# On-surface synthesis of disilabenzene-bridged covalent organic frameworks

https://mdr.nims.go.jp/datasets/87c017e9-f353-4cf7-b99e-64cf7eb31210

## File

- [20221107 Nat Chem s41557-022-01071-3.pdf](https://mdr.nims.go.jp/filesets/67e914df-bb39-47ff-86cb-c3735d00690f/download) ([Detail](https://mdr.nims.go.jp/filesets/67e914df-bb39-47ff-86cb-c3735d00690f.md))

## Id

87c017e9-f353-4cf7-b99e-64cf7eb31210

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-12-25T01:24:15.809685Z

## Updated at

2024-01-05T13:12:39.468914Z

## Published at

2023-12-28T23:30:19.326273Z

## Doi



## First published url

https://doi.org/10.1038/s41557-022-01071-3

## Date published

2022-11-07

## Recorded date published

2023-1

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: On-surface synthesis of disilabenzene-bridged covalent organic frameworks
  title_type: original
  lang: en

## Description

- description: Substituting carbon with silicon in organic molecules and materials
    has long been an attractive way to modify their electronic structure and properties.
    Silicon-doped graphene-based materials are known to exhibit exotic properties,
    yet conjugated organic materials with atomically precise Si substitution have
    remained difficult to prepare. Here we present the on-surface synthesis of one-
    and two-dimensional covalent organic frameworks whose backbones contain 1,4-disilabenzene
    (C4Si2) linkers. Silicon atoms were first deposited on a Au(111) surface, forming
    a AuSix film on annealing. The subsequent deposition and annealing of a bromo-substituted
    polyaromatic hydrocarbon precursor (triphenylene or pyrene) on this surface led
    to the formation of the C4Si2-bridged networks, which were characterized by a
    combination of high-resolution scanning tunnelling microscopy and photoelectron
    spectroscopy supported by density functional theory calculations. Each Si in a
    hexagonal C4Si2 ring was found to be covalently linked to one terminal Br atom.
    For the linear structure obtained with the pyrene-based precursor, the C4Si2 rings
    were converted into C4Si pentagonal siloles by further annealing.
  description_type: abstract
  lang: en

## Creator

- name: Kewei Sun
  role: author
  orcid: https://orcid.org/0000-0002-1835-243X
  organization: National Institute for Materials Science
- name: Orlando J. Silveira
  role: author
  organization: Aalto University
- name: Yujing Ma
  role: author
  organization: National Institute for Materials Science
- name: Yuri Hasegawa
  role: author
  organization: Institute for Molecular Science
- name: Michio Matsumoto
  role: author
  orcid: https://orcid.org/0000-0002-6037-0228
  organization: National Institute for Materials Science
- name: Satoshi Kera
  role: author
  organization: Institute for Molecular Science
- name: Ondřej Krejčí
  role: author
  orcid: https://orcid.org/0000-0002-4948-4312
  organization: Aalto University
- name: Adam S. Foster
  role: author
  orcid: https://orcid.org/0000-0001-5371-5905
  organization: Aalto University
- name: Shigeki Kawai
  role: author
  orcid: https://orcid.org/0000-0003-2128-0120
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: Springer Nature

## Managing organization



## Keyword

- subject: on-surface synthesis
  schema: not_defined
- subject: disilabenzene-bridged covalent organic frameworks
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nature Chemistry
  issn: '17554330'
  volume: '15'
  start_page: 136
  end_page: 142

## Conference



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## Instrument



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



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## Fileset

- id: 67e914df-bb39-47ff-86cb-c3735d00690f
  filename: 20221107 Nat Chem s41557-022-01071-3.pdf
  content_type: application/pdf
  size: 4794729
  md5: ebdd1bda8903a29ca76cafa02571e691

## Thumbnail

fileset_id: 67e914df-bb39-47ff-86cb-c3735d00690f
filename: 20221107 Nat Chem s41557-022-01071-3.pdf