[FeIII(SR)4]1- complexes can be synthesized by the direct reaction of thiolates with FeCl3.

Abstract It is shown that the previously characterized [Fe III (SR) 4 ] 1− (R = Et, i -Pr, Ph) complexes can be synthesized by the direct reaction of 4 equiv. of LiSR with FeCl 3 in DMF solution. [Fe III (SR) 4 ] 1− complexes are synthetic analogs for the [Fe III ( S -Cys) 4 ] center in rubredoxin proteins.