Parallel-mode EPR spectra of the hexaaqua manganese(II) Ion in tetrahedral symmetry

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Standard

Parallel-mode EPR spectra of the hexaaqua manganese(II) Ion in tetrahedral symmetry. / Henrichsen, Margrete Juel; Bendix, Jesper; Weihe, Høgni.

I: Comptes Rendus Chimie, Bind 27, 2024.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Henrichsen, MJ, Bendix, J & Weihe, H 2024, 'Parallel-mode EPR spectra of the hexaaqua manganese(II) Ion in tetrahedral symmetry', Comptes Rendus Chimie, bind 27. https://doi.org/10.5802/crchim.266

APA

Henrichsen, M. J., Bendix, J., & Weihe, H. (2024). Parallel-mode EPR spectra of the hexaaqua manganese(II) Ion in tetrahedral symmetry. Comptes Rendus Chimie, 27. https://doi.org/10.5802/crchim.266

Vancouver

Henrichsen MJ, Bendix J, Weihe H. Parallel-mode EPR spectra of the hexaaqua manganese(II) Ion in tetrahedral symmetry. Comptes Rendus Chimie. 2024;27. https://doi.org/10.5802/crchim.266

Author

Henrichsen, Margrete Juel ; Bendix, Jesper ; Weihe, Høgni. / Parallel-mode EPR spectra of the hexaaqua manganese(II) Ion in tetrahedral symmetry. I: Comptes Rendus Chimie. 2024 ; Bind 27.

Bibtex

@article{22793a5c003c48bc81cc6bb7b19f03e6,

title = "Parallel-mode EPR spectra of the hexaaqua manganese(II) Ion in tetrahedral symmetry",

abstract = "Parallel-mode X-band EPR spectra of the manganese(II) hexaaqua ion as substitutional impurity in Cs[Mg(H2O)6]AsO4 are presented and interpreted. In this lattice the aqua ion, considering also the disposition of the hydrogen atoms, occupies a crystallographic site with tetrahedral symmetry. This rare situation enables that the line positions as well as the intensities in the parallel-mode EPR spectra can be modelled with a simple three-parameter cubic-symmetry spin Hamiltonian, including the isotropic Zeeman interaction (g) pertinent to the S = 5/2 electronic spin, the isotropic hyperfine interaction (A), between the electronic spin and the I = 5/2 nuclear spin, and the cubic splitting (a) of the S = 5/2 manifold. A simple formalism, based on perturbation theory to grossly account for the observed intensities, is presented. We observe all parallel-mode-allowed hyperfine transitions associated with all fine-structure transitions.",

keywords = "Cubic symmetry, Flip-flop transitions, Hyperfine interaction, Manganese(II), Parallel-mode EPR",

author = "Henrichsen, {Margrete Juel} and Jesper Bendix and H{\o}gni Weihe",

year = "2024",

doi = "10.5802/crchim.266",

language = "English",

volume = "27",

journal = "Comptes Rendus Chimie",

issn = "1631-0748",

publisher = "Academie des sciences",

}

RIS

TY - JOUR

T1 - Parallel-mode EPR spectra of the hexaaqua manganese(II) Ion in tetrahedral symmetry

AU - Henrichsen, Margrete Juel

AU - Bendix, Jesper

AU - Weihe, Høgni

PY - 2024

Y1 - 2024

N2 - Parallel-mode X-band EPR spectra of the manganese(II) hexaaqua ion as substitutional impurity in Cs[Mg(H2O)6]AsO4 are presented and interpreted. In this lattice the aqua ion, considering also the disposition of the hydrogen atoms, occupies a crystallographic site with tetrahedral symmetry. This rare situation enables that the line positions as well as the intensities in the parallel-mode EPR spectra can be modelled with a simple three-parameter cubic-symmetry spin Hamiltonian, including the isotropic Zeeman interaction (g) pertinent to the S = 5/2 electronic spin, the isotropic hyperfine interaction (A), between the electronic spin and the I = 5/2 nuclear spin, and the cubic splitting (a) of the S = 5/2 manifold. A simple formalism, based on perturbation theory to grossly account for the observed intensities, is presented. We observe all parallel-mode-allowed hyperfine transitions associated with all fine-structure transitions.

AB - Parallel-mode X-band EPR spectra of the manganese(II) hexaaqua ion as substitutional impurity in Cs[Mg(H2O)6]AsO4 are presented and interpreted. In this lattice the aqua ion, considering also the disposition of the hydrogen atoms, occupies a crystallographic site with tetrahedral symmetry. This rare situation enables that the line positions as well as the intensities in the parallel-mode EPR spectra can be modelled with a simple three-parameter cubic-symmetry spin Hamiltonian, including the isotropic Zeeman interaction (g) pertinent to the S = 5/2 electronic spin, the isotropic hyperfine interaction (A), between the electronic spin and the I = 5/2 nuclear spin, and the cubic splitting (a) of the S = 5/2 manifold. A simple formalism, based on perturbation theory to grossly account for the observed intensities, is presented. We observe all parallel-mode-allowed hyperfine transitions associated with all fine-structure transitions.

KW - Cubic symmetry

KW - Flip-flop transitions

KW - Hyperfine interaction

KW - Manganese(II)

KW - Parallel-mode EPR

U2 - 10.5802/crchim.266

DO - 10.5802/crchim.266

M3 - Journal article

AN - SCOPUS:85192998301

VL - 27

JO - Comptes Rendus Chimie

JF - Comptes Rendus Chimie

SN - 1631-0748

ER -

ID: 397906354