[CP2K-user] [CP2K:18825] GEOMETRY wrong or EMAX_SPLINE too small!

[Krack Matthias]

Remove all atoms equivalent (because of the PBC) to an already defined one, e.g. atom 12 which is equivalent to atom 11. The list of too short distance warning can help you to identify the redundant atoms.

From: cp2k at googlegroups.com <cp2k at googlegroups.com> on behalf of Puneet Chandel <puneetchandel1997 at gmail.com>
Date: Monday, 22 May 2023 at 13:44
To: cp2k <cp2k at googlegroups.com>
Subject: [CP2K:18825] GEOMETRY wrong or EMAX_SPLINE too small!
Hello,

I am running geometry optimization of lattice structure of silicate with one unit cell. I have taken the coordinated from crystallographic database. I use the PBC exactly equal to the edge length given by XRD data so that unit cell can replicate itself. But it gives the error that GEOMETRY wrong or EMAX_SPLINE too small!. Although with  increase in PBC the GO starts but it does not converge and the geometry get distorted because the unit cell do not replicate itself and atoms overlap.
can anyone suggest how to minimize unit cell with PBC equal to edge length.

Thanks for your help
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