Dysprosium β-diketonate compounds have recently gained a lot of attention due to their intriguing multifunc- tional properties. In this paper, a series of “Dy(hfa)3•glyme” adducts have been prepared through a one-pot reaction, in dichloromethane, from dysprosium (III) acetate monohydrate, hexafluoroacetylacetone and glyme [Hhfa = 1,1,1,5,5,5-hexafluoroacetylacetone, glyme = bis-(2-methoxyethyl)ether, 2,5,8,11-tetraoxadodecane, 2,5,8,11,14-pentaoxapentadecane]. Based on the length of the polyether, various coordination frameworks have been obtained going from a mononuclear [Dy(hfa)3•diglyme] adduct, to a polymeric chain system for the [Dy(hfa)3•2H2O•triglyme], and an ionic structure for the [Dy(hfa)2•tetraglyme]+[Dy(hfa)4]− . The relationship between the coordination framework in the “Dy(hfa)3•glyme” series and the magnetic and luminescent prop- erties has been deeply investigated.

Multifunctional “Dy(hfa)3•glyme” adducts: Synthesis and magnetic/luminescent behaviour

Mezzalira, Claudia;Mazzer, Francesco;Speghini, Adolfo
;
2022-01-01

Abstract

Dysprosium β-diketonate compounds have recently gained a lot of attention due to their intriguing multifunc- tional properties. In this paper, a series of “Dy(hfa)3•glyme” adducts have been prepared through a one-pot reaction, in dichloromethane, from dysprosium (III) acetate monohydrate, hexafluoroacetylacetone and glyme [Hhfa = 1,1,1,5,5,5-hexafluoroacetylacetone, glyme = bis-(2-methoxyethyl)ether, 2,5,8,11-tetraoxadodecane, 2,5,8,11,14-pentaoxapentadecane]. Based on the length of the polyether, various coordination frameworks have been obtained going from a mononuclear [Dy(hfa)3•diglyme] adduct, to a polymeric chain system for the [Dy(hfa)3•2H2O•triglyme], and an ionic structure for the [Dy(hfa)2•tetraglyme]+[Dy(hfa)4]− . The relationship between the coordination framework in the “Dy(hfa)3•glyme” series and the magnetic and luminescent prop- erties has been deeply investigated.
Single molecule magnet Dysprosium β-diketonate glyme adduct Luminescent properties Coordination framework One-pot reaction
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11562/1062859
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