SYNTHESIS, CRYSTAL-STRUCTURE AND THERMAL- DECOMPOSITION OF BIS[2-(2'-PHENOXYL)-BENZOXAZOLE]-DI-PYRIDINE MANGANESE(II)

The title complex C36H26MnN4O4 was synthesized and its structure was d etermined by single crystal X-ray diffraction method. The crystal is m onoclinic system, space group P2(1)/a, a=0.9833(3), b=1.8646(3), c=0.9 449(1) nm, Z=2, final R-w =0.057 for 1217 observed reflections [I grea ter than or equal to 3 sigma(I)]. The kinetics of thermal decompositio n reaction of the title complex was studied under non-isothermal condi tion by TG. The kinetic parameters were obtained from the analysis of TG, DTG curves by integral and differential methods. The kinetic expre ssions of thermal decomposition reaction are: first step d alpha/dt = A.exp(-E/RT).2(1-alpha)(1/2) secondstep d a/dt=A.exp(-E/RT).3/2(1-alph a)[-ln(1-alpha)](1/3).