ist ecp_elements.</li><br>
<hr>
<a name=ecp_elements><li>                 <span style="display:inline-block;background:#EEEEEE;width:400px">               <b>ecp_elements</b>  </span>  
<br><br>
<i>Optional</i><br>
Default: none<br><br>
Contains the list of elements (separated by spaces) that should be treated with an Effective Core Potential.</li><br>
<hr>
<a name=ecp_quality><li>                 <span style="display:inline-block;background:#EEEEEE;width:400px">               <b>ecp_quality</b>  </span>  
