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Intra- and intermolecular self-assembly of a 20-nm-wide supramolecular hexagonal grid.

ABSTRACT: For the past three decades, the coordination-driven self-assembly of three-dimensional structures has undergone rapid progress; however, parallel efforts to create large discrete two-dimensional architectures-as opposed to polymers-have met with limited success. The synthesis of metallo-supramolecular systems with well-defined shapes and sizes in the range of 10-100?nm remains challenging. Here we report the construction of a series of giant supramolecular hexagonal grids, with diameters on the order of 20?nm and molecular weights greater than 65?kDa, through a combination of intra- and intermolecular metal-mediated self-assembly steps. The hexagonal intermediates and the resulting self-assembled grid architectures were imaged at submolecular resolution by scanning tunnelling microscopy. Characterization (including by scanning tunnelling spectroscopy) enabled the unambiguous atomic-scale determination of fourteen hexagonal grid isomers.

SUBMITTER: Zhang Z

PROVIDER: S-EPMC7375338 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Intra- and intermolecular self-assembly of a 20-nm-wide supramolecular hexagonal grid.

Zhang Zhe Z Li Yiming Y Song Bo B Zhang Yuan Y Jiang Xin X Wang Ming M Tumbleson Ryan R Liu Changlin C Wang Pingshan P Hao Xin-Qi XQ Rojas Tomas T Ngo Anh T AT Sessler Jonathan L JL Newkome George R GR Hla Saw Wai SW Li Xiaopeng X

Nature chemistry 20200413 5

For the past three decades, the coordination-driven self-assembly of three-dimensional structures has undergone rapid progress; however, parallel efforts to create large discrete two-dimensional architectures-as opposed to polymers-have met with limited success. The synthesis of metallo-supramolecular systems with well-defined shapes and sizes in the range of 10-100 nm remains challenging. Here we report the construction of a series of giant supramolecular hexagonal grids, with diameters on the ...[more]

PMID: 32284575

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Intra- and intermolecular self-assembly of a 20-nm-wide supramolecular hexagonal grid.

Publications

Intra- and intermolecular self-assembly of a 20-nm-wide supramolecular hexagonal grid.

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