Single molecule magnets of cobalt and zinc homo- and heterometallic coordination polymers prepared by a one-step synthetic procedure

Núria Portolés-Gil, Silvia Gómez-Coca, Oriol Vallcorba, Gregorio Marbán, Núria Aliaga-Alcalde, Ana López-Periago, José A. Ayllón*, Concepción Domingo*

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The synthesis of 1D cobalt and zinc monometallic and heterometallic coordination polymers (CPs) was carried out applying one-pot synthetic methods by using either supercritical carbon dioxide or ethanol as the solvent. A collection of four 1D CPs were thus obtained by the combination of a metal (or a mixture of metals) with the linker 1,4-bis(4-pyridylmethyl)benzene. The used metallic complexes were zinc and cobalt hexafluoroacetylacetonate, which can easily incorporate pyridine ligands in the coordination sphere of the metal centre. Independently of the used solvent, the precipitated phases involving Zn(ii), i.e., homometallic CP of Zn(ii) and bimetallic CP of Zn(ii)/Co(ii), were isostructural. Contrarily, homometallic CPs of Co(ii) were precipitated as an isostructural phase of Zn(ii) or with a different structure, depending on the used solvent. All the structures were resolved by XRD using synchrotron radiation. In addition, the magnetic properties of the new CPs involving Co(ii) were studied. Remarkably, at low temperatures with the application of an external field, they acted as field-induced single molecule magnets.

Original languageUndefined/Unknown
Pages (from-to)45090-45104
Number of pages15
JournalRSC Advances
Volume10
Issue number73
DOIs
Publication statusPublished - 21 Dec 2020

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