nd:#EEEEEE;width:400px">               <b>tolforce</b>  </span>  
<br><br>
<i>Optional</i><br>
Default: 1e-05<br><br>
Sets the target threshold for the maximum force component after nuclei relaxation.</li><br>
<hr>
<a name=x2c><li>                 <span style="display:inline-block;background:#EEEEEE;width:400px">               <b>x2c</b>  </span>  
<b><font color="red">EXPERIMENTAL</font> </b> 
<br><br>
<i>Optional</i><br>
Default: no<br><br>
EXPERIMENTAL. Build the X2C Hamiltonian and orbitals.</li><br>
<h