The temperature dependence of the electrical conductivity σ of some two-dimensional chelated compounds ((ODA)FeCl4, (ODA)(Cyst)FeCl4, (ODA)CuCl4 and (ODA) (GA)CuCl4, where ODA = octanediammonium ion. Cyst = cystinium ion, GA = glucosam- monium ion) was investigated. Differential scanning calorimetry measurements of these compounds show the presence of more than one structural phase transition for each compound. These phase transitions are also observed in the conductivity results. Seebeck voltage measurements show that electrons are the majority charge carriers in all the crystal phases of the complexes.