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Yb3+ can be much better than Dy3+: SMM properties and controllable self-assembly of novel lanthanide 3,5-dinitrobezoate-acetylacetonate complexes

Abstract

First representatives of the binuclear lanthanide 3,5-dinitrobezoate-acetylacetonate complexes, namely isostructural compouds [Ln(dnbz)(acac)2(H2O)(EtOH)]2 (Ln = Eu (1), Gd (2), Tb (3), Dy (4), Ho (5), Er (6), Tm (7), and Yb (8); dnbz – 3,5-dinitrobenzoate anion; acac – acetylacetonate (pentane-2,4-dionate) anion) were prepared and characterized. SMM behavior of Yb compound 8 was shown to be surprisingly less sensitive to the composition of the Yb3+ coordination environment in comparison with that of Dy derivative. For Yb compound 8, the anisotropy barrier is Δeff/kB = 26 K under the dc field of 2000 Oe. This value is the highest one currently known for binuclear Yb complexes.

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Publication details

The article was received on 14 Feb 2018, accepted on 02 Apr 2018 and first published on 02 Apr 2018


Article type: Paper
DOI: 10.1039/C8DT00624E
Citation: Dalton Trans., 2018, Accepted Manuscript
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    Yb3+ can be much better than Dy3+: SMM properties and controllable self-assembly of novel lanthanide 3,5-dinitrobezoate-acetylacetonate complexes

    A. V. Gavrikov, N. Efimov, A. B. Ilyukhin, Z. Dobrohotova and V. M. Novotortsev, Dalton Trans., 2018, Accepted Manuscript , DOI: 10.1039/C8DT00624E

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