Publications

Original Papers

1. “Ferroelectric-like Polarization Switching in Plastic Crystalline Succinonitrile”
   N. Onodera, S. Dekura,* T. Sato, M. Mashiko, T. Kurihara, M. Mizuno, T. Akutagawa*
   J. Am. Chem. Soc. 147(22), 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。
2. “Supramolecular Polymorphism of the Hydrogen-Bonded C3-Symmetrical Hexadehydrotribenzo[12]annulene Derivative”
   Y. Kasahara, T. Takeda,* S. Dekura, Y. Ishii, H. Anetai, A. Takai, I. Hisaki, M. Takeuchi, T. Akutagawa*
   J. Am. Chem. Soc. 147(22), 18783–18795 (2025). doi: 10.1021/jacs.5c02529
   東北大学のプレスリリースはこちら。
3. “Ferroelectricity and phase transition of halide solid-solution dabcoH(BrxI1−x)”
   Y. Ohishi, J. Fujiwara, A. Masuya-Suzuki, Y. Tatewaki, S. Nishihara, S. Dekura, T. Akutagawa, R. Tsunashima*
   Dalton Trans. in press, (2025). doi: 10.1039/D5DT00583C
4. “Geometry-Dependent Energy-Gap Modulation of π-Conjugated Systems Based on Hypervalent Silicon(IV)-Fused Azomethine Compounds”
   M. Gon, S. Dekura, T. Akutagawa, K. Tanaka*
   Chem. Eur. J 31(29), e202500506 (2025). doi: 10.1002/chem.202500506
5. “Spin and Structural Dynamics of Persistent π-Mer and π-Dimer of a Tethered S,C,C-Bridged Triphenylamine Dimer”
   H. Morishita, K. Sambe, S. Dekura, H. Sugishita, C. Kitamura, T. Matsumoto, T. Takeda, R. Uesugi, T. Ishida, T. Akutagawa,* S. Suzuki,* S. Kato*
   Chem. Eur. J 31(30), e202500576 (2025). doi: 10.1002/chem.202500576
6. “Dynamic Polar Hydrogen Bonds and Photoconductivity of an Alkylamide-Substituted Carbazole Derivative”
   R. Mizoue, T. Takeda, S. Dekura, T. Akutagawa*
   J. Phys. Chem. C 128(48), 20649–20658 (2024). doi: 10.1021/acs.jpcc.4c06143
7. “Proton Conductivity Switch for Hydrogen-Bonding Octaaminotetraphenylene Salts Through Crystal–Amorphous Transformation During H2O Sorption”
   M. Li, T. Takeda,* S. Dekura, T. Akutagawa*
   J. Phys. Chem. C 128(35), 14834–14841 (2024). doi: 10.1021/acs.jpcc.4c03866
8. “Proton Conduction in Chiral Molecular Assemblies of Azolium–Camphorsulfonate Salts”
   C. Sato, S. Dekura,* H. Sato, K. Sambe, T. Takeda, T. Kurihara, M. Mizuno, T. Taniguchi, J. Wu, T. Nakamura, T. Akutagawa*
   J. Am. Chem. Soc. 146(32), 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。
9. “Effect of halide solid solution on the structure, phase transition behaviour and dielectric properties of dabcoH+ chains”
   Y. Ohishi, K. Sambe, S. Dekura, T. Akutagawa, A. Masuya-Suzuki, R. Tsunashima
   CrystEngComm 26, 3468–3474 (2024). doi: 10.1039/D4CE00310A
10. “Orbital hybridization of donor and acceptor to enhance the conductivity of mixed-stack complexes”
    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*
    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。
11. “Breathing Metal–Organic Frameworks Supported by an Arsenic-Bridged 4,4′-Bipyridine Ligand”
    K. Kikuchi, H. Sei, K. Okubo, N. Tohnai, K. Oka, S. Dekura, T. Kikuchi, H. Imoto,* K. Naka*
    Inorg. Chem 63(9), 4337–4343 (2024). doi: 10.1021/acs.inorgchem.3c04570
12. “Ferroelectricity of Alkylamide-substituted Triptycene Derivatives”
    R. Mizoue, T. Takeda, S. Dekura, M, Kato, T. Fukui, Y. Shoji, T. Fukushima, S. Yamane, Y. Suzuki, J. Kawamata, T. Akutagawa*
    J. Mater. Chem. C 12(15), 5578–5586 (2024). doi: 10.1039/D3TC04752K
13. “Condensed π-Molecular Arrangement for −C2H4SO3− Armed Naphtalenediimide”
    R. Ide, A. Kawasaki, T. Takeda, S. Dekura, N. Hoshino, W. Matsuda, S. Seki, T. Akutagawa*
    J. Mater. Chem. C 12(9), 3185–3195 (2024). doi: 10.1039/D3TC04231F
14. “Single-crystalline oligomer-based conductors modeling the doped poly(3,4-ethylenedioxythiophene) family”
    T. Fujino,* R. Kameyama, K. Onozuka, K. Matsuo, S. Dekura,, K. Yoshimi, H. Mori*
    Faraday Discussions 250, 348–360 (2024). doi: 10.1039/D3FD00134B
15. “Proton Conduction Crossover and Pyrophosphate Bond Formation of −PO3H– Substituted Naphtalenediimide Salts”
    R. Ide, A. Kawasaki, T. Takeda, S. Dekura, N. Hoshino, W. Matsuda, S. Seki, T. Akutagawa*
    J. Phys. Chem. C 127(33), 16709–16720 (2023). doi: 10.1021/acs.jpcc.3c03931
16. “Chiral Plastic Crystal of Solid-State Dual Rotators”
    C. Sato, T. Takeda, S. Dekura, Y. Suzuki, J. Kawamata, T. Akutagawa*
    Cryst. Growth. Des. 23(8), 5889–5898 (2023). doi: 10.1021/acs.cgd.3c00495
17. “Metallic State of a Mixed-Sequence Oligomer Salt That Models Doped PEDOT Family”
    K. Onozuka, T. Fujino,* R. Kameyama, S. Dekura, K. Yoshimi, T. Nakamura, T. Miyamoto, T. Yamakawa, H. Okamoto, H. Sato, T. Ozaki, H. Mori*
    J. Am. Chem. Soc. 145(28), 15152–15161 (2023). doi: 10.1021/jacs.3c01522
18. “Precise Control of the Molecular Arrangement of Organic Semiconductors for High Charge Carrier Mobility”
    R. Akai, K. Oka,* S. Dekura,* K. Yoshimi, H. Mori, R. Nishikubo, A. Saeki, N. Tohnai*
    J. Phys. Chem. Lett. 14(14), 3461–3467 (2023). doi: 10.1021/acs.jpclett.3c00334
    Highlighted in Journal Cover!
    
