the dissociation energy

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yidiandian1981
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the dissociation energy

#1 Post by yidiandian1981 » Fri Sep 10, 2010 8:36 am

I calculated the iodine molecule with idfferent exchange correlation functions, and pseudopotentials, the dissociation energy of iodine molecule is always larger than 2.1eV. However, the experimental result is about 1.55 eV.

Please give some suggestions, thanks a lot!

following is the INCAR file:

ISTART=0
ICHARG=2
ENCUT=400

ISMEAR=0
SIGMA=0.2
EDIFF=0.0001

EDIFFG=-0.01
POTIM=0.02
ISPIN=2
Last edited by yidiandian1981 on Fri Sep 10, 2010 8:36 am, edited 1 time in total.

support_vasp
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Re: the dissociation energy

#2 Post by support_vasp » Wed Sep 11, 2024 2:27 pm

Hi,

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