Complexation of Actinides(VI) with Furan-2-carboxylic and Thiophene-2-carboxylic Acids in Aqueous Solutions and Synthesis of Crystalline Compounds

被引：0

作者：

Fedoseev, A. M. ^{[1
]}

Grigor'ev, M. S. ^{[1
]}

Yusov, A. B. ^{[1
]}

机构：

[1] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Leninskii Pr 31,Block 4, Moscow 119071, Russia

来源：

RADIOCHEMISTRY | 2012年 / 54卷 / 05期

关键词：

actinides(VI); complexation; furan-2-carboxylic acid; thiophene-2-carboxylic acid; single crystal X-ray diffraction; electronic absorption spectra;

D O I：

10.1134/S1066362212050037

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Crystalline uranyl compounds with furan-2-carboxylic (F2C) and thiophene-2-carboxylic (T2C) acids containing the complex anions [UO2(OOCC4H3O) (3)](-) and [UO2(OOCC4H3S) (3)](-) were synthesized and studied by single crystal X-ray diffraction. A previously unknown compound of a transuranium element, Pu(VI), with T2C, also containing the complex anions [PuO2(OOCC4H3S) (3)](-), was synthesized. With Pu(VI) taken as example, the complexation of hexavalent actinides with F2C and T2C in aqueous solutions was studied, and the stability of the complexes PuO2L+ (L is F2C or T2C anion) was determined. The Pu(VI) complexes with F2C are slightly more stable than those with T2C but less stable than Pu(VI) monoacetate complexes. The spectral characteristics of the complexes are discussed.

引用

页码：435 / 442

页数：8

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