Coordinative Self-assembly of π-Electron Magnetic Porphyrins.

π-Electron magnetic compounds on surfaces have emerged as a powerful platform to interrogate spin interactions at the atomic scale, with great potential in spintronics and quantum technologies. A key challenge is organizing these compounds over large length scales, while elucidating their resulting magnetic properties. Herein, we offer a relevant contribution toward this objective, which consists of using on-surface synthesis coupled with coordination chemistry to promote the self-assembly of π-electron magnetic porphyrin species.

A Kagome Lattice of Lanthanide Atoms in a 2D Er-Directed Metal-Organic Coordination Network.

Kagome lattices have attracted much attention due the very interesting properties they can exhibit, both from the electronic and the magnetic points of view, although much of the experimental studies have been reported on 3D metals or 2D nanosheets. In the past few years, on-surface synthesis has allowed the fabrication of strictly monolayer 2D metal-organic networks, many of them containing transition metals. In this paper we report the fabrication and the study of the electronic and magnetic properties of a monolayer 2D metal-organic network where the nodes are lanthanide atoms forming a kagome lattice.

On-surface synthesis of porous graphene nanoribbons mediated by phenyl migration.

Advancements in the on-surface synthesis of atomically precise graphene nanostructures are propelled by the introduction of innovative precursor designs and reaction types. Until now, the latter has been confined to cross-coupling and cyclization reactions that involve the cleavage of specific atoms or groups. In this article, we elucidate how the migration of phenyl substituents attached to graphene nanoribbons can be harnessed to generate arrays of [18]-annulene pores at the edges of the nanostructures.