Hello, <div><br></div><div>I am using CP2K 6.1. </div><div>I would like to optimize alpha glycine (with a monoclinic unit cell) in a stepwise manner due to problem with convergence of both cell and molecules simultaneously. </div><div>So, I would like to optimize the hyderogens first, then the molecules and finally the cell. </div><div>I am aware of the keyword /motion/constrant/FIXED_ATOMS/list to just allow the hydrogens moving. </div><div>But with the GEO_OPT run, the monoclinic symmetry of the unit cell have lost and it converged to a cubic cell.</div><div>If I use CELL_OPT, It tries to optimized the cell as well as hydrogens. </div><div>I would like to know is it possible to do the first step while fixing the cell symmetry?</div><div><br></div><div>Kindest regards,</div><div>Mozhdeh</div>
<p></p>
-- <br />
You received this message because you are subscribed to the Google Groups "cp2k" group.<br />
To unsubscribe from this group and stop receiving emails from it, send an email to <a href="mailto:cp2k+unsubscribe@googlegroups.com">cp2k+unsubscribe@googlegroups.com</a>.<br />
To view this discussion on the web visit <a href="https://groups.google.com/d/msgid/cp2k/e8aa8047-017f-4973-b8c8-27d4053a048an%40googlegroups.com?utm_medium=email&utm_source=footer">https://groups.google.com/d/msgid/cp2k/e8aa8047-017f-4973-b8c8-27d4053a048an%40googlegroups.com</a>.<br />