| 三烟酰胺铬(Ⅲ)配合物的合成及其热分解非等温动力学研究 |
| SYNTHESIS AND STUDIES ON THE NON-ISOTHERMAL KINETICS OF THERMAL DECOMPOSITION OF CHROMIUM(Ⅲ) TRINICOTINAMIDE COMPLEX |
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| 摘要: 合成了铬()的一个新配合物Cr(Nica)3(H2O)3(NO3)3·H2O(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-E/RT·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。 |
| 关键词: 铬(Ⅲ)配合物 烟酰胺 热分解 非等温动力学 |
| 基金项目: 山东省自然科学基金资助项目 |
| Abstract: A new complex Cr(Nica)3(H2O)3(NO3)3·H2O(Nica denotes nicotinamide) was prepared,and its kinetics of thermal decomposition was studied undrnonisothermal 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-Redfern method.The possible reaction mechanism at 2nd step is suggested by comparison of the kinetic parameters.The kinetic equation may be expressed as dα/dt=A·e-E/RT·3/2(1+α)2/3[(1+α)1/3-1]-1. The mathematical expression ofthe kinetic compensation effectof the thermal decomposition reaction have also been obtained. |
| Keywords: Cr(Ⅲ) complex nicotinamide thermal decomposition non-isothermal kinetics |
| 投稿时间：1995-01-28 |
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| 周保学,仲维科,黄萍,贾元江,王大庆.三烟酰胺铬(Ⅲ)配合物的合成及其热分解非等温动力学研究[J].无机化学学报,1996,12(1):24-29. |
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