The family of transition metal mixed oxides has received considerable attention due to the large number of structural phases, which exhibit attractive properties including complex magnetic phenomena, superconductivity or phase separation [1, 2]. A facile preparation route of BaCoO2.6 perovskite oxide from a solid heterometallic (Co-Ba) 2,3-pyridinedicarboxylate precursor [3 ] has been achieved. In the present paper we report on the characterization of BaCoO2.6 mixed oxide synthesized from molecular precursor by thermal decomposition method, a way which increase the control of the composition and microstructure features of the end products [4]. The synthesized sample has been identified by powder X-ray diffraction (XRD) and characterized by SEM-EDX spectroscopy. From XRD pattern all diffraction peaks were perfectly indexed to a cubic phase of BaCoO2.6 perovskite with lattice constants (a=5.659(5), b=5.659(5), c=28.45(4) ) (JCPDS Nr. 01-071-2453) and no other peaks for impurities were detected. SEM-EDX images of BaCoO2.6 annealed sample (figure 1) shows a well crystallized material, with a regular layered morphology and with a high content of pores, resulting from the organic part released during the annealing treatment.Figure 1. SEM images of the BaCoO2.6 annealed sample at different magnitudes: a) top view b) cross view The electrical properties of ceramic oxide pressed pallet has been revealed. The temperature dependence of dc electrical conductivity has a rising temperature-activation character and its value varied from 10-2 Ohm-1cm-1 at 300 K down to 10-6 Ohmcm-1 at 80 K with calculated activation energy in the range 0.16-0.24 eV. Such behaviour indicates that the conductivity obeys the rule of semiconducting materials. Thus, the study show the suitability of heterometallic 2,3-pyridinedicarboxylate coordination polymer as precursor to mixed oxide preparation with potential applications in catalysis, sensor applications, etc.figure