<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">Hi, everyone.</font></span></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">I am simulating DMSO. At fisrst ,bond parameters contain two c-c bonds,and c-o bond ,which actually not in existence. But gmx 's force field ffg53a6 documents in top directory defines these bonds. When running mdrun , system reminds "segmentation default". then i get these virtual bond away , since that mdrun is ok !</font></span></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">Can anyone tell me why gmx define these bonds (ie. C-O bond ,C-C bond)? And has eliminating these bonds effects on simulating result?</font></span></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman"> </font></span></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman">Any suggestion is appreciated.</font></span></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman"> </font></span></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-US"><font face="Times New Roman"></font></span> </p>