.03 -0.18 0.36<br />

21 1-hexene 0.02 0.68 0.94 -0.33 -0.02 0.09 0.09 -0.15 0.38<br />

22 1-heptene 0.08 0.82 1.18 -0.30 0.05 0.16 0.21 -0.23 0.35<br />

23 1-octene 0.13 0.94 1.42 -0.23 0.11 0.22 0.17 -0.15 0.15<br />

24 E-2-octene 0.01 0.86 1.29 -0.36 0.02 0.10 − − −<br />

25 2-ethylhexene -0.02 0.69 1.16 -0.66 -0.15 -0.04 − − −<br />

26 2-butyne 0.01 -0.41 -0.21 0.64 -0.29 -0.37 − − −<br />

27 1-octyne -0.03 -0.64 0.42 -0.16 -0.36 -0.38 − − −<br />

28 2-octyne -0.01 -0.13 0.42 -0.28 -0.26 -0.36 − − −<br />

29 benzene 0.01 0.32 -0.11 0.53 0.05 -0.16 0.04 -0.35 0.35<br />

30 toluene 0.09 0.41 0.12 0.13 0.12 -0.10 0.06 -0.17 0.19<br />

31 ethylbenzene -0.02 0.38 0.21 -0.26 0.01 -0.21 0.00 -0.16 0.13<br />

32 styrene 0.09 0.57 0.10 -0.52 0.31 -0.02 0.00 0.09 -0.19<br />

33 ethynylbenzene -0.01 -0.56 -0.45 0.27 0.19 -0.20 -0.41 0.26 -0.50<br />

34 o-xylene 0.03 0.32 0.18 -0.37 -0.01 -0.23 -0.02 -0.15 0.13<br />

35 m-xylene 0.06 0.40 0.26 -0.29 0.08 -0.15 0.03 -0.10 0.08<br />

36 p-xylene 0.01 0.35 0.21 -0.33 0.02 -0.21 -0.02 -0.10 0.10<br />

ISSN 1551-7012 Page 189 © ARKAT USA, Inc.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!