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Article Dans Une Revue (Data Paper) Nature Communications Année : 2023

Extending on-surface synthesis from 2D to 3D by cycloaddition with C60

Résumé

Abstract As an efficient molecular engineering approach, on-surface synthesis (OSS) defines a special opportunity to investigate intermolecular coupling at the sub-molecular level and has delivered many appealing polymers. So far, all OSS is based on the lateral covalent bonding of molecular precursors within a single molecular layer; extending OSS from two to three dimensions is yet to be realized. Herein, we address this challenge by cycloaddition between C 60 and an aromatic compound. The C 60 layer is assembled on the well-defined molecular network, allowing appropriate molecular orbital hybridization. Upon thermal activation, covalent coupling perpendicular to the surface via [4 + 2] cycloaddition between C 60 and the phenyl ring of the molecule is realized; the resultant adduct shows frozen orientation and distinct sub-molecular feature at room temperature and further enables lateral covalent bonding via [2 + 2] cycloaddition. This work unlocks an unconventional route for bottom-up precise synthesis of three-dimensional covalently-bonded organic architectures/devices on surfaces.

Dates et versions

hal-04241398 , version 1 (13-10-2023)

Identifiants

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Pengcheng Ding, Shaoshan Wang, Cristina Mattioli, Zhuo Li, Guoqiang Shi, et al.. Extending on-surface synthesis from 2D to 3D by cycloaddition with C60. Nature Communications, 2023, 14 (1), pp.6075. ⟨10.1038/s41467-023-41913-3⟩. ⟨hal-04241398⟩
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