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<DIV>Dear Justin,</DIV>
<DIV> </DIV>
<DIV><FONT face="Courier New">For <TT>sodium dodecylbenzenesulfonate(C<SUB>
12</SUB>H<SUB>25</SUB>C<SUB>6</SUB>H<SUB>4</SUB>SO<SUB>3</SUB>Na), the
charges of S and O in S0<SUB>3<SUP>-</SUP></SUB><SUP> </SUP>,
I cannot find the suitable charge. Forthermore, the carbon in
benzene connecting the SO<SUB>3<SUP>-</SUP></SUB> is setted to
be zero, I think that there may
be questionable. The polarization of SO<SUB>3</SUB><SUP><SUB>
-</SUB> </SUP>is very large. what do you think so? </TT></FONT>
</DIV>
<DIV><FONT face="Courier New"><TT>Thanks again!</TT></FONT></DIV>
<DIV><FONT face="Courier New"><TT></TT></FONT> </DIV>
<DIV><FONT face="Courier New"><TT>H. Y. Xiao</TT></FONT></DIV>
<DIV><BR> </DIV></FONT>
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