Hello! <div><br /></div><div>I'm trying to run a DFT calculation for a porphyrin bound to a small molecule and compare energy to that of the unbound porphyrin state and the small molecule alone: <div><div><br /></div><div>One thing I am wondering is if it is necessary to perform an <i>energy</i> job after the <i>geo_opt</i> job, or if I can use the total force_eval energy from the final optimized structure of <i>geo_opt</i> as my energy evaluation? </div><div><br /></div><div>I am finding that the energy I am getting at the end of <i>geo_opt </i>jobs are consistently different by about ~0.05 a.u. from <i>energy</i> jobs of the same molecule (the small-molecule bound state), with the geo_opt being lower in energy. Is this expected, is there something I'm not considering?</div><div><br /></div><div>I've attached my input files. Energy.inp runs from the restart file made by geo_opt.inp.</div><div><br /></div><div>Thank you kindly,</div><div>Aaron</div><div><br /></div><div><br /></div></div></div>
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