Heteronuclear (Co-Sr) 2,3-pyridinedicarboxylate complex as precursor to the oxygen-deficient perovskite SrCoO2.52

The heterometallic, single-source precursor with formula {[CoSr(2,3-pdc)2(H2O)5]·3H2O}n (1), has been synthesized and investigated by elemental analysis, IR-spectroscopy, thermal analysis (TGA) and single crystal X-ray diffraction. The compound 1 crystallizes in the triclinic space group P−1 and is self-organized in a polymeric structure of 2D dimension. Thermal decomposition of 1 leads to the formation of oxygen-deficient perovskite SrCoO2.52, as is determined by powder X-ray diffraction.