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Selective Lanthanide Distribution within a Comprehensive Series of Heterometallic [LnPr] Complexes

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The preparation of heterometallic, lanthanide-only complexes is an extremely difficult synthetic challenge. By a ligandbased strategy, a complete isostructural series of dinuclear heterometallic [LnPr] complexes has been synthesized and structurally characterized. The two different coordination sites featured in this molecular entity allow study of the preferences of the praseodymium ion for a specific position depending on the ionic radii of the accompanying lanthanide partner. The purity of each heterometallic moiety has been evaluated in the solid state and in solution by means of crystallographic and spectrometric methods, respectively, revealing the limits of this strategy for ions with similar sizes. DFT calculations have been carried out to support the experimental results, confirming the nature of the siteselective lanthanide distribution. The predictable selectivity of this system has been exploited to assess the magnetic properties of the [DyPr] and [LuPr] derivatives, showing that the origin of the slow dynamics observed in the former arises from the dysprosium ion.

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Articles publicats en revistes (Química Inorgànica i Orgànica)

# metadata.dc.title[].value
Selective Lanthanide Distribution within a Comprehensive Series of Heterometallic [LnPr] Complexes