N,N′-双(2-水杨醛缩氨基苯基)-1,3-二丙二酰胺及其轻稀土配合物的合成

Synthesis and Characterization of N,N′-Bis(2-Salicylaldehyde-amino phenyl) Oxamide and Its Complexes of Light Rare Earths

报道了N ,N′ 双 (2 水杨醛缩氨基苯基 ) 1,3 二丙二酰胺 (H4 L)及其 7种稀土配合物的合成 ,经NMR、IR ,UV ,摩尔电导 ,元素分析 ,TG DTA等方法对配合物进行了表征 ,初步认证了配体及其配合物的结构 ,确认配合物组成为 :(Ⅰ ) :LRE2 Cl2 ·6H2 O (RE =La3+,Pr3+,Nd3+,Sm3+,Eu3+,Gd3+) ;(Ⅱ ) :LCe2 (OH) 2 ·(NO3) 2 ·2H2 O。并对其荧光性能进行测定 ,其中Eu ,Sm ,La配合物荧光性最好。

N,N′ bis(2 Salicylaldehyde amino phenyl) oxamide (abbreviated as H 4L) and its seven complexes of rare earths were synthesized. The properties of these compoounds were charaeterized by element analysis, NMR, IR, UV, TG DTA and molar conductance. The results show that H 4L can coordinate with rare earth ions. The composition of these complexes are: LCe 2(OH) 2(NO 3) 2·H 2O and LRE 2Cl 2·6H 2O (RE=La 3+ , Pr 3+ , Nd 3+ , Sm 3+ , Eu 3+ , Gd 3+ ). The probable structures of the complexes were proposed.