Carboxylato-bis-dibenzoylmethanates of europium(III): Luminescence and magnetic properties

Ткаченко, И. А.; Petrochenkova, N. V.; Мирочник, А. Г.; Карасев, В. Е.; Kavun, V. Ya.

doi:10.1134/s0036024412040255

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…The excited 7 F1 state, closely sited to the ground one, is partly populated already at room temperature. At 300 K, χmT for Eu 3+ complexes with diamagnetic organic ligands can vary in the range of 1.032-1.386 emu K/mol 1 depending on the ligand field parameters [159]. Therefore, for the complex 38-Eu, the 300 K χmT value of 1.778 emu K/mol is reasonable for the two uncoupled radicals and one Eu 3+ ion, but lower than the value of 1.93 emu K/mol found for the bis-nitronylnitroxide (NN) complex [Eu(NN)2(NO3)3] with a different coordination environment (N10 instead of N4O5) [160].…”

Section: Structural Features Of the Paramagnetic Tripod Complexesmentioning

confidence: 99%

Lanthanide Complexes with Tripodal Ligands

Vostrikova¹

2023

Preprint

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The main property of tripodal ligands is the predictable type of coordination. Homo- and heteroleptic lanthanide complexes with tripodal ligands are a representative class of compounds. However, despite the fact that many of them are paramagnetic their magnetic behavior is poorly understood. This is because their photophysical and catalytic properties have been more attractive. In the present review, we are trying to summarize the available structural information and extremely few data on magnetic properties in order to draw some conclusions about the prospective of tripods using in the design of quantum molecular magnets based on Ln ions. We would like to draw the reader's attention to the fact that despite the consideration of a large part of the currently known lanthanide compounds with tripodal ligands, this review is not exhaustive. However, our goal was to draw the attention of researchers to the fact that a whole niche of air-stable Ln complexes remained outside the attention of magnetochemists and theoreticians.

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Section: Structural Features Of the Paramagnetic Tripod Complexesmentioning

confidence: 99%

Lanthanide Complexes with Tripodal Ligands

Vostrikova¹

2023

Preprint

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“…The excited 7 F 1 state, closely sited to the ground state, is already partly populated at room temperature. At 300 K, χ m T for Eu 3+ complexes with diamagnetic organic ligands can vary in the range of 1.032-1.386 emu K/mol 1 depending on the ligand field parameters [159]. Therefore, for the complex 38-Eu, the 300 K χ m T value of 1.778 emu K/mol is reasonable for the two uncoupled radicals and one Eu 3+ ion, but a value lower than 1.93 emu K/mol was found for the bis-nitronylnitroxide (NN) complex [Eu(NN) 2 (NO 3 ) 3 ] in a different coordination environment (N 10 instead of N 4 O 5 ) [160].…”

Section: Structural Features Of the Paramagnetic Tripod Complexesmentioning

confidence: 99%

The Tripodal Ligand’s 4f Complexes: Use in Molecular Magnetism

Vostrikova

2023

Inorganics

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A predictable type of coordination is a key property of tripodal ligands. Homo- and heteroleptic lanthanide complexes with tripodal ligands are a representative class of compounds. However, despite the fact that many of them are paramagnetic, their magnetic behavior is poorly studied. This is because their photophysical and catalytic properties are considered more attractive. In the present review, we try to summarize the available structural information and only a few examples of data on magnetic properties in order to draw some conclusions about the prospect of such ligands in the design of quantum molecular magnets involving lanthanide (Ln) ions. We would also like to catch the reader’s attention to the fact that, despite the consideration of a large part of the currently known Ln compounds with tripodal ligands, this review is not exhaustive. However, our goal is to draw the attention of magnetochemists and theoreticians to a whole niche of air-stable Ln complexes that is still out of their field of vision.

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“…Eu(III) carboxylate dibenzoylmethanates (CDMs) have unique optical and magnetic properties [12,13]. In continuation of our studies [12][13][14][15][16][17] on investigation of the optical chemosensor properties of Eu(III) complexes, in the present work we report the results of an investigation of the luminescent chemosensor properties of Eu(III) CDMs of the composition Eu(Dbm) 2 Acid • nH 2 О, where Dbm is the dibenzoylmethanate ion; Acid is the anion of a carboxylic acid, namely, formic (Form − ), acetic (Ас − ), propionic…”

Section: Introductionmentioning

confidence: 99%

Luminescent Chemosensor Properties of Eu(III) Complex Compounds

Petrochenkova

Мирочник

2020

Opt. Spectrosc.

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Luminescent chemosensor properties of Eu(III) carboxylate dibenzoylmethanates are observed. It is shown that the interaction of Eu(III) complexes with ammonia or methylamine vapors leads to an increase in the Eu(III) luminescence intensity. An optical response mechanism related to the interaction between the analyte and Eu(III) complex molecules and to suppression of luminescence quenching is proposed.

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Carboxylato-bis-dibenzoylmethanates of europium(III): Luminescence and magnetic properties

Cited by 3 publications

References 7 publications

Lanthanide Complexes with Tripodal Ligands

Lanthanide Complexes with Tripodal Ligands

The Tripodal Ligand’s 4f Complexes: Use in Molecular Magnetism

Luminescent Chemosensor Properties of Eu(III) Complex Compounds

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