<div dir="ltr">Dear all,<div><br></div><div>1- I saw in tutorial of Molecular Dynamics that I should change the ionic masses to accelerate the minimization, I don't understand why? and why it value is decrease? I know that the ionic masses identify the type of atom.</div><div><br></div><div>example of <span style="color:rgb(0,0,0)">Benzene Molecule</span> :</div><div><pre style="color:rgb(0,0,0)">C 12.0d0 c_blyp_gia.pp
H 1.00d0 <a href="http://h.ps">h.ps</a></pre><pre style="color:rgb(0,0,0)"><br></pre><pre style="color:rgb(0,0,0)"><pre>C 2.0d0 c_blyp_gia.pp
H 2.00d0 <a href="http://h.ps">h.ps</a></pre>2- After the running How can I know that the system is stable or not?</pre><pre style="color:rgb(0,0,0)"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;white-space:normal"> I am eagerly hoping someone can help me.</span><br></pre><pre style="color:rgb(0,0,0)"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;white-space:normal"> Thank you.</span></pre><pre style="color:rgb(0,0,0)"><p style="margin-top:0pt;margin-bottom:0pt;margin-left:0in">Fadwa</p></pre></div></div>