Effect of the homo- and heterobimetallic compounds derived from s-indacene on the thermal decomposition of ammonium perchlorate Potential applications as burning rate catalysts

This contribution describes an approaching about the catalytic activity of the homo- and heterobimetallic complexes derived from s-indacene on the thermal decomposition of ammonium perchlorate (abbreviate AP). The complexes, anti-[Cp*Fe-s-Ic'-FeCp*] (1), anti-[Cp*Fe-s-Ic'-CoCp*] (2), anti-[Cp*Fe-s-Ic'-NiCp*] (3) and anti-[Cp*Fe-s-Ic'-Mn(CO)(3)] (4) (with s-Ic': 2,6-diethyl-4,8-dimethyl-s-indaceneiide), were compared with the catalytic activity of the catocene (cat) complex previously reported. Furthermore, in order to clarify the mechanism of the bimetallic compounds, it was tested ferrocene (Fc) compound as burning rate (BR) catalyst on the thermal decomposition of AP. These compounds shown a shift on the peak temperature to left and an increase released heats during thermal decomposition of AP. The burning rate catalytic activity of Fc, 1, 2, 3 and 4 on thermal decomposition of AP was examined by thermogravimetry and differential scanning calorimetry techniques.