<DIV id=RTEContent>Hi,</DIV> <DIV> </DIV> <DIV>the GROMACS Manual advises to use the Ryckaert-Bellemans parameters (function 3) in [dihedraltypes] for alcanes or aliphatic chains (for example in lipid or surfactant).</DIV> <DIV> </DIV> <DIV>Is it better than using function 1 and adding multiplicity, and why ?</DIV> <DIV> </DIV> <DIV>Thank you.</DIV> <DIV> </DIV> <DIV>Erol</DIV><p>
                <hr size=1>
<b><font color=#FF0000>Appel audio GRATUIT</font> partout dans le monde</b> avec le nouveau Yahoo! Messenger<br>
<a href="http://us.rd.yahoo.com/messenger/mail_taglines/default/*http://fr.messenger.yahoo.com">Téléchargez le ici !</a>