iagonalized and 3-center electron repulsion integrals will remain the genuine 3-center integrals.</li><br>
<hr>
<a name=even_tempered_alpha><li>                 <span style="display:inline-block;background:#EEEEEE;width:400px">               <b>even_tempered_alpha</b>  </span>  
<br><br>
<i>Optional</i><br>
Default: 1.0<br><br>
Central exponent (most localized gaussian) in the even-tempered basis set construction. Only meaningful when basis='even_tempered'.</li><br>
<hr>
<a name=even_tempered_beta><li>     