摘要
合成了三种新的希夫碱配合物[LnL2(NO3)2(H2O)2](H2O)(C2H5OH),[Ln(Ⅲ)=Nd,Gd,Dy;L=糠醛缩对苯二胺]。通过元素分析、IR、UV和摩尔电导分析等手段,对合成的配合物进行了表征,并用非等温热重法研究了钆配合物的热分解反应动力学。推断出第三步热分解动力学方程为:dα/dt=A·e-E/RT·3/2(1-α)4/3[1/(1-α)1/3-1]-1。
There new solid complexes of Lanthanid nitrates with Schiff base (L) derived from furfural and pPhenylenedimine have been synthesized and characterized by elemental analysis, IR,UV and molar conductance analysis. The composition of the complexes were confirmed to be NO3·H2O·(C2H5OH), (Ln = Nd, Gd, Dy). The thermal decomposition kinetics of Gd(Ⅲ) complex for the third stage was studied under nonisothermal condition by TG and DTG methods.The kinetic equation may be expressed as dα/ dt = A·e-E/RT ·3 / 2 (1-α)4/3 -1.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2002年第z3期51-53,共3页
Journal of the Chinese Society of Rare Earths
