RESIDUE   EJ2      9
CONECT      FE     4 C1   C2   C3   H   
CONECT      NI     1 H   
CONECT      C1     2 FE   N1  
CONECT      N1     1 C1  
CONECT      C2     2 FE   N2  
CONECT      N2     1 C2  
CONECT      C3     2 FE   O3  
CONECT      O3     1 C3  
CONECT      H      2 FE   NI  
END   
HET    EJ2              9
HETNAM     EJ2 NI-FE REDUCED ACTIVE CENTER
FORMUL      EJ2    C3 H1 Fe1 N2 Ni1 O1 1+