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Perfluoroalkyl Chain Length Effect on Crystal Packing and [LnO8] Coordination Geometry in Lanthanide-Lithium β-Diketonates: Luminescence and Single-Ion Magnet Behavior.

ABSTRACT: Functionalized perfluoroalkyl lithium β-diketonates (LiL) react with lanthanide(III) salts (Ln = Eu, Gd, Tb, Dy) in methanol to give heterobimetallic Ln-Li complexes of general formula [(LnL3)(LiL)(MeOH)]. The length of fluoroalkyl substituent in ligand was found to affect the crystal packing of complexes. Photoluminescent and magnetic properties of heterobimetallic β-diketonates in the solid state are reported. The effect of the geometry of the [LnO8] coordination environment of heterometallic β-diketonates on the luminescent properties (quantum yields, phosphorescence lifetimes for Eu, Tb, Dy complexes) and single-ion magnet behavior (Ueff for Dy complexes) is revealed.

SUBMITTER: Smirnova KA 

PROVIDER: S-EPMC10253746 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature

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Perfluoroalkyl Chain Length Effect on Crystal Packing and [LnO<sub>8</sub>] Coordination Geometry in Lanthanide-Lithium β-Diketonates: Luminescence and Single-Ion Magnet Behavior.

Smirnova Kristina A KA   Edilova Yulia O YO   Kiskin Mikhail A MA   Bogomyakov Artem S AS   Kudyakova Yulia S YS   Valova Marina S MS   Romanenko Galina V GV   Slepukhin Pavel A PA   Saloutin Victor I VI   Bazhin Denis N DN  

International journal of molecular sciences 20230605 11

Functionalized perfluoroalkyl lithium β-diketonates (LiL) react with lanthanide(III) salts (Ln = Eu, Gd, Tb, Dy) in methanol to give heterobimetallic Ln-Li complexes of general formula [(LnL<sub>3</sub>)(LiL)(MeOH)]. The length of fluoroalkyl substituent in ligand was found to affect the crystal packing of complexes. Photoluminescent and magnetic properties of heterobimetallic β-diketonates in the solid state are reported. The effect of the geometry of the [LnO<sub>8</sub>] coordination environm  ...[more]

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