【摘要】 合成了铬 ( )的一个新配合物 Cr(Nica) 3 (H2 O) 3 (NO3 ) 3 ·H2 O(Nica表示烟酰胺 ) ,并对其进行了热分解非等温动力学研究。通过摩尔电导、紫外可见光谱、红外光谱、X-射线粉末衍射等 ,对其结构进行了表征。运用 Achar法与 Coats- Redfern法 ,对非等温动力学数据进行分析 ,推断第二步热分解反应按动力学方程 dα/ dt=Ae-ERT· 32 (1 +α) 23 [(1 +α) 1 3 - 1 ] -1进行 ,同时给出了热力学补偿效应表达式。更多还原

【Abstract】 A new complex Cr(Nica) 3 (H2 O) 3 (NO3 ) 3 · H2 O(Nica denotes nicotinamide) was pre- pared,and its kinetics of thermal decomposition was studied undrnon- isothermal condition. Its coordination structure was assigned on the basis of molar conductance,IR,UV,and X- ray. The non- isothermal kinetic data were analyzed by the Achar method and the Coats- Red- fern method.The possible reaction mechanism at2 nd step is suggested by comparison of the kinetic parameters.The kinetic equation may be expressed as dα/ dt=A·e-E /R T· 3/ 2 (1+α) 2 /3 [(1+α) 1 /3 - 1]-1 . The mathematical expression ofthe kinetic compensation effectof the thermal decompo- sition reaction have also been obtained.更多还原