Monomolecular covalent honeycomb nanosheets produced by surface-mediated polycondensation between 1,3,5-triamino benzene and benzene-1,3,5-tricarbox aldehyde on Au(111)

Masashi Kunitake; Ryota Tanoue; Rintaro Higuchi; Soichiro Yoshimoto; Ryusei Haraguchi; Shinobu Uemura; Nobuo Kimizuka; Adam Z. Stieg; James K. Gimzewski

doi:10.1039/D0NA00180E

Monomolecular covalent honeycomb nanosheets produced by surface-mediated polycondensation between 1,3,5-triamino benzene and benzene-1,3,5-tricarbox aldehyde on Au(111)†

Masashi Kunitake,

*^a Ryota Tanoue,^b Rintaro Higuchi,

^b Soichiro Yoshimoto,^a Ryusei Haraguchi,^b Shinobu Uemura,

^c Nobuo Kimizuka,

^d Adam Z. Stieg

^ef and James K. Gimzewski^efg

Author affiliations

* Corresponding authors

^a Institute of Industrial Nanomaterials, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
E-mail: kunitake@kumamoto-u.ac.jp

^b Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan

^c Faculty of Engineering and Design, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0396, Japan

^d Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems (CMS), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan

^e California NanoSystems Institute, 570 Westwood Plaza, Los Angeles, CA 90095, USA

^f WPI Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

^g Department of Chemistry and Biochemistry, University of California-Los Angeles, 607 Charles E. Young Drive East, Los Angeles, CA 90095, USA

Abstract

Fabrication of a two-dimensional covalent network of honeycomb nanosheets comprising small 1,3,5-triamino benzene and benzene-1,3,5-tricarboxaldehyde aromatic building blocks was conducted on Au(111) in a pH-controlled aqueous solution. In situ scanning tunneling microscopy revealed a large defect-free and homogeneous honeycomb π-conjugated nanosheet at the Au(111)/liquid interface. An electrochemical potential dependence indicated that the nanosheets were the result of thermodynamic self-assembly based not only on the reaction equilibrium but also on the adsorption (partition) equilibrium, which was controlled by the building block surface coverage as a function of electrode potential.

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Article information

DOI: https://doi.org/10.1039/D0NA00180E
Article type: Paper
Submitted: 04 Mar 2020
Accepted: 27 May 2020
First published: 28 May 2020
This article is Open Access

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Nanoscale Adv., 2020,2, 3202-3208

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Monomolecular covalent honeycomb nanosheets produced by surface-mediated polycondensation between 1,3,5-triamino benzene and benzene-1,3,5-tricarbox aldehyde on Au(111)

M. Kunitake, R. Tanoue, R. Higuchi, S. Yoshimoto, R. Haraguchi, S. Uemura, N. Kimizuka, A. Z. Stieg and J. K. Gimzewski, Nanoscale Adv., 2020, 2, 3202 DOI: 10.1039/D0NA00180E

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Nanoscale Advances

Monomolecular covalent honeycomb nanosheets produced by surface-mediated polycondensation between 1,3,5-triamino benzene and benzene-1,3,5-tricarbox aldehyde on Au(111)†

Abstract

Supplementary files

Article information

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Monomolecular covalent honeycomb nanosheets produced by surface-mediated polycondensation between 1,3,5-triamino benzene and benzene-1,3,5-tricarbox aldehyde on Au(111)

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