    
19. “Neutral Radical Molecular Conductors Based on a Gold Dimethoxybenzenedithiolene Complex with and without Crystal Solvent”
    S. Yokomori,* S. Dekura,* A. Ueda, T. Higashino, H. Mori*
    Chem. Lett. 52(1), 25–28 (2023). doi: 10.1246/cl.220446
20. “Isotropic Anhydrous Superprotonic Conductivity Cooperated with Installed Imidazolium Molecular Motions in a 3D Hydrogen-Bonded Phosphate Network”
    S. Dekura,* M. Mizuno, H. Mori*
    Angew. Chem. Int. Ed. 61(49), e202212872 (2022). doi: 10.1002/anie.202212872
21. “Molecular Arrangement Control of [1]Benzothieno[3,2-b][1]benzothiophene (BTBT) via Charge-Assisted Hydrogen Bond”
    R. Akai, K. Oka, S. Dekura,* H. Mori, N. Tohnai*
    Bull. Chem. Soc. Jpn. 95(8), 1178–1182 (2022). doi: 10.1246/bcsj.20220134
22. “Band-filling effects in single-crystalline oligomer models for doped PEDOT: 3,4-ethylenedioxythiophene (EDOT) dimer salt with hydrogen-bonded infinite sulfate anion chains”
    R. Kameyama, T. Fujino,* S. Dekura, S. Imajo, T. Miyamoto, H. Okamoto, H. Mori*
    J. Mater. Chem. C 10(19), 7543–7551 (2022). doi: 10.1039/D2TC01216B
23. “Hydrogen absorption and diffusion behaviors in cube-shaped palladium nanoparticles revealed by ambient-pressure X-ray photoelectron spectroscopy”
    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
    Appl. Surf. Sci. 587, 152797 (2022). doi: 10.1016/j.apsusc.2022.152797
24. “Conjugation Length Effect on the Conducting Behavior of Single-crystalline Oligo(3,4-ethylenedioxythiophene) (nEDOT) Radical Cation Salts”
    R. Kameyama, T. Fujino,* S. Dekura, H. Mori*
    Phys. Chem. Chem. Phys. 24(16), 9130–9134 (2022). doi: 10.1039/D2CP00250G
25. “Effects of mechanical grinding on the phase behavior and anhydrous proton conductivity of imidazolium hydrogen succinate”
    S. Dekura,* Y. Sunairi, K. Okamoto, F. Takeiri, G. Kobayashi, Y. Hori,* Y. Shigeta, H. Mori*
    Solid State Ionics 372, 115775 (2021). doi: 10.1016/j.ssi.2021.115775
26. “Proton Conduction Mechanism for Anhydrous Imidazolium Hydrogen Succinate Based on Local Structures and Molecular Dynamics”
    Y. Hori,* S. Dekura,* Y. Sunairi, T. Ida, M. Mizuno, H. Mori, Y. Shigeta
    J. Phys. Chem. Lett. 12(22), 5390–5394 (2021). doi: 10.1021/acs.jpclett.1c01280
    Highlighted in Journal Cover!
    東大物性研の紹介記事はこちら。
    筑波大学プレスリリースはこちら。
    
