Supramolecular colorimetric pressure sensing: ratiometric quantification based on pressure-modulated association

Tomoyuki Hamachi; Iori Okamura; Shigehiro S. Y. Yamaguchi; Masahito Murai; Gaku Fukuhara

doi:10.1039/d6cc00561f

January 1, 2026Chemical Communications

Supramolecular colorimetric pressure sensing: ratiometric quantification based on pressure-modulated association

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Key Points

This research focuses on utilizing supramolecular systems for pressure sensing.
Developed a pressure-sensing method based on colorimetric responses.
Utilized silicon-bridged diazulenylmethyl cation 1PF₆.
Investigated the monomer-dimer equilibrium under hydrostatic pressure.
Hydrostatic pressure shifts the monomer-dimer equilibrium.
Pressure results in desolvation of the dimer, enhancing sensing capabilities.

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Implication

Ratiometric quantification reveals hydrostatic pressure effects on supramolecular colorimetric sensing.

Abstract

Supramolecular colorimetric pressure sensing in solution was achieved using silicon-bridged diazulenylmethyl cation 1PF₆, whose monomer-dimer equilibrium shifts under hydrostatic pressure. Pressurization promotes desolvation of the strongly solvated dimer to produce...

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Hamachi et al. (2026) studied this question.

synapsesocial.com/papers/69fa97ce04f884e66b531a04 https://doi.org/10.1039/d6cc00561f

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Supramolecular colorimetric pressure sensing: ratiometric quantification based on pressure-modulated association

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Supramolecular colorimetric pressure sensing: ratiometric quantification based on pressure-modulated association

Key Points

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Abstract

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