摘要
通过乙二胺四乙酸二酐与4-氨基水杨酸的酰化反应得到乙二胺N,N-二(4-乙酰胺基水杨酸)-二乙酸(H4L);在室温下,H4L与GdCl3、EuCl3在水溶液中进行配位组装反应,得到两个新的稀土金属配合物(Gd-L、Eu-L)。通过FTIR、元素分析、UV、TG-DTA等测试手段对稀土金属配合物的组成进行了初步确定与表征,得到两个配合物中金属离子与配体之比均为1:1,可表示为RE(HL)-3H2O(RE3+=Gd3+,Eu3+)。
The ethylenediamine N,N-bis-(4-acetylamino salicylic acid)-diacetic acid(H4L) was prepared by acylation reaction of ethylenediamine -diacetic acid with 4-acetylamino salicylic acid. The rare earth metal complexes (Gd-L,Eu-L) were synthesized by assembly reaction of H4L as ligand with GdCl3 and EuCl3 in solution. The composition and structure of ligand and the complexes were characterized by elemental analyses, Fourier transform infrared spectroscope (FTIR), UV spectra, thermal gravimetric and differential thermal analyzer (TG-DTA) analysis. It is confirmed that the molar ratios of metal to ligand in two complexes are both 1 : 1,and the complexes can be signed as RE (HL)- 3H2O (RE3+ =Gd3+, Eu3+ ).
出处
《光谱实验室》
CAS
CSCD
2012年第6期3292-3296,共5页
Chinese Journal of Spectroscopy Laboratory
基金
国家自然科学基金(21101032)
广东省自然科学基金(06021469)
关键词
乙二胺N
N-二(4-乙酰胺基水杨酸)-二乙酸
稀土配合物
表征
Ethylenediamine N, N-Bis- ( 4-Acetylamino Salicylic Acid )-Diacetic Acid
Rare Earth Complex
Characterization