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Title

Conservation of Nickel Ion Single‐Active Site Character in a Bottom‐Up Constructed π‐Conjugated Molecular Network.

Authors

Baranowski, Daniel; Cojocariu, Iulia; Sala, Alessandro; Africh, Cristina; Comelli, Giovanni; Schio, Luca; Tormen, Massimo; Floreano, Luca; Feyer, Vitaliy; Schneider, Claus M.

Abstract

On‐surface chemistry holds the potential for ultimate miniaturization of functional devices. Porphyrins are promising building‐blocks in exploring advanced nanoarchitecture concepts. More stable molecular materials of practical interest with improved charge transfer properties can be achieved by covalently interconnecting molecular units. On‐surface synthesis allows to construct extended covalent nanostructures at interfaces not conventionally available. Here, we address the synthesis and properties of covalent molecular network composed of interconnected constituents derived from halogenated nickel tetraphenylporphyrin on Au(111). We report that the π‐extended two‐dimensional material exhibits dispersive electronic features. Concomitantly, the functional Ni cores retain the same single‐active site character of their single‐molecule counterparts. This opens new pathways when exploiting the high robustness of transition metal cores provided by bottom‐up constructed covalent nanomeshes.

Subjects

NICKEL; TRANSITION metals; SCANNING probe microscopy; CHARGE transfer; IONS; POLYMER networks

Publication

Angewandte Chemie, 2022, Vol 134, Issue 44, p1

ISSN

0044-8249

Publication type

Academic Journal

DOI

10.1002/ange.202210326

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