Luminescent amine sensor based on europium(III) chelate

被引：18

作者：

Petrochenkova, Nataliya V. ^{[1
,2
]}

Mirochnik, Anatolii G. ^{[1
]}

Emelina, Tatyana B. ^{[1
]}

Sergeev, Alexander A. ^{[3
]}

Leonov, Andrei A. ^{[3
]}

Voznesenskii, Sergey S. ^{[3
]}

机构：

[1] Russian Acad Sci, Far East Branch, Inst Chem, Vladivostok 690022, Russia

[2] Nevelskoy Maritime State Univ, Vladivostok 690059, Russia

[3] Russian Acad Sci, Far East Branch, Inst Automat & Control Proc, Vladivostok 690041, Russia

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2018年 / 200卷

基金：

俄罗斯科学基金会;

关键词：

Europium(III); Benzoylacetonate; Luminescence; Chemosensors; Methylamine; METAL-ORGANIC FRAMEWORK; BIOGENIC-AMINES; AMMONIA; CHEMOSENSOR;

D O I：

10.1016/j.saa.2018.03.084

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The effect of methylamine vapor on luminescence of Eu(III) tris-benzoylacetonate (I) immobilized in thin-layer chromatography plates has been investigated. It has been revealed that interaction of I with analyte vapor results in increase of the intensity of Eu(III) luminescence. The mechanism of the effect of methylamine vapors on intensification of the Eu(III) luminescence has been suggested using the data of IR spectroscopy and quantum chemistry calculations. The mechanism of luminescence sensitization consists in bonding of an analyte molecule with a water molecule into the coordination sphere of Eu(III). As a result, the bond of a water molecule with the luminescence centre weakens, rigid structural fragment including europium ion, water and methylamine molecules forms. The presence of such fragment must naturally promote decrease of influence of OH-vibrations on luminescence of the complex I. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：70 / 75

页数：6

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