Synthesis and Luminescent Properties of Eu 3+ , Gd 3+ , and Tb 3+  Complexes with Quinoline-4-carboxylic Acids

I. A. Kotlova; F. A. Kolokolov; V. V. Dotsenko; N. A. Aksenov; I. V. Aksenova

doi:10.1134/S1070363219120144

Synthesis and Luminescent Properties of Eu³⁺, Gd³⁺, and Tb³⁺ Complexes with Quinoline-4-carboxylic Acids

Authors: Kotlova I.A.¹, Kolokolov F.A.¹, Dotsenko V.V.¹^,2, Aksenov N.A.², Aksenova I.V.²
Affiliations:
1. Kuban State University
2. North-Caucasus Federal University
Issue: Vol 89, No 12 (2019)
Pages: 2413-2419
Section: Article
URL: https://journals.rcsi.science/1070-3632/article/view/223199
DOI: https://doi.org/10.1134/S1070363219120144
ID: 223199

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Abstract
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Abstract

New complex compounds LnL₃·nH₂O (n = 5–10) have been synthesized on the basis of Eu³⁺, Gd³⁺, and Tb³⁺ salts and quinoline-4-carboxylic acid derivatives obtained via the Pfitzinger reaction. Composition and structure of the ligands and the resulting complex compounds have been confirmed by NMR and IR spectroscopy, thermogravimetry, and complexometric titration. Europium complex with 1,2,3,4-tetrahydroacridine-9-carboxylic acid has exhibited efficient luminescence.

Keywords

quinoline-4-carboxylic acid derivatives, Pfitzinger reaction, lanthanides, luminescent properties, complexation

About the authors

I. A. Kotlova

Kuban State University

Author for correspondence.
Email: kot-tlova@mail.ru
Russian Federation, ul. Stavropol’skaya 149, Krasnodar, 350040

F. A. Kolokolov

Kuban State University

Email: kot-tlova@mail.ru
Russian Federation, ul. Stavropol’skaya 149, Krasnodar, 350040

V. V. Dotsenko

Kuban State University; North-Caucasus Federal University

Email: kot-tlova@mail.ru
Russian Federation, ul. Stavropol’skaya 149, Krasnodar, 350040; Stavropol

N. A. Aksenov

North-Caucasus Federal University

Email: kot-tlova@mail.ru
Russian Federation, Stavropol

I. V. Aksenova