S. Harada, S. Dekura,* G. Saito, T. Sato, T. Akutagawa*, “Reversible hydration-induced ionic conductivity switching accompanied by large desorption enthalpy in sodium salts of 1,2,3-triazole-fused p-benzoquinone”, J. Mater. Chem. C in press (2026).

DOI: 10.1039/D5TC04307G

A. Kondo, H. Sato, A. Ito, Y. Kondo, S. Hadano, K. Takahashi, S. Dekura, J. Manabe, T. Sato, T. Akutagawa, T. Nakamura, S. Nishihara, M. Izumi, R. Ochi*, “Potassium-ion-responsive chiral supramolecular hydrogels exhibiting long-range chirality transfer from D- or L-alanine to achiral frameworks”, Chem. Commun. 62, 5734–5738 (2026).

K. Nishioka, S. Dekura,* T. Fujino, M. Mizuno, R. Kumai, B. Thomsen, M. Shiga, Y. Hori, Y. Shigeta, H. Mori*, “Proton Tautomerism for Anhydrous Superprotonic Conduction in 1,2,3-Triazolium Dihydrogen Phosphate Crystal”, Angew. Chem. Int. Ed. 65, e20785 (2026).

DOI: 10.1002/anie.202520785

東大物性研の紹介記事はこちら。

G. Saito, T. Takeda,* S. Dekura, J. Moriguchi, T. Sato, R. Tsunashima, T. Akutagawa*, “Porous Organic Frameworks Utilizing Halogen···Halogen Interactions of X4–tetra[2,3]Thienylene (X = Br, I): Guest Dynamics and Dielectric Response”, Chem. Eur. J. 31, e02872 (2025).

DOI: 10.1002/chem.202502872

M. Li, T. Takeda,* S. Dekura, T. Sato, T. Akutagawa*, “Proton Conductivities of Stepwise Protonated Imidazole-Fused Tetraphenylene Derivatives”, Chem. Eur. J. 31, e02622 (2025).

DOI: 10.1002/chem.202502622

Y. Kasahara, T. Takeda,* S. Dekura, H. Anetai, A. Takai, I. Hisaki, M. Takeuchi, T. Akutagawa*, “Ring-Size Effect on Molecular Assembly Structures and Optical Properties of C3-Symmetrical Dehydrobenzoannulene Derivatives”, J. Phys. Chem. B 129, 8603–8614 (2025).

M. Matsuzaka, R. Miyamoto, C. Hashimoto, M. Taniguchi, K. Kashima, S. Dekura, T. Ueda, Y. Nomura, T. Akutagawa, K. Ando, H. Kaiju*, “Observation of magnetoresistance effect in Ni78Fe22/tris-(8-hydroxyquinoline) erbium (Erq3)/FeCo organic spin valves”, J. Magn. Magn. Mater. 630, 173465 (2025).

S. Suzuki,* S. Uno, T. Murata, Y. Morita, S. Kato, S. Dekura, T. Akutagawa, S. Kawamorita, T. Naota, “Synthesis and Near-Infrared to Infrared Absorption Properties of a Hexabenzocoronene Radical Cation with a Double-Concave Structure”, ChemistryEurope 3, e202500089 (2025).

N. Onodera, S. Dekura,* T. Sato, M. Mashiko, T. Kurihara, M. Mizuno, T. Akutagawa*, “Ferroelectric-like Polarization Switching in Plastic Crystalline Succinonitrile”, J. Am. Chem. Soc. 147, 19200–19209 (2025).

DOI: 10.1021/jacs.5c04778

東北大学のプレスリリースはこちら。
（東北大多元研ウェブサイト・東北大工学研究科ウェブサイトにも掲載。）
金沢大学のプレスリリースはこちら（PDFリンク）。
JSTのプレスリリースはこちら。

Y. Kasahara, T. Takeda,* S. Dekura, Y. Ishii, H. Anetai, A. Takai, I. Hisaki, M. Takeuchi, T. Akutagawa*, “Supramolecular Polymorphism of the Hydrogen-Bonded C3-Symmetrical Hexadehydrotribenzo[12]annulene Derivative”, J. Am. Chem. Soc. 147, 18783–18795 (2025).

