H-1 and C-13 NMR studies of TTHA complexes with diamagnetic rare earth ions

被引:0
作者
Zhang, SR [1 ]
Ren, JM [1 ]
Pei, FK [1 ]
Liu, AZ [1 ]
Xiao, YW [1 ]
机构
[1] CHINESE ACAD SCI,CHANGCHUN INST APPL CHEM,APPL SPECT LAB,CHANGCHUN 130022,JILIN,PEOPLES R CHINA
关键词
NMR; TTHA; diamagnetic rare earth ions;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
TTHA complexes with diamagnetic rare earth ions (La3+, Y3+ and LU(3+)) were studied by H-1 and C-13 NMR spectroscopy. A symmetric structural model was suggested for La(TTHA) complex and an asymmetric model for Y(TTHA) and Lu(TTHA) complexes. The complex formation was dependent on the pH value of the solution. The interactions of La(TTHA) with the additional metal ions (La3+, Y3+ and Ca2+) were relatively weak, but relatively strong for that of Lu(TTHA) with the additional Lu3+.
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页码:429 / 434
页数:6
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