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

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

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...

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Bibliographic Details
Main Authors: Kristina A. Smirnova, Yulia O. Edilova, Mikhail A. Kiskin, Artem S. Bogomyakov, Yulia S. Kudyakova, Marina S. Valova, Galina V. Romanenko, Pavel A. Slepukhin, Victor I. Saloutin, Denis N. Bazhin
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:International Journal of Molecular Sciences
Subjects:
β-diketonates
lanthanide
luminescence
single-ion magnet
crystal packing
Online Access:https://www.mdpi.com/1422-0067/24/11/9778
Description
Summary: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 environment of heterometallic β-diketonates on the luminescent properties (quantum yields, phosphorescence lifetimes for Eu, Tb, Dy complexes) and single-ion magnet behavior (<i>U</i><sub>eff</sub> for Dy complexes) is revealed.
ISSN:1661-6596
1422-0067

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