Microwave-assisted generation of lanthanide(II) halides in THF and simple quantitative determination

被引：24

作者：

Dahlen, A ^{[1
]}

Hilmersson, G ^{[1
]}

机构：

[1] Gothenburg Univ, Dept Chem, S-41296 Gothenburg, Sweden

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2004年 / 15期

关键词：

microwave-assisted reactions; lanthanides; halides; titrations; quantitative determinations;

D O I：

10.1002/ejic.200400309

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Lanthanide(II) reagents (SMI2, SmBr2, YbI2, EuI2) have been prepared rapidly in high yields using microwave-assisted heating. Samarium diiodide is obtained as a saturated solution in THF (0.13 m) within 5 min and ytterbium diiodide (0.065 m) after 45 min. A simple method for quantitative determination of LnX(2) in THF is also described by utilizing the instantaneous reaction with ketones in the presence of an amine and water. This method establishes the concentration of the active single - electron-donor species, i.e. Ln(2+). ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004).

引用

页码：3020 / 3024

页数：5

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