Dysprosium-directed metallosupramolecular network on graphene/Ir(111)†
a
Sofia O.
Parreiras,
a
José I.
Urgel,
a
José M.
Gallego,
a
José R.
Galán-Mascarós,
bc
José I.
Martínez,
*d
Pablo
Ballester,
*bc
David
Écija
*a
Abstract
The interest in exploiting the unique properties of lanthanides has led to the recent design of two-dimensional coordination networks incorporating f-block elements on metallic surfaces. In order to take this field to the next step of progression, it is necessary to electronically decouple these two-dimensional architectures from the metallic surface underneath. As a first step in this direction, we report the formation of dysprosium-directed metal–organic networks employing three-fold ligands as molecular linkers equipped with terminal carbonitrile functional groups on weakly interacting substrates such as Au(111) and graphene/Ir(111). We observe on both substrates identical quasi-hexagonal Dy–carbonitrile coordination networks based on majority five-fold nodes. Our findings provide perspectives for the formation of lanthanide coordination networks on graphene and related sp2 materials grown on metals.
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