Highly Fluorinated Nanospace in Porous Organic Salts with High Water Stability/Capability and Proton Conductivity

Ami, Takahiro; Oka, Kouki; Kitajima, Showa et al.

Angewandte Chemie - International Edition, 2024, 63(37), e202407484

Number of Access:453（2025-07-31 17:05 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/98123

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Title
Highly Fluorinated Nanospace in Porous Organic Salts with High Water Stability/Capability and Proton Conductivity
Creator
CreatorName
Ami, Takahiro
NRID
1000050907376 1000050907376
researchmap permalink
k.oka k.oka
Scopus Author ID
57197754064 57197754064
CreatorName
Oka, Kouki
CreatorName
Kitajima, Showa
NRID
1000030346184 1000030346184
researchmap permalink
read0089607 read0089607
Scopus Author ID
6701482198 6701482198
ORCID
0000-0001-7051-7599 0000-0001-7051-7599
CreatorName
Tohnai, Norimitsu
Subject
highly fluorinated nanospace
hydrophobic nanospace
porous organic salts
proton conduction
water stability
Description
Ami T., Oka K., Kitajima S., et al. Highly Fluorinated Nanospace in Porous Organic Salts with High Water Stability/Capability and Proton Conductivity. Angewandte Chemie - International Edition 63, e202407484 (2024); https://doi.org/10.1002/anie.202407484.
Abstract
Water in hydrophobic nanospaces shows specific dynamic properties different from bulk water. The investigation of these properties is important in various research fields, including materials science, chemistry, and biology. The elucidation of the correlation between properties of water and hydrophobic nanospaces requires nanospaces covered only with simple hydrophobic group (e.g., fluorine) without impurities such as metals. This work successfully fabricated all-organic diamondoid porous organic salts (d-POSs) with highly fluorinated nanospaces, wherein hydrophobic fluorine atoms are densely exposed on the void surfaces, by combining fluorine substituted triphenylmethylamine (TPMA) derivatives with tetrahedral tetrasulfonic acid. This d-POSs with a highly fluorinated nanospace significantly improved their water stability, retaining their crystal structure even when immersed in water over one week. Moreover, this highly hydrophobic and fluorinated nanospace adsorbs 160 mL(STP)/g of water vapor at Pe/P0=0.90; this is the first hydrophobic nanospace, which water molecules can enter, in an all-organic porous material. Furthermore, this highly fluorinated nanospace exhibits very high proton conductivity (1.34×10−2 S/cm) at 90 °C and 95 % RH. POSs with tailorable nanospaces may significantly advance the elucidation of the properties of specific “water” in pure hydrophobic environments.
Publisher
John Wiley and Sons Inc
Source Title
Angewandte Chemie - International Edition
Volume (Issue)
63(37)
Page
e202407484
Date of Issued
2024-09-09
Language
English
Handle URL
https://hdl.handle.net/11094/98123
PISSN
14337851
eISSN
15213773
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1002/anie.202407484
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article