DOI: 10.1021/jacs.5c02529

東北大学のプレスリリースはこちら。

Y. Ohishi, J. Fujiwara, A. Masuya-Suzuki, Y. Tatewaki, S. Nishihara, S. Dekura, T. Akutagawa, R. Tsunashima*, “Ferroelectricity and phase transition of halide solid-solution dabcoH(BrxI1−x)”, Dalton Trans. 54, 9631–9636 (2025).

M. Gon, S. Dekura, T. Akutagawa, K. Tanaka*, “Geometry-Dependent Energy-Gap Modulation of π-Conjugated Systems Based on Hypervalent Silicon(IV)-Fused Azomethine Compounds”, Chem. Eur. J 31, e202500506 (2025).

H. Morishita, K. Sambe, S. Dekura, H. Sugishita, C. Kitamura, T. Matsumoto, T. Takeda, R. Uesugi, T. Ishida, T. Akutagawa,* S. Suzuki,* S. Kato*, “Spin and Structural Dynamics of Persistent π-Mer and π-Dimer of a Tethered S,C,C-Bridged Triphenylamine Dimer”, Chem. Eur. J 31, e202500576 (2025).

R. Mizoue, T. Takeda, S. Dekura, T. Akutagawa*, “Dynamic Polar Hydrogen Bonds and Photoconductivity of an Alkylamide-Substituted Carbazole Derivative”, J. Phys. Chem. C 128, 20649–20658 (2024).

M. Li, T. Takeda,* S. Dekura, T. Akutagawa*, “Proton Conductivity Switch for Hydrogen-Bonding Octaaminotetraphenylene Salts Through Crystal–Amorphous Transformation During H2O Sorption”, J. Phys. Chem. C 128, 14834–14841 (2024).

C. Sato, S. Dekura,* H. Sato, K. Sambe, T. Takeda, T. Kurihara, M. Mizuno, T. Taniguchi, J. Wu, T. Nakamura, T. Akutagawa*, “Proton Conduction in Chiral Molecular Assemblies of Azolium–Camphorsulfonate Salts”, J. Am. Chem. Soc. 146, 22699–22710 (2024).

DOI: 10.1021/jacs.4c07429

東北大学のプレスリリースはこちら。
（東北大多元研ウェブサイト・東北大工学研究科ウェブサイトにも掲載。）
金沢大学のプレスリリースはこちら（PDFリンク）。
早稲田大学のプレスリリースはこちら。

Y. Ohishi, K. Sambe, S. Dekura, T. Akutagawa, A. Masuya-Suzuki, R. Tsunashima, “Effect of halide solid solution on the structure, phase transition behaviour and dielectric properties of dabcoH+ chains”, CrystEngComm 26, 3468–3474 (2024).

T. Fujino,* R. Kameyama, K. Onozuka, K. Matsuo, S. Dekura, T. Miyamoto, Z. Guo, H. Okamoto, T. Nakamura, K. Yoshimi, S. Kitou, T. Arima, H. Sato, K. Yamamoto, A. Takahashi, H. Sawa, Y. Nakamura, H. Mori*, “Orbital hybridization of donor and acceptor to enhance the conductivity of mixed-stack complexes”, Nature Commun. 15, 3028 (2024).

DOI: 10.1038/s41467-024-47298-1

東大物性研のプレスリリースはこちら。

K. Kikuchi, H. Sei, K. Okubo, N. Tohnai, K. Oka, S. Dekura, T. Kikuchi, H. Imoto,* K. Naka*, “Breathing Metal–Organic Frameworks Supported by an Arsenic-Bridged 4,4′-Bipyridine Ligand”, Inorg. Chem 63, 4337–4343 (2024).

