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Luminescent Properties of Neodymium(III) p-Toluates

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Abstract

A study is performed of the synthesis and luminescent behavior of neodymium(III) complexes with p-methylbenzoic (p-toluic) acid and nitrogen- and phosphor-containing ligands. The complexes are Nd[(р‑MBA)3⋅D]2⋅xH2O and [Nd(р-MBA)3⋅2H2O]n, where р-MBA is the anion of p-methylbenzoic acid and D is 1,10-phenanthroline (phen), 2,2'-dipyridil (dipy), triphenylphosphine oxide (tppo), or hexamethylphosphotriamide (hmpa) (x = 1). Their electronic absorption and luminescence spectra are analyzed along with the structure of electronic transitions in luminescence spectra of the complex neodymium(III) p-toluates. Triplet levels in p- and m-methylbenzoic acids are calculated. The relationship between the intensity of luminescence and the composition of coordination sphere of prepared neodymium(III) complexes is established. Neodymium(III) complexes with p-toluic acid, hexamethylphosphotriamide, and triphenylphosphine oxide are found to exhibit the most intense luminescence in the IR region.

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Funding

This work was supported by the RF Ministry of Science and Higher Education as part of State Task no. 0265-2014-0001.

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  1. Institute of Chemistry, Russian Academy of Sciences, Far Eastern Branch, 690022, Vladivostok, Russia

    I. V. Kalinovskaya

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  1. I. V. Kalinovskaya
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Correspondence to I. V. Kalinovskaya.

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Translated by A. Kukharuk

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Kalinovskaya, I.V. Luminescent Properties of Neodymium(III) p-Toluates. Russ. J. Phys. Chem. 96, 1249–1253 (2022). https://doi.org/10.1134/S0036024422060115

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  • DOI: https://doi.org/10.1134/S0036024422060115

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