    
27. “Ferromagnetism out of charge fluctuation of strongly correlated electrons in κ-(BEDT-TTF)2Hg(SCN)2Br”
    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*
    npj Quantum Materials 6, 87 (2021). doi: 10.1038/s41535-021-00387-6
    arXiv:2006.05221
28. “Modulation of the electronic states and magnetic properties of nickel catecholdithiolene complex by oxidation-coupled deprotonation”
    S. Yokomori, S. Dekura,* A. Ueda, R. Kumai, Y. Murakami, H. Mori*
    J. Mater. Chem. C 9(33), 10718–10726 (2021). doi: 10.1039/D1TC01111A
    Themed collection: Materials for molecular electronics and magnetism (invited) Highlighted in back cover!
    
    
29. “Ferroelectric Spin Crossover Cobalt(II) Compound Induced by Polar Ligand Substituent Motion”
    R. Akiyoshi, Y. Komatsumaru, M. Donoshita, S. Dekura, Y. Yoshida, H. Kitagawa, Y. Kitagawa, L. F. Lindoy, S. Hayami*
    Angew. Chem. Int. Ed. 60(23), 12717–12722 (2021). doi: 10.1002/anie.202015322
30. “The Simplest Model for Doped PEDOT (Poly(3,4‐ethylenedioxythiophene)): Single‐crystalline EDOT Dimer Radical Cation Salts”
    R. Kameyama, T. Fujino,* S. Dekura, M. Kawamura, T. Ozaki, H. Mori*
    Chem. Eur. J 27(22), 6696–6700 (2021). doi: 10.1002/chem.202005333
    Highlighted in front cover! Selected as a Hot Paper!
    
