Formation of Nanostructured Carbon from [Ni(NH)][Fe(CN)].

The products of thermal decomposition in an argon atmosphere of [Ni(NH)][Fe(CN)] as a precursor has been studied. Decomposition products were studied up to 800 °C. Above 600 °C, all coordination bonds in the residues are broken with a formation of NiFe, Fe, and free carbon with a small admixture of nitrogen.

Solid-State Transformations in Inner Coordination Sphere of [Co(NH₃)₆][Fe(C₂O₄)₃]∙3H₂O as a Route to Access Catalytically Active Co-Fe Materials.

Thermal decomposition of [Co(NH₃)₆][Fe(C₂O₄)₃]∙3H₂O in argon atmosphere, at a low heating rate (3°/min), and in large amounts of the initial complex (~0.1 mole), has been studied. It was possible to distinguish four decomposition steps upon heating: In the temperature range of 50⁻100 °C-the loss of crystal water; 100⁻190 °C-stability region of dehydrated complex; 230⁻270 °C-the range of stability of intermediate phase with the formula CoFe(NH₃)₂(C₂O₄)₂; 270⁻350 °C-thermal decomposition of the intermediate with the formation of metallic products and further air oxidation with the formation of CoFeO₄.