Synthesis and microstructure of BaMnO3 oxide obtained from coordination precursor

We report here on a new coordination heterometallic [MnII–BaII] polymer with 2,3-pyridinedicarboxylic bridging ligand and its application as single-source for access to perovskite oxide BaMnO3. The structure and magnetic properties of both coordination compound and the obtained oxide have been investigated. The tridentate and pentadentate 2,3-pyridinedicarboxylic ligands bridge MnII and BaII heteroatoms forming a 3D coordination polymer. The XRD and EDX results confirm the formation of the hexagonal phase of pure BaMnO3 perovskite.The magnetic and EPR spectroscopy measurements of 2 show characteristic structural and magnetic transitions reported for 2H–BaMnO3.