[CP2K-user] [CP2K:22009] How to set walls for coordination or restrict molecule motion

zc_belief zhuyueyang123 at gmail.com
Wed Dec 24 06:22:35 UTC 2025


Dear All:
I'm using MTD to simulate the dissociation reaction of organic molecules on 
TiO2-supported single atoms. One CV is set to the coordination number, and 
the other to the distance. When the molecule doesn't dissociate, the 
coordination number is 0, but the molecule moves over a large area. Is 
there a way to restrict the molecule's movement? I tried setting a wall, 
but I'm unsure if this wall is suitable for the coordination number. Could 
you please guide me on how to set it? Thanks!

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