A STUDY OF THE CARBONATE COMPLEXATION OF CM-III AND EU-III BY TIME-RESOLVED LASER FLUORESCENCE SPECTROSCOPY

被引：49

作者：

KIM, JI ^{[1
]}

KLENZE, R ^{[1
]}

WIMMER, H ^{[1
]}

RUNDE, W ^{[1
]}

HAUSER, W ^{[1
]}

机构：

[1] TECH UNIV MUNICH,INST RADIOCHEM,D-85747 GARCHING,GERMANY

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1994年 / 213卷

关键词：

D O I：

10.1016/0925-8388(94)90925-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Carbonate complexation of Cm-III and Eu-III is studied by time-resolved laser-induced fluorescence spectroscopy (TRLFS). The carbonate species M(CO3)(+), M(CO3)(2)(-) and M(CO3)(3)(3-) (M=Cm-III and Eu-III) are characterized by measuring excitation and emission spectra, and lifetime. Stability constants for the first carbonate complex in 0.1 M NaClO4, are found to be log beta(11) = 6.65+/-0.07 for Cm(CO3)(+) and log beta(11) = 6.57+/-0.08 for Eu(CO3)(+). The constant for Cm-III compares well with the values for Am-III derived spectroscopically and by solubility measurement. No difference is found for the stability constant of Eu(CO3)(+) in the excited state as determined by TRLFS and in the ground state as determined by solubility measurement.

引用

页码：333 / 340

页数：8

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