<div dir="ltr">Hi <div>i am trying to find TS for H2O dissociation on TiO2. The variable were set like this</div><div><br></div><div>BEGIN<br></div><div><div>BEGIN_PATH_INPUT</div><div>&PATH</div><div> restart_mode = 'restart' ,</div><div> string_method = 'neb',</div><div> nstep_path = 550,</div><div> ds = 1.D0,</div><div> opt_scheme = 'broyden',</div><div> num_of_images = 15,</div><div> k_max = 0.6169D0,</div><div> k_min = 0.4112D0,</div><div> CI_scheme = 'auto',</div><div> path_thr = 0.005D0,</div></div><div><br></div><div>The neb converged after more than 100 steps, however i could not find any imaginary frequency. can anyone guide me how can I improve my calculation? I also want to mention that I am unable to find TS for all other systems. I do not know where I am missing some thing. I will appreciate the help provided by the members. thanks in advance.<br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr">Best Regards<div>Muhammad Adnan Saqlain</div><div>UFJF Brazil<br><div><br></div></div></div></div>
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