Here's a little guide on how to write the input file MANDATORY KEYWORDS CIF system.cif BATH bath_radius PSEUDO first_shell_radius OUTPUT output_file_name PATTERN nAtom1 labelAtom1 nAtom2 labelAtom2 ... (little tricky there, if there is more than 1 atom1, you have to put it another time) NPATTERN nPattern LATTICE a . b . c . alpha . beta . gamma . ATOMS label charge neighbours radius_of_the_neighbouring_sphere ... DIST atom1 atom2 distance ... TSID END_OF_INPUT OPTIONNAL KEYWORDS TRANSLATE x y z CENTER atom1 atom2 ... X_AXIS atom1 atom2 ... Y_AXIS atom1 atom2 ... Z_AXIS atom1 atom2 ... NOTINPP atoms not in the first shell COLOR see the bath sorted with colors NOCOLOR see the bath sorted by atoms SEEFRAG see the fragment once found (recommended) OPTIMIZATION to optimize the total charge of the bath to be 0 by slightly changing the charges of the outer shell atoms