Magnetic exchange, anisotropy and excitonic fluctuations in a [Ni II7] Anderson wheel
Payne EH, Wilson LRB, Singh MK, Nichol GS, Stewart JR, Garcia-Sakai V, Ewings RA, Lane H, Schnack J, Stock C, Brechin EK (2023)
Inorganic Chemistry Frontiers.
Zeitschriftenaufsatz
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Autor*in
Payne, Emily H.;
Wilson, Lucinda R. B.;
Singh, Mukesh K.;
Nichol, Gary S.;
Stewart, J. R.;
Garcia-Sakai, V.;
Ewings, R. A.;
Lane, Harry;
Schnack, JürgenUniBi 
;
Stock, Chris;
Brechin, Euan K.
;
Stock, Chris;
Brechin, Euan K.Abstract / Bemerkung
The solvothermal reaction of Ni(ClO4)(2)center dot 6H(2)O with hmpH and picH in a basic MeOH solution affords [Ni-7(hmp)(7.55)(pic)(4.45)](ClO4)(2)center dot 6MeOH (1 center dot 6MeOH) directly upon cooling the mother liquor. The metallic skeleton of 1 describes a [Ni-7(II)] centred hexagon, commonly referred to as an Anderson wheel. Magnetic measurements reveal ferromagnetic exchange between the central Ni ion and the ring Ni ions, and anti-ferromagnetic exchange between neighbouring ring Ni ions. They also confirm the presence of easy-plane anisotropy for the central Ni ion, and easy-axis anisotropy for the ring Ni ions, in agreement with DFT calculations and neutron scattering. For the analysis of the latter we apply an excitonic formalism using a Green's function response theory.
Erscheinungsjahr
2023
Zeitschriftentitel
Inorganic Chemistry Frontiers
ISSN
2052-1553
Page URI
https://pub.uni-bielefeld.de/record/2985369
Zitieren
Payne EH, Wilson LRB, Singh MK, et al. Magnetic exchange, anisotropy and excitonic fluctuations in a [Ni II7] Anderson wheel. Inorganic Chemistry Frontiers. 2023.
Payne, E. H., Wilson, L. R. B., Singh, M. K., Nichol, G. S., Stewart, J. R., Garcia-Sakai, V., Ewings, R. A., et al. (2023). Magnetic exchange, anisotropy and excitonic fluctuations in a [Ni II7] Anderson wheel. Inorganic Chemistry Frontiers. https://doi.org/10.1039/d3qi02307a
Payne, Emily H., Wilson, Lucinda R. B., Singh, Mukesh K., Nichol, Gary S., Stewart, J. R., Garcia-Sakai, V., Ewings, R. A., et al. 2023. “Magnetic exchange, anisotropy and excitonic fluctuations in a [Ni II7] Anderson wheel”. Inorganic Chemistry Frontiers.
Payne, E. H., Wilson, L. R. B., Singh, M. K., Nichol, G. S., Stewart, J. R., Garcia-Sakai, V., Ewings, R. A., Lane, H., Schnack, J., Stock, C., et al. (2023). Magnetic exchange, anisotropy and excitonic fluctuations in a [Ni II7] Anderson wheel. Inorganic Chemistry Frontiers.
Payne, E.H., et al., 2023. Magnetic exchange, anisotropy and excitonic fluctuations in a [Ni II7] Anderson wheel. Inorganic Chemistry Frontiers.
E.H. Payne, et al., “Magnetic exchange, anisotropy and excitonic fluctuations in a [Ni II7] Anderson wheel”, Inorganic Chemistry Frontiers, 2023.
Payne, E.H., Wilson, L.R.B., Singh, M.K., Nichol, G.S., Stewart, J.R., Garcia-Sakai, V., Ewings, R.A., Lane, H., Schnack, J., Stock, C., Brechin, E.K.: Magnetic exchange, anisotropy and excitonic fluctuations in a [Ni II7] Anderson wheel. Inorganic Chemistry Frontiers. (2023).
Payne, Emily H., Wilson, Lucinda R. B., Singh, Mukesh K., Nichol, Gary S., Stewart, J. R., Garcia-Sakai, V., Ewings, R. A., Lane, Harry, Schnack, Jürgen, Stock, Chris, and Brechin, Euan K. “Magnetic exchange, anisotropy and excitonic fluctuations in a [Ni II7] Anderson wheel”. Inorganic Chemistry Frontiers (2023).
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