Single molecule magnets of cobalt and zinc homo- and heterometallic coordination polymers prepared by a one-step synthetic procedure
Portoles-Gil, Nuria (Institut de Ciència de Materials de Barcelona)
Gómez-Coca, Silvia (Universitat de Barcelona. Departament de Química Inorgànica i Orgànica)
Vallcorba Valls, Oriol (ALBA Laboratori de Llum de Sincrotró)
Marbán, Gregorio (Instituto de Ciencia y Tecnología del Carbono)
Aliaga-Alcalde, Núria (Institució Catalana de Recerca i Estudis Avançats)
Lopez-Periago, Ana M (Instituto de Ciencia de Materiales de Barcelona)
Ayllon, Jose Antonio (Universitat Autònoma de Barcelona. Departament de Química)
Domingo, Concepción (Instituto de Ciencia de Materiales de Barcelona)

Date:	2020
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(), i. e. , homometallic CP of Zn() and bimetallic CP of Zn()/Co(), were isostructural. Contrarily, homometallic CPs of Co() were precipitated as an isostructural phase of Zn() 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() were studied. Remarkably, at low temperatures with the application of an external field, they acted as field-induced single molecule magnets. One-pot synthesis of heterometallic (Zn()/Co()) nodes directing CP magnetic behaviour to single molecule magnets.
Grants:	Agencia Estatal de Investigación CTQ2017-83632 Agencia Estatal de Investigación PGC2018-093863-B-C21 Ministerio de Economía y Competitividad MAT2016-77852-C2-1-R Ministerio de Economía y Competitividad SEV-2015-0496 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/BP-00080 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1277
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Published in:	RSC advances, Vol. 10, Issue 73 (December 2020) , p. 45090-45104, ISSN 2046-2069

DOI: 10.1039/d0ra09132d
PMID: 35516268

15 p, 2.2 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > The ALBA Synchrotron
Articles > Research articles
Articles > Published articles