R. Mizoue, T. Takeda, S. Dekura, M, Kato, T. Fukui, Y. Shoji, T. Fukushima, S. Yamane, Y. Suzuki, J. Kawamata, T. Akutagawa*, “Ferroelectricity of Alkylamide-substituted Triptycene Derivatives”, J. Mater. Chem. C 12, 5578–5586 (2024).

DOI: 10.1039/D3TC04752K

R. Ide, A. Kawasaki, T. Takeda, S. Dekura, N. Hoshino, W. Matsuda, S. Seki, T. Akutagawa*, “Condensed π-Molecular Arrangement for −C2H4SO3− Armed Naphtalenediimide”, J. Mater. Chem. C 12, 3185–3195 (2024).

DOI: 10.1039/D3TC04231F

T. Fujino,* R. Kameyama, K. Onozuka, K. Matsuo, S. Dekura,, K. Yoshimi, H. Mori*, “Single-crystalline oligomer-based conductors modeling the doped poly(3,4-ethylenedioxythiophene) family”, Faraday Discussions 250, 348–360 (2024).

R. Ide, A. Kawasaki, T. Takeda, S. Dekura, N. Hoshino, W. Matsuda, S. Seki, T. Akutagawa*, “Proton Conduction Crossover and Pyrophosphate Bond Formation of −PO3H– Substituted Naphtalenediimide Salts”, J. Phys. Chem. C 127, 16709–16720 (2023).

C. Sato, T. Takeda, S. Dekura, Y. Suzuki, J. Kawamata, T. Akutagawa*, “Chiral Plastic Crystal of Solid-State Dual Rotators”, Cryst. Growth. Des. 23, 5889–5898 (2023).

K. Onozuka, T. Fujino,* R. Kameyama, S. Dekura, K. Yoshimi, T. Nakamura, T. Miyamoto, T. Yamakawa, H. Okamoto, H. Sato, T. Ozaki, H. Mori*, “Metallic State of a Mixed-Sequence Oligomer Salt That Models Doped PEDOT Family”, J. Am. Chem. Soc. 145, 15152–15161 (2023).

S. Yokomori,* S. Dekura,* A. Ueda, T. Higashino, H. Mori*, “Neutral Radical Molecular Conductors Based on a Gold Dimethoxybenzenedithiolene Complex with and without Crystal Solvent”, Chem. Lett. 52, 25–28 (2023).

DOI: 10.1246/cl.220446

S. Dekura,* M. Mizuno, H. Mori*, “Isotropic Anhydrous Superprotonic Conductivity Cooperated with Installed Imidazolium Molecular Motions in a 3D Hydrogen-Bonded Phosphate Network”, Angew. Chem. Int. Ed. 61, e202212872 (2022).

R. Akai, K. Oka, S. Dekura,* H. Mori, N. Tohnai*, “Molecular Arrangement Control of [1]Benzothieno[3,2-b][1]benzothiophene (BTBT) via Charge-Assisted Hydrogen Bond”, Bull. Chem. Soc. Jpn. 95, 1178–1182 (2022).

DOI: 10.1246/bcsj.20220134

R. Kameyama, T. Fujino,* S. Dekura, S. Imajo, T. Miyamoto, H. Okamoto, H. Mori*, “Band-filling effects in single-crystalline oligomer models for doped PEDOT: 3,4-ethylenedioxythiophene (EDOT) dimer salt with hydrogen-bonded infinite sulfate anion chains”, J. Mater. Chem. C 10, 7543–7551 (2022).

J. Tang,* O. Seo,* D. S. R. Rocabado, T. Koitaya, S. Yamamoto, Y. Nanba, C. Song, J. Kim, A. Yoshigoe, M. Koyama, S. Dekura, H. Kobayashi, H. Kitagawa, O. Sakata,* I. Matsuda, J. Yoshinobu, “Hydrogen absorption and diffusion behaviors in cube-shaped palladium nanoparticles revealed by ambient-pressure X-ray photoelectron spectroscopy”, Appl. Surf. Sci. 587, 152797 (2022).