    
31. “Vapochromism induced by intermolecular electron transfer coupled with hydrogen-bond formation in zinc dithiolene complex”
    S. Yokomori, S. Dekura,* T. Fujino, M. Kawamura, T. Ozaki, H. Mori*
    J. Mater. Chem. C 8(42), 14939–14947 (2020). doi: 10.1039/D0TC04280C
32. “Anhydrous Purely Organic Solid-State Proton Conductors: Effects of Molecular Dynamics on the Proton Conductivity of Imidazolium Hydrogen Dicarboxylates”
    Y. Sunairi, S. Dekura, A. Ueda, T. Ida, M. Mizuno, H. Mori*
    J. Phys. Soc. Jpn. 89, 051008 (2020). doi: 10.7566/JPSJ.89.051008
    SPECIAL TOPICS: Frontier of Hydrogen Science (invited)
33. “New Insights on the Formation Process and Thermodynamics of the α-Phase PdH(D)x through Direct Enthalpy Measurement of H(D) Dissolution”
    S. Dekura, H. Akiba, O. Yamamuro,* H. Kobayashi, M. Maesato, H. Kitagawa*
    J. Phys. Chem. C 124(16), 8663–8668 (2020). doi: 10.1021/acs.jpcc.0c01817
34. “Confined water-mediated high proton conduction in hydrophobic channel of a synthetic nanotube”
    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*
    Nature Commun. 11, 843 (2020). doi: 10.1038/s41467-020-14627-z
35. “The relationship between crystalline disorder and electronic structure of Pd nanoparticles and their hydrogen storage properties”
    O. Seo, J. Kim, A. Tayal, C. Song, L. S. R. Kumara, S. Dekura, H. Kobayashi, H. Kitagawa, O. Sakata*
    RSC Adv. 9(37), 21311–21317 (2019). doi: 10.1039/C9RA02942G
36. “MOP X MOF: Collaborative Combination of Metal-Organic Polyhedra and Metal–Organic Framework for Proton Conductivity”
    J. Lee, D.-W. Lim, S. Dekura, H. Kitagawa,* W. Choe*
    ACS Appl. Mater. Interfaces 11(13), 12639–12646 (2019). doi: 10.1021/acsami.9b01026
37. “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?”
    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*
    Angew. Chem. Int. Ed. 57(31), 9823–9827 (2018). doi: 10.1002/anie.201805753
38. “Enhancement of Ionic Conductivity in Organic Ionic Plastic Crystals by Introducing Racemic Ammonium Ions”
    M. Matsuki, T. Yamada,* S. Dekura, H. Kitagawa, N. Kimizuka
    Chem. Lett. 47(4), 497–499 (2018). doi: 10.1246/cl.171181
39. “Nonpolar-to-Polar Phase Transition of a Chiral Ionic Plastic Crystal and Switch of the Rotation Symmetry”
    M. Matsuki, T. Yamada,* N. Yasuda, S. Dekura, H. Kitagawa, N. Kimizuka
    J. Am. Chem. Soc. 140(1), 291–297 (2018). doi: 10.1021/jacs.7b10249
40. “Stacking fault density and bond orientational order of fcc ruthenium nanoparticles”
    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
    Appl. Phys. Lett. 111, 253101 (2017). doi: 10.1063/1.5006830
41. “The Role of a Three Dimensionally Ordered Defect Sublattice on the Acidity of a Sulfonated Metal–Organic Framework”
    J. M. Taylor,* T. Komatsu, S. Dekura, K. Otsubo, M. Takata, H. Kitagawa*
    J. Am. Chem. Soc. 137(35), 11498–11506 (2015). doi: 10.1021/jacs.5b07267
42. “Defect Control To Enhance Proton Conductivity in a Metal–Organic Framework”
    J. M. Taylor,* S. Dekura, R. Ikeda, H. Kitagawa*
    Chem. Mater. 27(7), 2286–2289 (2015). doi: 10.1021/acs.chemmater.5b00665
43. “Shape-Dependent Hydrogen-Storage Properties in Pd Nanocrystals: Which Does Hydrogen Prefer, Octahedron (111) or Cube (100)?”
    G. Li, H. Kobayashi,* S. Dekura, R. Ikeda, Y. Kubota, K. Kato, M. Takata, T. Yamamoto, S. Matsumura, H. Kitagawa*
    J. Am. Chem. Soc. 136(29), 10222–10225 (2014). doi: 10.1021/ja504699u
44. “First in situ NMR observation of hydrogen adsorbed inside [Cu3(btc)2] at ambient temperature and pressure”
    S. Dekura, H. Kobayashi, G. Li, R. Ikeda, Y. Kubota, M. Takata, H. Kitagawa*
    Chem. Lett. 43(8), 1363–1364 (2014). doi: 10.1246/cl.140404

Others