# Triptycene‐Based Organic Nanosheet Assemblies via Reversible Boronic Ester Formation: Alkyl Chain Length‐Dependent Formation and Aggregation

https://mdr.nims.go.jp/datasets/5e00a87c-1872-470f-a2ec-6ddf30e4ff90

## File

- [ChemPlusChem - 2026 - Hayashi - Triptycene‐Based Organic Nanosheet Assemblies via Reversible Boronic Ester Formation  Alkyl.pdf](https://mdr.nims.go.jp/filesets/44b4933c-7659-4b14-893f-6b06bcd2dc0f/download) ([Detail](https://mdr.nims.go.jp/filesets/44b4933c-7659-4b14-893f-6b06bcd2dc0f.md))

## Id

5e00a87c-1872-470f-a2ec-6ddf30e4ff90

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-11-02T08:58:06.734263Z

## Updated at

2026-11-03T23:56:57.861015Z

## Published at

2026-11-04T01:30:03.118181Z

## Doi



## First published url

https://doi.org/10.1002/cplu.70276

## Date published

2026-10-27

## Recorded date published

2026-11

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: 'Triptycene‐Based Organic Nanosheet Assemblies via Reversible Boronic Ester
    Formation: Alkyl Chain Length‐Dependent Formation and Aggregation'
  title_type: original
  lang: en

## Description

- description: "A bottom‐up strategy for the preparation of triptycene‐based organic
    nanosheet assemblies through reversible boronic ester formation is presented.
    The triptycene scaffold enables the orthogonal placement of alkyl substituents
    and boronic ester‐forming sites, providing a molecular platform to examine how
    peripheral alkyl chains influence nanosheet formation and aggregation. Time‐dependent
    microscopy observations revealed alkyl‐chain‐length‐dependent assembly behavior.
    Hexyl‐substituted precursors afforded sheet‐like domains at an earlier stage,
    whereas methyl‐ and ethyl‐substituted analogs showed slower formation of\r\nless‐defined
    nanosheet‐like morphologies. These results indicate that longer alkyl chains are
    associated with earlier formation of sheet‐like domains and stronger aggregation;
    however, this alkyl‐chain effect is described as an empirical trend rather than
    a definitively established mechanism. Infrared spectroscopy supported boronic
    ester formation, and single‐crystal structures of partial molecular analogs confirmed
    the orthogonal arrangement of the alkyl substituents relative to the framework‐forming
    units. Absorption measurements showed a slight red‐shift for the nanosheet assemblies
    relative to the corresponding reference compounds, consistent with modest extension
    of electronic communication within the boronic ester‐linked framework. This study
    provides a case study showing that peripheral alkyl substituents can influence
    the formation and aggregation behavior of triptycene‐based organic nanosheet assemblies,
    offering useful insight into the development of dispersible 2D organic materials."
  description_type: abstract
  lang: und

## Creator

- name: Hironobu Hayashi
  role: author
  orcid: https://orcid.org/0000-0002-7872-3052
- name: Kizuku Yamamoto
  role: author
- name: Madhuparna Chakraborty
  role: author
  orcid: https://orcid.org/0000-0002-5058-6973
- name: Junko Aimi
  role: author
  orcid: https://orcid.org/0000-0003-1339-0581
- name: Nobuyuki Ishida
  role: author
  orcid: https://orcid.org/0000-0003-0161-0583
- name: Naoki Aratani
  role: author
  orcid: https://orcid.org/0000-0002-3181-6526
- name: Hiroko Yamada
  role: author
  orcid: https://orcid.org/0000-0002-2138-5902

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: organic nanosheet
  schema: not_defined
- subject: triptycene
  schema: not_defined
- subject: AFM
  schema: not_defined
- subject: dynamic covalent bond
  schema: not_defined
- subject: alkyl chain effect
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: ChemPlusChem
  issn: '21926506'
  volume: '91'
  issue: '11'
  article_number: e70276

## Conference



## Related item



## Funding

- identifier: JP24K01576, JP26K22862, JP26K01575, JP26H00381, JP25K01751
  funder_name: Japan Society for the Promotion of Science

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 44b4933c-7659-4b14-893f-6b06bcd2dc0f
  filename: ChemPlusChem - 2026 - Hayashi - Triptycene‐Based Organic Nanosheet Assemblies
    via Reversible Boronic Ester Formation  Alkyl.pdf
  content_type: application/pdf
  size: 2298270
  md5: 94f2d3d34cbe42a97705b6bb74d51b87

## Thumbnail

fileset_id: 44b4933c-7659-4b14-893f-6b06bcd2dc0f
filename: ChemPlusChem - 2026 - Hayashi - Triptycene‐Based Organic Nanosheet Assemblies
  via Reversible Boronic Ester Formation  Alkyl.pdf