DOI: 10.1016/j.apsusc.2022.152797

R. Kameyama, T. Fujino,* S. Dekura, H. Mori*, “Conjugation Length Effect on the Conducting Behavior of Single-crystalline Oligo(3,4-ethylenedioxythiophene) (nEDOT) Radical Cation Salts”, Phys. Chem. Chem. Phys. 24, 9130–9134 (2022).

S. Dekura,* Y. Sunairi, K. Okamoto, F. Takeiri, G. Kobayashi, Y. Hori,* Y. Shigeta, H. Mori*, “Effects of mechanical grinding on the phase behavior and anhydrous proton conductivity of imidazolium hydrogen succinate”, Solid State Ionics 372, 115775 (2021).

M. Yamashita,* S. Sugiura, A. Ueda, S. Dekura, T. Terashima, S. Uji, Y. Sunairi, H. Mori, E. I. Zhilyaeva, S. A. Torunova, R. N. Lyubovskaya, N. Drichko,* C. Hotta*, “Ferromagnetism out of charge fluctuation of strongly correlated electrons in κ-(BEDT-TTF)2Hg(SCN)2Br”, npj Quantum Materials 6, 87 (2021).

DOI: 10.1038/s41535-021-00387-6

arXiv:2006.05221

R. Akiyoshi, Y. Komatsumaru, M. Donoshita, S. Dekura, Y. Yoshida, H. Kitagawa, Y. Kitagawa, L. F. Lindoy, S. Hayami*, “Ferroelectric Spin Crossover Cobalt(II) Compound Induced by Polar Ligand Substituent Motion”, Angew. Chem. Int. Ed. 60, 12717–12722 (2021).

S. Yokomori, S. Dekura,* T. Fujino, M. Kawamura, T. Ozaki, H. Mori*, “Vapochromism induced by intermolecular electron transfer coupled with hydrogen-bond formation in zinc dithiolene complex”, J. Mater. Chem. C 8, 14939–14947 (2020).

Y. Sunairi, S. Dekura, A. Ueda, T. Ida, M. Mizuno, H. Mori*, “Anhydrous Purely Organic Solid-State Proton Conductors: Effects of Molecular Dynamics on the Proton Conductivity of Imidazolium Hydrogen Dicarboxylates”, J. Phys. Soc. Jpn. 89, 051008 (2020).

SPECIAL TOPICS: Frontier of Hydrogen Science (invited)

S. Dekura, H. Akiba, O. Yamamuro,* H. Kobayashi, M. Maesato, H. Kitagawa*, “New Insights on the Formation Process and Thermodynamics of the α-Phase PdH(D)x through Direct Enthalpy Measurement of H(D) Dissolution”, J. Phys. Chem. C 124, 8663–8668 (2020).

K. Otake, K. Otsubo,* T. Komatsu, S. Dekura, J. M. Taylor,* R. Ikeda, K. Sugimoto, A. Fujiwara, C. Chou, A. W. Sakti, Y. Nishimura, H. Nakai,* H. Kitagawa*, “Confined water-mediated high proton conduction in hydrophobic channel of a synthetic nanotube”, Nature Commun. 11, 843 (2020).

DOI: 10.1038/s41467-020-14627-z

O. Seo, J. Kim, A. Tayal, C. Song, L. S. R. Kumara, S. Dekura, H. Kobayashi, H. Kitagawa, O. Sakata*, “The relationship between crystalline disorder and electronic structure of Pd nanoparticles and their hydrogen storage properties”, RSC Adv. 9, 21311–21317 (2019).

DOI: 10.1039/C9RA02942G

J. Lee, D.-W. Lim, S. Dekura, H. Kitagawa,* W. Choe*, “MOP X MOF: Collaborative Combination of Metal-Organic Polyhedra and Metal–Organic Framework for Proton Conductivity”, ACS Appl. Mater. Interfaces 11, 12639–12646 (2019).

