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to prepare the MODECAR for a bond rotation TS

Posted: Wed Jul 04, 2018 10:25 am
by hakuna
Hi, dear all!
if we try to search a TS for bond rotation, how to prepare the MODECAR file to invoke DIMMER run?

i added the IS(0POSCAR) and FS(6POSCAR) POSCAR file, the story is the C-O bond rotation with the O-H bond pointing from down to upward , i use the structure with O-H bond parallel to the surface as the initial TS and try to optimize the TS using the DIMMER method.

Re: to prepare the MODECAR for a bond rotation TS

Posted: Thu Jul 05, 2018 3:23 am
by graeme
If you have an NEB calculation (even a rough one) you can use our neb2dim.pl script to generate a dimer calculation with a MODECAR file aligned along the reaction coordinate at the interpolated saddle position.

Re: to prepare the MODECAR for a bond rotation TS

Posted: Thu Jul 05, 2018 12:39 pm
by hakuna
thank you for the suggestion