ABSTRACT
Infrared spectra of MLNi (CN)4 [M=Mn, Fe, Co, Ni, Zn or Cd and L= Divalent metal of p-Aminobenzoic Acid or ABA (Mg)] are reported. Their structure consists of polymeric layers of [M-Ni(CN)4]a with the divalent metal of p-aminobenzoic acid [ABA(Mg)] molecules bound directly to the metal (M).