Novel Lanthanide (III) Complexes Derived from an Imidazole–Biphenyl–Carboxylate Ligand: Synthesis, Structure and Luminescence Properties
A series of neutral mononuclear lanthanide complexes <b>[Ln(HL)<sub>2</sub>(NO<sub>3</sub>)<sub>3</sub>]</b> (Ln = La, Ce, Nd, Eu, Gd, Dy, Ho) with rigid bidentate ligand, HL (4′-(1<i>H</i>-imidazol-1-yl)biphenyl-4-carboxylic acid) were syn...
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| Autores principales: | , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/9ad549893bd94f398decd52465cc1b6a |
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| Sumario: | A series of neutral mononuclear lanthanide complexes <b>[Ln(HL)<sub>2</sub>(NO<sub>3</sub>)<sub>3</sub>]</b> (Ln = La, Ce, Nd, Eu, Gd, Dy, Ho) with rigid bidentate ligand, HL (4′-(1<i>H</i>-imidazol-1-yl)biphenyl-4-carboxylic acid) were synthesized under solvothermal conditions. The coordination compounds have been characterized by infrared spectroscopy, thermogravimetry, powder X-ray diffraction and elemental analysis. According to X-ray diffraction, all the complexes are a series of isostructural compounds crystallized in the <i>P2/n</i> monoclinic space group. Additionally, solid-state luminescence measurements of all complexes show that <b>[Eu(HL)<sub>2</sub>(NO<sub>3</sub>)<sub>3</sub>]</b> complex displays the characteristic emission peaks of Eu(III) ion at 593, 597, 615, and 651 nm. |
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