<div dir="ltr"><div dir="ltr"><div dir="ltr"><div><div>Hello Rekha,</div><div><br></div><div><a href="https://spglib.github.io/spglib/index.html">Spglib library</a> is doing what you are looking for. Spglib has a python interface and can be easily installed via Pip or conda..</div><div>But you need to make a cell tuple (from CIF) which contains the lattice information, this requires some minimal Python programming.</div><div>My <a href="https://github.com/hungpham2017/mcu/tree/dev">MCU</a> project supports CIF file as well as the QE output files and it has cell analysis functions using spglib. Within a few lines of code, you can get what you want in the desired format. For example, in a Python interpreter or script:</div><blockquote style="padding:0px;margin-top:0px;margin-right:0px;margin-bottom:0px"><div>import mcu<br>work = mcu.CELL(cif='conventional.cif')<br>primitive = work.to_prim_cell()<br>work.write_cif(prim_cell, filename='primitive')<strike></strike></div></blockquote><div>If you are interested in this, I can assist further.</div><div>Hung Pham</div><div><br></div></div></div></div></div><br><div class="gmail_quote"><div class="gmail_attr" dir="ltr">On Thu, Jul 16, 2020 at 11:57 AM rekha sharma <<a href="mailto:rekha1997jpr@gmail.com">rekha1997jpr@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid"><div dir="auto"><div>Thank you very much sir,</div><div dir="auto"><br></div><div dir="auto">My materials are very new and not available in any database.<br><br><div class="gmail_quote" dir="auto"><div class="gmail_attr" dir="ltr">On Thu, Jul 16, 2020, 22:24 Yuvam Bhateja <<a href="mailto:yuvamb16@gmail.com" target="_blank">yuvamb16@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid"><div dir="auto">Hello Rekha<div dir="auto"><br></div><div dir="auto">You can check out "Material Project".</div><div dir="auto">It's a database where researchers share their findings and results of several different types of materials and of different applications.</div><div dir="auto"><br></div><div dir="auto">Every compound is available in primitive, conventional, computed and symmetric unit cell, etc.</div><div dir="auto">Hope you find this useful.</div><div dir="auto"><br></div><div dir="auto">Regards</div><div dir="auto">Yuvam Bhateja</div></div><br><div class="gmail_quote"><div class="gmail_attr" dir="ltr">On Thu, 16 Jul 2020, 7:40 pm rekha sharma, <<a href="mailto:rekha1997jpr@gmail.com" target="_blank" rel="noreferrer">rekha1997jpr@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid"><div dir="ltr">Dear Expert Users,<div><br><div>It is possible that this question has been answered many times before but I could not find it on the forum.</div><div><br></div><div>I have few complex structures and it is not possible to handle on my system in the conventional form.</div><div><br></div><div>Can you please advise any tool that can help me to convert a conventional cell cif file to a primitive cell file?</div><div><br></div><div>I have tried with VEST (niggli cell reduction) but it does not work for me. </div><div><br></div><div>Thank you very much.</div><div><div>Rekha<br></div><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div></div></div></div></div></div></div></div></div>
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Quantum ESPRESSO is supported by MaX (<a href="http://www.max-centre.eu/quantum-espresso" target="_blank" rel="noreferrer">www.max-centre.eu/quantum-espresso</a>)<br>
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<a href="https://lists.quantum-espresso.org/mailman/listinfo/users" target="_blank" rel="noreferrer">https://lists.quantum-espresso.org/mailman/listinfo/users</a></blockquote></div><br clear="all"><br>-- <br><div class="gmail_signature" dir="ltr"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><br></div><div>Hung Q. Pham</div><div>Gagliardi Group</div><div>Office: Smith 101</div><div>Email: <a href="mailto:phamx494@umn.edu" target="_blank">phamx494@umn.edu</a></div><div>Personal page: <a href="http://hungpham2017.github.io" target="_blank">hungpham2017.github.io</a><br></div><div dir="ltr"><span style="font-size:12.8px">Department of Chemistry</span><br></div><div dir="ltr"><span style="font-size:12.8px">University of Minnesota - Twin Cities, </span><span style="font-size:12.8px">Minneapolis, MN 55455</span></div></div></div></div></div></div></div></div></div></div></div></div></div>