docs: def _read_single_point_data(self):
          """
          Parses final free energy information from single-point calculations.
          """
          temp_dict = read_pattern(
              self.text, {
                  "final_energy":
                      r"\s*SCF\s+energy in the final basis set\s+=\s*([\d\-\.]+)"
              })
  
          if temp_dict.get('final_energy') == None:
              self.data['final_energy'] = None
          else:
              # -1 in case of pcm
              # Two lines will match the above; we want final calculation
              self.data['final_energy'] = float(temp_dict.get('final_energy')[-1][0])