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Université de Fribourg

Kinetics of ion transport through supramolecular channels in single crystals

Assouma, Cyrille D. ; Crochet, Aurélien ; Chérémond, Yvens ; Giese, Bernd ; Fromm, Katharina M.

In: Angewandte Chemie International Edition, 2013, vol. 52, no. 17, p. 4682–4685

Single-crystal to single-crystal transformations are possible by ion-exchange and transport reactions through supramolecular channels that are composed of crown ether molecules and use trihalide ions as scaffolds. Kinetic measurements of ion transport at different temperatures provide activation energy data and show that a very fast.

Université de Fribourg

The Heterometallic Clusters of Trivalent Rare Earth Metals of [Ln(OPh)₆{Li(dme)}₃], with Ln=Eu and Sm

Maudez, William ; Fromm, Katharina M.

In: Helvetica Chimica Acta, 2009, vol. 92, no. 11, p. 2349-2356

Two new heterobimetallic phenoxide LnIII-Li complexes of formula [Ln(μ₂-OPh)₆{Li(dme)}₃] (Ln=Sm, Eu) have been synthesized and characterized using single-crystal X-ray diffraction. These two compounds are isostructural.