A {Gd12Na6} Molecular Quadruple-Wheel with a Record Magnetocaloric Effect at Low Magnetic Fields and Temperatures

Tziotzi, Thomais G; Gracia, David; Dalgarno, Scott J; Schnack, Jürgen; Evangelisti, Marco; Brechin, Euan K; Milios, Constantinos J

A {Gd12Na6} Molecular Quadruple-Wheel with a Record Magnetocaloric Effect at Low Magnetic Fields and Temperatures

Tziotzi TG, Gracia D, Dalgarno SJ, Schnack J, Evangelisti M, Brechin EK, Milios CJ (2023)
Journal of the American Chemical Society 145(14): 7743-7747.

Zeitschriftenaufsatz | Veröffentlicht | Englisch

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DOI

https://doi.org/10.1021/jacs.3c01610

Autor*in

Tziotzi, Thomais G; Gracia, David; Dalgarno, Scott J; Schnack, Jürgen^UniBi ; Evangelisti, Marco; Brechin, Euan K; Milios, Constantinos J

Einrichtung

Fakultät für Physik > AG Theorie der Kondensierten Materie

Abstract / Bemerkung

Reaction of Gd(OAc)3·4H2O, salicylaldehyde and CH3ONa in MeCN/MeOH affords [Gd12Na6(OAc)25(HCO2)5(CO3)6(H2O)12]·9H2O.0.5MeCN (1·9H2O.0.5MeCN), whose structure describes a quadruple-wheel consisting of two {Na3} and two {Gd6} rings. The magnetic properties of 1 reveal very weak antiferromagnetic interactions between the GdIII ions, which give rise to a record magnetocaloric effect at low applied magnetic fields and low temperatures. The magnetic entropy change reaches -DeltaSm= 29.3 J kg-1 K-1 for full demagnetization from B = 1 T at T = 0.5 K.

Erscheinungsjahr

2023

Zeitschriftentitel

Journal of the American Chemical Society

Band

145

Ausgabe

Seite(n)

7743-7747

eISSN

1520-5126

Page URI

https://pub.uni-bielefeld.de/record/2978088

Zitieren

Tziotzi TG, Gracia D, Dalgarno SJ, et al. A {Gd12Na6} Molecular Quadruple-Wheel with a Record Magnetocaloric Effect at Low Magnetic Fields and Temperatures. Journal of the American Chemical Society. 2023;145(14):7743-7747.

Tziotzi, T. G., Gracia, D., Dalgarno, S. J., Schnack, J., Evangelisti, M., Brechin, E. K., & Milios, C. J. (2023). A {Gd12Na6} Molecular Quadruple-Wheel with a Record Magnetocaloric Effect at Low Magnetic Fields and Temperatures. Journal of the American Chemical Society, 145(14), 7743-7747. https://doi.org/10.1021/jacs.3c01610

Tziotzi, Thomais G, Gracia, David, Dalgarno, Scott J, Schnack, Jürgen, Evangelisti, Marco, Brechin, Euan K, and Milios, Constantinos J. 2023. “A {Gd12Na6} Molecular Quadruple-Wheel with a Record Magnetocaloric Effect at Low Magnetic Fields and Temperatures”. Journal of the American Chemical Society 145 (14): 7743-7747.

Tziotzi, T. G., Gracia, D., Dalgarno, S. J., Schnack, J., Evangelisti, M., Brechin, E. K., and Milios, C. J. (2023). A {Gd12Na6} Molecular Quadruple-Wheel with a Record Magnetocaloric Effect at Low Magnetic Fields and Temperatures. Journal of the American Chemical Society 145, 7743-7747.

Tziotzi, T.G., et al., 2023. A {Gd12Na6} Molecular Quadruple-Wheel with a Record Magnetocaloric Effect at Low Magnetic Fields and Temperatures. Journal of the American Chemical Society, 145(14), p 7743-7747.

T.G. Tziotzi, et al., “A {Gd12Na6} Molecular Quadruple-Wheel with a Record Magnetocaloric Effect at Low Magnetic Fields and Temperatures”, Journal of the American Chemical Society, vol. 145, 2023, pp. 7743-7747.

Tziotzi, T.G., Gracia, D., Dalgarno, S.J., Schnack, J., Evangelisti, M., Brechin, E.K., Milios, C.J.: A {Gd12Na6} Molecular Quadruple-Wheel with a Record Magnetocaloric Effect at Low Magnetic Fields and Temperatures. Journal of the American Chemical Society. 145, 7743-7747 (2023).

Tziotzi, Thomais G, Gracia, David, Dalgarno, Scott J, Schnack, Jürgen, Evangelisti, Marco, Brechin, Euan K, and Milios, Constantinos J. “A {Gd12Na6} Molecular Quadruple-Wheel with a Record Magnetocaloric Effect at Low Magnetic Fields and Temperatures”. Journal of the American Chemical Society 145.14 (2023): 7743-7747.

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