摘要
X射线晶体结构分析结果表明,标题化合物晶体(C_(36)H_(26)MnN_4O_4)属单斜晶系,空间群为P2_1/a,a=0.9833(3),b=1.8646(3),c=0.9449(1)nm,Z=2,最终因子R_W=0.057利用热重分析对配合物晶体两步热分解过程进行了非等温热力学研究,探讨了反应的可能机理,得到其相应的动力学参数.第一步非等温动力学方程为:da/dt=A·exp(-E/RT)·2(1-a)^(1/2),第二步:da/dt=A·exp(-E/RT)·3/2(1-a)[-1n(1-a)]^(1/3).
The title complex C36H26MnN4O4 was synthesized and its structure was determined by single crystal X-ray diffraction method. The crystal is monoclinic system , space group P21/a , a = 0.9833(3) , b = 1.8646(3) , c = 0.9449(1) nm , Z = 2 , final Rw = 0.057 for 1217observed reflections [I≥3σ(I)] . The kinetics of thermal decomposition reaction of the title complex was studied under non - isothermal condition by TG . The kinetic parameters were obtained from the analysis of TG , DTG curves by integral and differential methods . The kinetic expressions of thermal decomposition reaction are: first step da/dt = A·exp( -E/RT)· -2(1 - a)1/2 second step da/dt = A·exp( - E/RT) 3/2(1 - a)[ - ln(1 - a)]1/3.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1998年第4期371-377,共7页
Acta Chimica Sinica
