摘要
合成了稀土硝酸盐与希夫碱 2 -羟基 - 1 -萘醛缩 4-氨基安替吡啉 (以 HL表示 )的 3种配合物。通过元素分析、IR、UV和摩尔电导分析等方法 ,确定配合物的组成为 [Ln(HL) (C2 H5OH)(H2 O) 2 ] (NO3 ) 3 (Ln=La,Nd,Eu) ,并用非等温热重法研究了 Eu( )配合物的热分解反应动力学 ,推断出第 3步热分解动力学方程为 :dα/dt=A· e-E /RT· 1 /2 (1 -α) [- ln(1 -α) ] -1 。
Three solid complexes of Schiff base C 22H 19N 3O 2 (HL) derived from 2-hydroxy-1-naphthaldehyde and 4-aminoantipyrine with lanthanid nitrate have been synthesized and characterized by elemental analysis,IR,UV and molar conductance analysis. The compositions of the complexes were confirmed to be [Ln(HL)(C 2H 5OH)(H 2O) 2](NO 3) 3 (Ln=La, Nd, Eu). The thermal decomposition kinetics of Eu(Ⅲ) complex for the third stage was studied under non-isothermal condition by TG and DTG methods.The kinetic equation may be expressed as:da/dt=A·e -E/RT·1/2(1-α) -1
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2004年第1期91-96,共6页
Periodical of Ocean University of China
