<div dir="ltr"><div><div>Dear Sir,<br></div> I am having problem in calculating geometry optimization in MRCIS and MRCISD in ground and excited state. Which key word makes the difference between the MRCIS and MRCISD. <br><br></div>advance thanks for your help.<br clear="all"><div><div><div><div><br>-- <br><div class="gmail_signature"><div dir="ltr"><div><font color="#cc0000"><b>Best Wishes & Regards</b></font></div><div><font color="#274e13"><br></font></div><font color="#0000ff" size="2"><b><i>Subhendu Ghosh</i></b></font><div><font color="#0000ff" size="2"><b><i>Banaras Hindu University</i></b></font></div></div></div>
</div></div></div></div></div>