Design and synthesis of a family of 1D-lanthanide-coordination polymers showing luminescence and slow relaxation of the magnetization

TitleDesign and synthesis of a family of 1D-lanthanide-coordination polymers showing luminescence and slow relaxation of the magnetization
Publication TypeJournal Article
Year of Publication2018
AuthorsRuiz-Muelle ABelén, García-García A, García-Valdivia AA, Oyarzabal I, Cepeda J, Seco JM, Colacio E, Rodríguez-Diéguez A, Fernandez I
JournalDalton Trans.
Pagination-
Abstract

We have designed and synthesized eight isostructural 1D coordination polymers (CPs) with the general formula {[Ln(aapc)3(DMF)]}n [where Ln(iii) = Y (2){,} La (3){,} Nd (4){,} Eu (5){,} Gd (6){,} Tb (7){,} Dy (8){,} Er (9); and aapc = 3-((anthraquinone-1-yl)amino)propanoate]. These CPs consist of Ln-carboxylate infinite rods in which the bulky anthraquinone scaffolds arise from it in such a way that the resulting supramolecular packing exhibits isolated 1D chains. Solution structures have been corroborated through NMR methods including PGSE and EXSY NMR studies and{,} due to the presence of lanthanide ions{,} magnetic and luminescence properties have been studied. Alternating current magnetic measurements of compound 8 show slow relaxation of the magnetization{,} a characteristic of single molecule magnets (SMMs). The evaluation of solid-state photophysical properties reveals that the aapc scaffold sensitizes lanthanide(iii) based emission of compounds 4–9 both in the visible and near-infrared (NIR) regions at 10 K.

URLhttp://dx.doi.org/10.1039/C8DT02592D
DOI10.1039/C8DT02592D
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