Chemical engineering of quasicrystal approximants in lanthanide-based coordination solids

Laura Voigt, Mariusz Kubus and Kasper S. Pedersen ()
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Laura Voigt: Technical University of Denmark
Mariusz Kubus: Technical University of Denmark
Kasper S. Pedersen: Technical University of Denmark

Nature Communications, 2020, vol. 11, issue 1, 1-6

Abstract: Abstract Tessellation of self-assembling molecular building blocks is a promising strategy to design metal-organic materials exhibiting geometrical frustration and ensuing frustrated physical properties. Appearing in two-dimensional quasiperiodic phases, tilings consisting of five-vertex nodes are regarded as approximants for quasicrystals. Unfortunately, these structural motifs are exceedingly rare due to the complications of acquiring five-fold coordination confined to the plane. Lanthanide ions display the sufficient coordinative plasticity, and large ionic radii, to allow their incorporation into irregular molecule-based arrays. We herein present the use of ytterbium(II) as a five-vertex node in a two-dimensional coordination solid, YbI2(4,4′-bipyridine)2.5. The semi-regular Archimedean tessellation structure verges on quasicrystallinity and paves the way for lanthanide-based metal-organic materials with interesting photonic and magnetic properties.

Date: 2020
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DOI: 10.1038/s41467-020-18328-5

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