A new high-nitrogen compound [Mn(ATZ)(H2O)4]·2H2O: Synthesis and characterization

A new high-nitrogen compound [Mn(ATZ)(H2O)4]·2H2O (ATZ = 5,5-azotetrazolate) was synthesized. Crystal structure and elemental, IR and thermal analyses were investigated in the present work. It crystallized in triclinic space group P-1 with lattice parameters a = 6.304(2) Å, b = 7.004(2) Å, c = 7.921(3) Å, α = 76.114(5)°, β = 74.023(5)°, γ = 69.254(4)°. TG-DTG and DSC measurements are employed to postulate the thermal decomposition mechanism. The thermal decomposition kinetics of the main exothermic reaction was investigated by non-isothermal method and obtained its enthalpy of decomposition and the probable kinetic mechanism. An attempt was made to incorporate the relation between thermal stability and the structure.