UFF
  -OEChem-05172420583D

 14 21  0     0  0  0  0  0  0999 V2000
  -20.0400   -6.8580   60.3370 Fe  0  0  0  0  0  0  0  0  0  0  0  0
  -20.8870   -9.2140   59.0990 Fe  0  0  0  0  0  0  0  0  0  0  0  0
  -20.3840   -7.1760   57.6820 Fe  0  0  0  0  0  0  0  0  0  0  0  0
  -18.5310   -5.7620   58.6270 S   0  4  0  0  0  0  0  0  0  0  0  0
  -19.5480   -8.8780   60.6270 S   0  0  0  0  0  0  0  0  0  0  0  0
  -22.1720   -7.4140   59.3060 S   0  4  0  0  0  0  0  0  0  0  0  0
  -19.7080   -9.1340   57.4320 S   0  0  0  0  0  0  0  0  0  0  0  0
  -18.3470   -5.7890   56.3320 Fe  0  0  0  0  0  0  0  0  0  0  0  0
  -17.4490   -3.7530   57.7570 Fe  0  0  0  0  0  0  0  0  0  0  0  0
  -15.7180   -4.7510   55.6440 Fe  0  0  0  0  0  0  0  0  0  0  0  0
  -16.5890   -6.3590   57.7610 Fe  0  0  0  0  0  0  0  0  0  0  0  0
  -17.9170   -4.3740   55.4720 S   0  4  0  0  0  0  0  0  0  0  0  0
  -15.2960   -4.6070   58.1480 S   0  4  0  0  0  0  0  0  0  0  0  0
  -16.6670   -6.7410   55.4670 S   0  4  0  0  0  0  0  0  0  0  0  0
  1  5  1  0  0  0  0
  2  5  1  0  0  0  0
  2  6  1  0  0  0  0
  2  7  1  0  0  0  0
  3  7  1  0  0  0  0
  4  8  1  0  0  0  0
  4 11  1  0  0  0  0
  8 12  1  0  0  0  0
  8 14  1  0  0  0  0
  9 13  1  0  0  0  0
 10 12  1  0  0  0  0
 10 14  1  0  0  0  0
 11 13  1  0  0  0  0
 11 14  1  0  0  0  0
  3  4  1  0  0  0  0
  9 12  1  0  0  0  0
  4  9  1  0  0  0  0
  3  6  1  0  0  0  0
  1  6  1  0  0  0  0
  1  4  1  0  0  0  0
 10 13  1  0  0  0  0
M  RAD  5   4   2   6   2  12   2  13   2  14   2
M  END
> <OPENEYE_ISO_SMILES>
S1[Fe]2S[Fe]3[S]2[Fe]1[S]345[Fe]6[S]7[Fe]4[S]8[Fe]7[S]6[Fe]58

> <OPENEYE_INCHI>
InChI=1S/7Fe.7S

> <OPENEYE_INCHIKEY>
GGGZZPDFEZCZJK-UHFFFAOYSA-N

> <FORMULA>
Fe7S7

$$$$