Eu3+在水溶液中电子从Eu2+转移到Ce4+时的化学发光

IF 1.7 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Russian Chemical Bulletin Pub Date : 2025-01-14 DOI:10.1007/s11172-024-4444-y

A. M. Abdrakhmanov, L. R. Yakshembetova, K. S. Vasilyuk, B. M. Gareev, G. L. Sharipov

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引用次数: 0

摘要

将EuCl2与（NH4）2Ce(NO3)6水溶液混合，检测到化学发光。对观测到的发光光谱组成分析表明，其发射体为激发离子(Eu3+)*。研究了反应质量的光致发光光谱。Eu3+和Ce3+离子是溶液混合时发生氧化还原反应的产物；它们是由于电子从Eu2+转移到Ce4+而形成的。测定了该反应的化学发光量（2•10−12爱因斯坦摩尔−1）和Eu3+离子激发量（η = 1.05•10−10）。

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Chemiluminescence of Eu3+ in aqueous solutions upon electron transfer from Eu2+ to Ce4+

Chemiluminescence was detected when mixing aqueous solutions of EuCl₂ and (NH₄)₂Ce(NO₃)₆. Analysis of the spectral composition of the observed luminescence demonstrated that its emitter is the excited ion (Eu³⁺)*. The photoluminescence spectra of the reaction mass were investigated. The ions Eu³⁺ and Ce³⁺ are the products of the redox reaction that takes place when the solutions are mixed; they are formed as a result of electron transfer from Eu²⁺ to Ce⁴⁺. The yields of chemiluminescence (2 • 10⁻¹² Einstein mol⁻¹) and excitation of the ion Eu³⁺ (η = 1.05 • 10⁻¹⁰) were determined for this reaction.

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来源期刊

Russian Chemical Bulletin 化学-化学综合

CiteScore

2.70

自引率

47.10%

发文量

257

审稿时长

3-8 weeks

期刊介绍： Publishing nearly 500 original articles a year, by leading Scientists from Russia and throughout the world, Russian Chemical Bulletin is a prominent international journal. The coverage of the journal spans practically all areas of fundamental chemical research and is presented in five sections: General and Inorganic Chemistry; Physical Chemistry; Organic Chemistry; Organometallic Chemistry; Chemistry of Natural Compounds and Bioorganic Chemistry.