I'm trying to calculate the free energy of the following Gaussian Input File:
# opt freq b3lyp/6-31g scrf=(cpcm, solvent=water)
Fe atom
2 1
Fe
I am getting two quite different free energy values depending on the operating system on which the programme is run.
In Windows : -1263.116031 Hartree
In Linux : -1263.165737 Hartree
I've attached the output files below. What is the cause for the deviation above?