Evidence map›Paper›PMID 42340135›Full record

ArticleSmall (Weinheim an der Bergstrasse, Germany)2026

Anisotropic Swelling of a Single-Crystalline Hydrogen-Bonded Organic Framework Induced by Iodine Vapor Uptake.

Moka Tabata, Ryusei Oketani, Takuma Matsuda, Kodai Shimizu, Toshiki Watanabe, Kotaro Kawasaki, Kento Kasahara, Yoshiharu Uchimoto, Nobuyuki Matubayasi, Ichiro Hisaki

Abstract read
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In one paragraph

Article in Small (Weinheim an der Bergstrasse, Germany), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Moka TabataDivision of Chemistry, Graduate School of Engineering Science, The University of Osaka, Toyonaka, Osaka, Japan.
Ryusei OketaniDivision of Chemistry, Graduate School of Engineering Science, The University of Osaka, Toyonaka, Osaka, Japan.
Takuma MatsudaDivision of Chemical Engineering, Graduate School of Engineering Science, The University of Osaka, Toyonaka, Osaka, Japan.
Kodai ShimizuDivision of Chemistry, Graduate School of Engineering Science, The University of Osaka, Toyonaka, Osaka, Japan.
Toshiki WatanabeGraduate School of Human and Environmental Studies, Kyoto University, Kyoto, Japan.
Kotaro KawasakiDivision of Chemical Engineering, Graduate School of Engineering Science, The University of Osaka, Toyonaka, Osaka, Japan.
Kento KasaharaDivision of Chemical Engineering, Graduate School of Engineering Science, The University of Osaka, Toyonaka, Osaka, Japan.
Yoshiharu UchimotoGraduate School of Human and Environmental Studies, Kyoto University, Kyoto, Japan.
Nobuyuki MatubayasiDivision of Chemical Engineering, Graduate School of Engineering Science, The University of Osaka, Toyonaka, Osaka, Japan.
Ichiro HisakiDivision of Chemistry, Graduate School of Engineering Science, The University of Osaka, Toyonaka, Osaka, Japan.

Funding

Data-Driven Material Research Project from MEXT, Japan JPMXP1122714694Fugaku Supercomputer Project from MEXT, Japan JPMXP1020230325Fugaku Supercomputer Project from MEXT, Japan JPMXP1020230327KAKENHI from JSPS, Japan JP22H05148KAKENHI from JSPS, Japan JP23H04029KAKENHI from JSPS, Japan JP23K27313KAKENHI from JSPS, Japan JP24K01468KAKENHI from JSPS, Japan JP25H01672KAKENHI from JSPS, Japan JP25H02042
6 · The paper itself

Abstract

In this paper, we report that iodine vapor adsorption induces anisotropic swelling of a porous hydrogen-bonded framework (HOF) composed of hexacarboxylic acid with hexaazatrinaphthylene (CPHATN). Single crystals of HOF CPHATN-1a exhibited swelling along the stacking direction upon exposure to iodine after an induction period, achieving a maximum elongation ratio of 60% and iodine uptake up to 30% at 22°C by weight. Single-crystal X-ray diffraction analysis, microscopic observation, micro-CT, Raman spectroscopy, as well as molecular dynamics calculations, revealed that iodine adsorption onto the HOF proceeds in the following two steps: (1) adsorption into void channels and (2) intercalation into the layers. The latter process causes anisotropic elongation of the crystals and perturbs crystalline periodicity. Intercalation of iodine into the interlayer was facilitated by attractive halogen bonds between the σ-holes of iodine and the pyrazine nitrogen atoms of CPHATN. This is the first proposal of the swelling mechanism of organic porous crystals by iodine based on single-crystal structures, and the results provide new insights into the effects of inclusion of heavy-element molecules on porous frameworks, contributing the development of porous materials.

Indexed as

anisotropic swellinghalogen bondhydrogen‐bonded organic frameworkiodine absorptionsingle crystal

Identifiers

PMID42340135
PMCPMC13450049

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.