Angewandte Chemie - International Edition
Angewandte Chemie - International Edition
5 years ago

Stabilizing and Organizing Bi3Cu4 and Bi7Cu12 Nanoclusters in Two-Dimensional Metal-Organic Networks

Jun Liu, Hu Xu, Linghao Yan, Nian Lin, Bowen Xia, Guowen Kuang, Qiushi Zhang, Pei Nian Liu
Multinuclear heterometallic nanoclusters with controllable stoichiometry and structure are anticipated to possess promising catalytic, magnetic, and optical properties. Here we demonstrate that heterometallic nanoclusters with precise stoichiometry of Bi3Cu4 and Bi7Cu12 can be stabilized in the scaffold of two-dimensional metal-organic networks on a Cu(111) surface through on-surface metallosupramolecular self-assembly processes. The atomic structures of the nanoclusters were resolved using scanning tunnelling microscopy and density functional theory calculations. The nanoclusters feature highly symmetric planar hexagonal shapes and core-shell charge modulation. The clusters are arranged as triangular lattices with a periodicity that can be tuned by choosing molecules of different size. This work shows that on-surface metallosupramolecular self-assembly creates unique possibilities for the design and synthesis of multinuclear heterometallic nanoclusters.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201800906

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