摘要
本文采用XRD、IR等手段证实了在等温低热条件下[Ni(NH_3)_6]Cl_2与 NaNO_2发生了固相配位取代反应获得trans-[Ni(NO_2)_2(NH_3)_4产物。采用气相色谱研究了[Ni(NH_3)_6]Cl_2的热分解行为。说明取代反应是按SNI机理进行的,并随温度升高反应速率加快。利用XRD研究了反应的动力学。采用计算机以最小二乘法进行曲线拟合,计算出反应速率常数和活化能。
The solid state substitution reaction of hexaamminenikeK (Ⅱ )chloride with sodium nitrite at low temperatures has been studied by XRD. IR and GC. The trans- [Ni(NO2)2(NH3)4] was obtained from the reaction. The reaction seems to obey a SN1 mechanism. On the basis of the experimental results the activation energy was calculated.
出处
《西南工学院学报》
CAS
1993年第4期6-11,共6页
Journal of Southwest China Institute of Technology
关键词
镍
固相取代反应
络合物
亚硝酸钠
solid state substitution reaction
coordination compound
[Ni (NH_3)_6]Cl_2
[Ni(NO_2)_2(NH_3)_4]
