Two Hofmann-propanethiol-type clathrates of the form M(I-propanethiol)(2)Ni(CN)(4).G (M = Cd or Ni; G = benzene) have been prepared in the powder form. The 1-propanethiol (1-PT) molecules provide the cavities in which the guest benzene molecules in clathrate structure are accommodated. The infrared investigations of the obtained clathrates indicate that these compounds are similar in structure to the other Hofmann-type clathrates.