Hi Zhe,<br>
<br>
I tried Exciting. I used attribute primcell =true, but nothing happened.
The result structure is still conventional unit cell in the
geometry.OUT.xml. <br>The input.xml is attached.<br><br><br><div class="gmail_quote">On Fri, May 4, 2012 at 9:41 AM, GAO Zhe <span dir="ltr"><<a href="mailto:flux_ray12@163.com" target="_blank">flux_ray12@163.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="line-height:1.7;font-size:14px;font-family:arial">How about trying the spacegroup code in Exciting or ELK package?<div>
<div class="h5"><br><br><div></div><div></div><br>At 2012-05-04 21:31:48,"Peng Chen" <<a href="mailto:pchen@ion.chem.utk.edu" target="_blank">pchen@ion.chem.utk.edu</a>> wrote:<br> <blockquote style="padding-left:1ex;margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204)">
Dear All,<div><br></div><div>Is there any tools (free) to convert a conventional unit cell to a primitive cell?</div><div><br></div><div>Recently, I tried to convert atom positions from a face centered orthorhombic unit cell (space group cmca, basis vectors: a,b,c) </div>
<div>to its primitive cell. I used basis vectors: 1/2(a,0,c), 1/2(a,b,0),1/2(0,b,c). But it looks they are not the correct ones because the</div><div>chemical formula in this unit cell is not the same as that in conventional unit cell.</div>
<div><br></div><div>
<div><br></div>-- <br> Best Regards.<br> Peng <br>
</div>
</blockquote></div></div></div><br><br><span title="neteasefooter"><span></span></span><br>_______________________________________________<br>
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<br></blockquote></div><br><br clear="all"><br>-- <br> Best Regards.<br> Peng <br>