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Two-dimensional self-assembly and co-assembly of two tetracarboxylic acid derivatives investigated by STM.

ABSTRACT: In this work, the two-dimensional self-assembly and co-assembly behaviors of two tetracarboxylic acid derivatives (H₄BDETP and H₄BTB) were investigated by scanning tunneling microscopy (STM). H₄BDETP molecules self-assembled into linear nanostructures, and H₄BTB molecules formed lamellar and tetragonal nanostructures. The formation of a H₄BDETP/H₄BTB co-assembly nanostructure was closely related to the deposition sequence of H₄BDETP and H₄BTB on highly oriented pyrolytic graphite (HOPG). The introduction of H₄BTB into the self-assembly system of H₄BDETP resulted in the emergence of the H₄BDETP/H₄BTB nanostructure, while the addition of H₄BDETP had no effect on the self-assembly system of H₄BTB and a H₄BDETP/H₄BTB co-assembly nanostructure was not obtained.

SUBMITTER: Peng X

PROVIDER: S-EPMC10496876 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature

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Two-dimensional self-assembly and co-assembly of two tetracarboxylic acid derivatives investigated by STM.

Peng Xuan X Gan Linlin L Zhai Wenchao W Chen Xiaoling X Deng Ke K Duan Wubiao W Li Wei W Zeng Qingdao Q

Nanoscale advances 20230803 18

In this work, the two-dimensional self-assembly and co-assembly behaviors of two tetracarboxylic acid derivatives (H4BDETP and H4BTB) were investigated by scanning tunneling microscopy (STM). H4BDETP molecules self-assembled into linear nanostructures, and H4BTB molecules formed lamellar and tetragonal nanostructures. The formation of a H4BDETP/H4BTB co-assembly nanostructure was closely related to the deposition sequence of H<sub ...[more]

PMID: 37705796

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