Water-Soluble 15-Metallacrown-5 Complexes: Molecular Structures and Properties

Katkova, Мarina A.; Ketkov, Sergey Yu.

doi:10.1007/978-3-031-08576-5_7

Cited by 3 publications

(2 citation statements)

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“…They can be easily obtained by one-pot reactions with α-substituted hydroxamic acids and consist of five repeating -[MÀ NÀ O]-fragments with an additionally coordinated central lanthanide(III) ion. [38][39][40][41] Despite the large number of reports devoted to structural studies of the features of 15-metallacrown-5 complexes and their assemblies with polycarboxylate linkers, investigations devoted to the electronic structures of these complexes remain scarce. [42][43][44][45][46] The 15-metallacrown-5 complexes are of particular interest for their magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

“…Heteropolynuclear 3d–4f 15‐metallacrown‐5 complexes belong to an extensive family of metallamacrocycles. They can be easily obtained by one‐pot reactions with α‐substituted hydroxamic acids and consist of five repeating ‐[M−N−O]‐ fragments with an additionally coordinated central lanthanide(III) ion [38–41] . Despite the large number of reports devoted to structural studies of the features of 15‐metallacrown‐5 complexes and their assemblies with polycarboxylate linkers, investigations devoted to the electronic structures of these complexes remain scarce [42–46] .…”

Section: Introductionmentioning

confidence: 99%

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Structural and Magnetic Properties of a {GdCu₅}₂Metallacrown Dimer with a Disulfonate Linker

Pavlishchuk,

Zeller,

Carrella

et al. 2024

Eur J Inorg Chem

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The complex {Na2(H2O)8[GdCu5(GlyHA)5(H2O)4L]2}L2·2.5DMF ·10.5H2O (1, where GlyHA2‐ = glycinehydroxamate, L2‐ = 4,4'‐bis(2‐sulfonatostyryl)biphenyl) was obtained as the outcome of the metathesis reaction of previously reported [GdCu5(GlyHA)5(CO3)(NO3)(H2O)5]·3.5H2O with an excess of the disulfonate's sodium salt. X‐Ray analysis of 1 shows a dimeric structure in which 15‐metallacrown‐5 units {GdCu5}3+ are arranged in an “edge‐to‐edge” manner by way of two linking disulfonates, L2‐. Magnetic studies of polycrystalline 1 over a temperature range of 2 – 300 K revealed both Gd‐‐Cu ferromagnetic and Cu‐‐Cu antiferromagnetic interactions within the metallacrown unit. Experimental χMTvs. T data for 1 were fitted using different theoretical models. A two‐J model, which takes into account both exchange interactions between adjacent copper(II) ions and the Gd‐Cu exchange interactions allows fitting of the χMTvs. T data in the whole temperature range. The values obtained for the exchange parameters are in accord with previously reported parameters for Ln(III)‐Cu(II) 15‐metallacrowns‐5. The 240 GHz powder EPR spectra for 1 were recorded at between 30 and 150 K.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Structural and Magnetic Properties of a {GdCu₅}₂Metallacrown Dimer with a Disulfonate Linker

Pavlishchuk,

Zeller,

Carrella

et al. 2024

Eur J Inorg Chem

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15-Metallacrowns-5 Bearing Light Lanthanides: Topology of Electron Density and NMR Recognition of Mandelate Anion Enantiomers

et al. 2023

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Electronic Structures of Alaninehydroximate 15-Metallacrowns-5 with Lanthanum(III), Cerium(III), and Praseodymium(III) Ions

Zhigulin

2024

J Struct Chem

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Water-Soluble 15-Metallacrown-5 Complexes: Molecular Structures and Properties

Cited by 3 publications

References 80 publications

Structural and Magnetic Properties of a {GdCu₅}₂Metallacrown Dimer with a Disulfonate Linker

Structural and Magnetic Properties of a {GdCu₅}₂Metallacrown Dimer with a Disulfonate Linker

15-Metallacrowns-5 Bearing Light Lanthanides: Topology of Electron Density and NMR Recognition of Mandelate Anion Enantiomers

Electronic Structures of Alaninehydroximate 15-Metallacrowns-5 with Lanthanum(III), Cerium(III), and Praseodymium(III) Ions

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Water-Soluble 15-Metallacrown-5 Complexes: Molecular Structures and Properties

Cited by 3 publications

References 80 publications

Structural and Magnetic Properties of a {GdCu5}2Metallacrown Dimer with a Disulfonate Linker

Structural and Magnetic Properties of a {GdCu5}2Metallacrown Dimer with a Disulfonate Linker

15-Metallacrowns-5 Bearing Light Lanthanides: Topology of Electron Density and NMR Recognition of Mandelate Anion Enantiomers

Electronic Structures of Alaninehydroximate 15-Metallacrowns-5 with Lanthanum(III), Cerium(III), and Praseodymium(III) Ions

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Structural and Magnetic Properties of a {GdCu₅}₂Metallacrown Dimer with a Disulfonate Linker

Structural and Magnetic Properties of a {GdCu₅}₂Metallacrown Dimer with a Disulfonate Linker