Three heterobimetallic complexes, [FeCp(CO)(2)](2)SnCl2, [FeCp(CO)(2)]SnCl3 and [FeCp(CO)(2)](2)Sn(PDC) in which Cp = cyclopentadienyl and PDC = pyridine-2,6-dicarboxylate, were synthesized, characterized by nuclear magnetic resonance spectroscopy (H-1, C-13 and Sn-119 NMR), infrared spectroscopy (IR), thermogravimetric experiments (TG/DT), and elemental analysis (C, H, and N). The complexes were then used as precursors for an initial approach of obtaining sintered composites respectively designated as (1), (2) and (3). X-ray diffraction (XRD, powder method) and Sn-119 and Fe-57 Mossbauer results have showed the presence of SnO2, syn cassiterite and Fe2O3, syn hematite as main constitutes of the materials. Electron probe X-ray microanalysis (EPMA) and scanning electron micrographs (SEM) have indicated the formation of a compact solid for samples (1) and (2) and the PDC ligand have contributed to the presence of more well-formed and dispersed grains for (3). (C) 2014 Elsevier B.V. All rights reserved.