30.08.2014 Views

chemia - Studia

chemia - Studia

chemia - Studia

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.

MONICA L. POP, MIRCEA V. DIUDEA AND ALEKSANDAR ILIĆ<br />

BP<br />

9.2<br />

9.15<br />

9.1<br />

9.05<br />

9<br />

y = 0.0032x + 8.7105<br />

R 2 = 0.9125<br />

8.95<br />

80 90 100 110 120 130 140 150<br />

ShM1<br />

Figure 1. The plot of BP vs ShM 1 index<br />

The best monovariate model of BP (by the index ShM 1 ) is plotted in<br />

Figure 1. Compare our results with the best results reported so far in literature<br />

(Table 3, entry 7) and remark the best result (R 2 = 0.913) for the monovariate<br />

model of the octane boiling points. The other results in Table 3 (mono- or<br />

tri- variable models) can be considered as good (or acceptable) results.<br />

Table 1. Octanes boiling point BP, entropy S and total surface area TSA values<br />

1<br />

2<br />

3<br />

4<br />

5<br />

6<br />

7<br />

8<br />

9<br />

Molecule BP S TSA<br />

9.153 111.67 415.3<br />

9.120 109.84 407.85<br />

9.115 111.26 397.34<br />

9.114 109.32 396.04<br />

9.108 109.43 379.04<br />

9.065 103.42 405.11<br />

9.079 108.02 384.93<br />

9.082 106.98 388.11<br />

9.088 105.72 395.08<br />

22

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

Saved successfully!

Ooh no, something went wrong!