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A Four‐Coordinate Pr ⁴⁺ Imidophosphorane Complex

https://doi.org/10.1002/anie.202409789

Boggiano, Andrew C; Chowdhury, Sabyasachi Roy; Roy, Michael D; Bernbeck, Maximilian G; Greer, Samuel M; Vlaisavljevich, Bess; La_Pierre, Henry S (September 2024, Angewandte Chemie International Edition)

Abstract The imidophosphorane ligand, [NP^tBu₃]⁻(^tBu=tert‐butyl), enables isolation of a pseudo‐tetrahedral, tetravalent praseodymium complex, [Pr⁴⁺(NP^tBu₃)₄] (1‐Pr), which is characterized by a suite of physical characterization methods including single‐crystal X‐ray diffraction, electron paramagnetic resonance, and L₃‐edge X‐ray near‐edge spectroscopies. Variable‐temperature direct‐current magnetic susceptibility data, supported by multiconfigurational quantum chemical calculations, demonstrate that the electronic structure diverges from the isoelectronic Ce³⁺analogue, driven by increased crystal field. The four‐coordinate environment around Pr⁴⁺in1‐Pr, which is unparalleled in reported extended solid systems, provides a unique opportunity to study the interplay between crystal field splitting and spin‐orbit coupling in a molecular tetravalent lanthanide within a pseudo‐tetrahedral coordination geometry.
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Intuitive Control of Low-Energy Magnetic Excitations via Directed Dipolar Interactions in a Series of Er(III)-Based Complexes

https://doi.org/10.1021/jacs.2c03236

Orlova, Angelica P.; Hilgar, Jeremy D.; Bernbeck, Maximilian G.; Gembicky, Milan; Rinehart, Jeffrey D. (June 2022, Journal of the American Chemical Society)

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Dipolar Coupling as a Mechanism for Fine Control of Magnetic States in ErCOT-Alkyl Molecular Magnets

https://doi.org/10.1021/jacs.3c10412

Bernbeck, Maximilian G.; Orlova, Angelica P.; Hilgar, Jeremy D.; Gembicky, Milan; Ozerov, Mykhaylo; Rinehart, Jeffrey D. (March 2024, Journal of the American Chemical Society)
Probing axial anisotropy in dinuclear alkoxide-bridged Er–COT single-molecule magnets

https://doi.org/10.1016/j.poly.2019.114206

Bernbeck, Maximilian G.; Hilgar, Jeremy D.; Rinehart, Jeffrey D. (January 2020, Polyhedron)

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Molecular Network Approach to Anisotropic Ising Lattices: Parsing Magnetization Dynamics in Er ³⁺ Systems with 0–3-Dimensional Spin Interactivity

https://doi.org/10.1021/jacs.3c08946

Orlova, Angelica P.; Varley, Maxwell S.; Bernbeck, Maximilian G.; Kirkpatrick, Kyle M.; Bunting, Philip C.; Gembicky, Milan; Rinehart, Jeffrey D. (September 2023, Journal of the American Chemical Society)

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