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Title

Stable organic radical stacked by in situ coordination to rare earth cations in MOF materials

AuthorsGándara Barragán, Felipe ; Snejko, Natalia ; Andrés, Alicia de; Gutiérrez-Puebla, Enrique ; Monge, M. Ángeles
Issue Date2012
PublisherRoyal Society of Chemistry (Great Britain)
CitationRSC Advances 2(3): 949-955 (2012)
AbstractWith the correct choice of the solvothermal conditions, we have achieved the unprecedented in situ formation of the free radical form of the anthraquinone-1,5-disulfonate molecule, and its favorable organization. The semiquinone radicals are coordinated to rare-earth cations to produce a 2D framework with a very high charge mobility and electric conductivity through the π-π-interactions. The existence of AQDS 3- anion radicals is proven on the base of: i) the electrical neutrality: elemental analyses for the different lanthanide RPF-8 bulks, the maximum residual electron densities in the structure, rule out the existence of any other neutralizing ion, ii) the geometrical modifications in the antraquinone molecules, and iii) although less definitive, due to the low magnetic moment μ = 0.39 μ B, the exhibited paramagnetism for the La (3+) with no unpaired electrons. © 2012 The Royal Society of Chemistry.
URIhttp://hdl.handle.net/10261/75584
DOI10.1039/c1ra00447f
Identifiersdoi: 10.1039/c1ra00447f
issn: 2046-2069
Appears in Collections:(ICMM) Artículos
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