Solvent-induced high-spin transition in double-decker 3d-4f metallacrowns
Alhassanat A, Voelker L, Gamer C, Rauguth A, Kredel A, Luo C, Radu F, Sapozhnik AA, Mashoff T, Rentschler E, Elmers HJ (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 99
Article Number: 104404
Journal Issue: 10
DOI: 10.1103/PhysRevB.99.104404
Abstract
Element-specific magnetic spin and orbital magnetic moments of 3d-4f double-decker metallacrown molecules have been investigated using x-ray magnetic circular dichroism. The double-decker metallacrowns comprise one rare-earth Gd(III) or Tb(III) ion embedded between two squared scaffolds of four Ni(II) ions. We observe a strong increase of the Ni(II) moments if the molecules are dissolved in methanol, indicating a spin crossover from a low-spin to a high-spin state. In contrast, dichloromethane does not change the spin state. This result is explained by a change of the coordination environment of nickel. The comparison of charge-transfer multiplet calculations with the experimental absorption spectra confirm the different ligand fields.
Involved external institutions
Johannes Gutenberg-Universität Mainz (JGU)
Germany (DE)
Helmholtz-Zentrum Berlin für Materialien und Energie (HZB)
Germany (DE)
Germany (DE)
Helmholtz-Zentrum Berlin für Materialien und Energie (HZB)
Germany (DE)
How to cite
APA:
Alhassanat, A., Voelker, L., Gamer, C., Rauguth, A., Kredel, A., Luo, C.,... Elmers, H.J. (2019). Solvent-induced high-spin transition in double-decker 3d-4f metallacrowns. Physical Review B, 99(10). https://doi.org/10.1103/PhysRevB.99.104404
MLA:
Alhassanat, Ahmed, et al. "Solvent-induced high-spin transition in double-decker 3d-4f metallacrowns." Physical Review B 99.10 (2019).
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