S. Dekura, H. Kobayashi, R. Ikeda, M. Maesato, H. Yoshino, M. Ohba, T. Ishimoto, S. Kawaguchi, Y. Kubota, S. Yoshioka, S. Matsumura, T. Sugiyama, H. Kitagawa*, “The Electronic State of Hydrogen in the α Phase of the Hydrogen‐Storage Material PdH(D)x: Does a Chemical Bond Between Palladium and Hydrogen Exist?”, Angew. Chem. Int. Ed. 57, 9823–9827 (2018).

M. Matsuki, T. Yamada,* S. Dekura, H. Kitagawa, N. Kimizuka, “Enhancement of Ionic Conductivity in Organic Ionic Plastic Crystals by Introducing Racemic Ammonium Ions”, Chem. Lett. 47, 497–499 (2018).

M. Matsuki, T. Yamada,* N. Yasuda, S. Dekura, H. Kitagawa, N. Kimizuka, “Nonpolar-to-Polar Phase Transition of a Chiral Ionic Plastic Crystal and Switch of the Rotation Symmetry”, J. Am. Chem. Soc. 140, 291–297 (2018).

O. Seo, O. Sakata,* J. M. Kim, S. Hiroi, C. Song, L. S. R. Kumara, K. Ohara, S. Dekura, K. Kusada, H. Kobayashi, H. Kitagawa, “Stacking fault density and bond orientational order of fcc ruthenium nanoparticles”, Appl. Phys. Lett. 111, 253101 (2017).

DOI: 10.1063/1.5006830

J. M. Taylor,* T. Komatsu, S. Dekura, K. Otsubo, M. Takata, H. Kitagawa*, “The Role of a Three Dimensionally Ordered Defect Sublattice on the Acidity of a Sulfonated Metal–Organic Framework”, J. Am. Chem. Soc. 137, 11498–11506 (2015).

J. M. Taylor,* S. Dekura, R. Ikeda, H. Kitagawa*, “Defect Control To Enhance Proton Conductivity in a Metal–Organic Framework”, Chem. Mater. 27, 2286–2289 (2015).

G. Li, H. Kobayashi,* S. Dekura, R. Ikeda, Y. Kubota, K. Kato, M. Takata, T. Yamamoto, S. Matsumura, H. Kitagawa*, “Shape-Dependent Hydrogen-Storage Properties in Pd Nanocrystals: Which Does Hydrogen Prefer, Octahedron (111) or Cube (100)?”, J. Am. Chem. Soc. 136, 10222–10225 (2014).

S. Dekura, H. Kobayashi, G. Li, R. Ikeda, Y. Kubota, M. Takata, H. Kitagawa*, “First in situ NMR observation of hydrogen adsorbed inside [Cu3(btc)2] at ambient temperature and pressure”, Chem. Lett. 43, 1363–1364 (2014).

S. Dekura, H. Kobayashi, K. Kusada, and H. Kitagawa*, “Hydrogen in Palladium and Storage Properties of Related Nanomaterials: Size, Shape, Alloying, and Metal–Organic Framework Coating Effects”, ChemPhysChem 20, 1158–1176 (2019).

(invited review)

芥川 智行・出倉 駿, “分子の世界の二段階スイッチ：電気で”向き”と”形”を制御する新発見”, 自動車技術 80, 128–129 (2026).

出倉 駿, “分子の内部自由度に立脚した無水超プロトン伝導体の開発”, Molecular Science 19, A0140 (2025).

DOI: 10.3175/molsci.19.A0140

出倉 駿, “アゾリウム分子の結晶中分子回転運動に着目した無水プロトン伝導性有機結晶の開拓”, 日本結晶学会誌 66, 185–188 (2024).

DOI: 10.5940/jcrsj.66.185

出倉 駿・小林 浩和・北川 宏, “Pd ナノ結晶中の固溶水素の電子状態”, Colloid & Interface Communication 43, 45–48 (2018).