# Supramolecular Protection–Deprotection for Switching Pore‐Surface Functionality in a Crystalline Porous Organic Salt

https://mdr.nims.go.jp/datasets/7c31f02e-d8fe-4607-87a6-ac891bc812a2

## File

- [Angew Chem Int Ed - 2026 - Shiga - Supramolecular Protection Deprotection for Switching Pore‐Surface Functionality in a.pdf](https://mdr.nims.go.jp/filesets/f1acde7f-b66f-4340-a7cf-4d1274e998a4/download) ([Detail](https://mdr.nims.go.jp/filesets/f1acde7f-b66f-4340-a7cf-4d1274e998a4.md))

## Id

7c31f02e-d8fe-4607-87a6-ac891bc812a2

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-10-09T10:00:42.232844Z

## Updated at

2026-11-04T02:12:38.351551Z

## Published at

2026-11-04T03:32:00.713688Z

## Doi



## First published url

https://doi.org/10.1002/anie.1547062

## Date published

2026-09-28

## Recorded date published

2026-9-28

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Supramolecular Protection–Deprotection for Switching Pore‐Surface Functionality
    in a Crystalline Porous Organic Salt
  title_type: original
  lang: en

## Description

- description: The precise installation of highly interactive functional groups on
    pore surfaces remains a central challenge in crystalline porous materials since
    such groups often interfere with framework formation. In this study, supramolecular
    protection–deprotection was performed in a porous organic salt that temporally
    separated framework construction from the emergence of pore-surface functionality.
    During crystallization, the phenolic OH groups were protected by hydrogen bonding
    with dimethyl sulfoxide (DMSO), enabling the formation of a crystalline framework
    based on charge-assisted hydrogen bonds. Stepwise removal of DMSO induced a two-step
    single-crystal-to-single-crystal phase transition, affording first a dormant state
    (Form II), in which the OH groups remained protected, and subsequently an active
    state (Form III), in which the OH groups were exposed on the pore surface together
    with the emergence of porosity. The dormant state was re-formed by exposure to
    DMSO or N , N -dimethylacetamide vapor, whereas other solvents failed to induce
    the same structural response. In contrast, the active state showed markedly enhanced
    NH3 uptake relative to the dormant state and preferential adsorption of NH3 over
    CO2 , N2 , H2 , and O2 under the investigated conditions. These results demonstrate
    that supramolecular protection–deprotection provides a useful strategy for temporally
    controlling pore-surface functionality in dynamic crystalline porous materials.
  description_type: abstract
  lang: und

## Creator

- name: Kazuki Shiga
  role: author
  orcid: https://orcid.org/0009-0002-4889-7163
- name: Ryota Yamazaki
  role: author
- name: Hajime Shigemitsu
  role: author
  orcid: https://orcid.org/0000-0002-3104-049X
- name: Yuuya Nagata
  role: author
  orcid: https://orcid.org/0000-0001-5926-5845
- name: Norimitsu Tohnai
  role: author
  orcid: https://orcid.org/0000-0001-7051-7599

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: crystal engineering
  schema: not_defined
- subject: hydrogen bonds
  schema: not_defined
- subject: microporous materials
  schema: not_defined
- subject: phase transitions
  schema: not_defined
- subject: supramolecular chemistry
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Angewandte Chemie International Edition
  issn: '14337851'
  volume: '65'
  issue: '40'
  article_number: e1547062

## Conference



## Related item



## Funding

- identifier: 24H00405
  funder_name: Japan Society for the Promotion of Science
- identifier: 24K21717
  funder_name: Japan Society for the Promotion of Science

## Instrument



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



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## Fileset

- id: f1acde7f-b66f-4340-a7cf-4d1274e998a4
  filename: Angew Chem Int Ed - 2026 - Shiga - Supramolecular Protection Deprotection
    for Switching Pore‐Surface Functionality in a.pdf
  content_type: application/pdf
  size: 1762571
  md5: 9a2bf3ff00f74917bfdbcf08e4df6893

## Thumbnail

fileset_id: f1acde7f-b66f-4340-a7cf-4d1274e998a4
filename: Angew Chem Int Ed - 2026 - Shiga - Supramolecular Protection Deprotection
  for Switching Pore‐Surface Functionality in a.pdf