Tomoyuki Akutagawa 研究室

主宰者：Tomoyuki Akutagawa

東北大学

AI 要約（直近 5 年の研究成果）

本研究室は、有機分子と無機イオンが織り成す結晶構造の設計と、その物理的性質の制御に取り組んでいます。特に、分子間の水素結合やハロゲン相互作用、π–π スタッキングといった弱い相互作用を利用して、狙った構造を形成させ、それらの構造がどのような電気的・磁気的・光学的性質を示すかを調べています。対象は有機結晶、金属錯体、イオン複合体など多岐にわたり、単なる基礎科学にとどまらず、センサーや熱エネルギー貯蔵材料など実用を見据えた研究も進めています。主な研究テーマとしては、プロトン伝導特性を持つ結晶の設計、外部刺激（光・電場・熱など）に応答する分子の開発、そして化学的処理によって可逆的に構造を変化させる材料の開発が挙げられます。例えば、アミド基の水素結合を利用した一次元や二次元の分子配列構造の形成、塩化物や臭化物などの無機イオンの比率を変えることで強誘電性を制御する研究、さらにはゲスト分子を含む包含結晶内でのゲスト分子のダイナミクス制御など、分子レベルでの緻密な設計と制御が特徴です。これらの研究を通じて、材料の機能と分子構造の関係を解明し、新しい機能性材料の創出を目指しています。

※ AI（Claude）が、公開されている論文要旨から研究の問い・手法・主要な発見を事実情報として抽出・再構成して自動生成しています。誤りを含む可能性があるため、正確性は研究室公式情報でご確認ください。

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研究成果（100 件）

[2026] Molecular Assemblies and Proton Conductivity of Triazole-Fused Tetraphenylene
DOI: https://doi.org/10.1021/acs.chemmater.6c00770
[2026] Morphology Control in PDVT-10/DTCP Hybrid Films via Meniscus-Guided Cooperative Crystallization for High-Performance OFETs
DOI: https://doi.org/10.1021/acsami.5c23619
[2026] Thermally deblockable waterborne polyurethane–dye conjugates for durable textile coloration and digital deposition feasibility
DOI: https://doi.org/10.1016/j.polymer.2026.129688
[2026] Reversible hydration-induced ionic conductivity switching accompanied by large desorption enthalpy in sodium salts of 1,2,3-triazole-fused p -benzoquinone
DOI: https://doi.org/10.1039/d5tc04307g
[2026] Potassium-ion-responsive chiral supramolecular hydrogels exhibiting long-range chirality transfer from <scp>d</scp> - or <scp>l</scp> -alanine to achiral frameworks
DOI: https://doi.org/10.1039/d5cc07173a
[2026] Solid state ESIPT emission switching containing hydroquinone and p -benzoquinone units and their charge-transfer complexes
DOI: https://doi.org/10.1039/d6tc00493h
[2026] Reversible molecular rearrangement of nickel phthalocyanine between α- and x-forms in a crystalline solid by chemical treatment
DOI: https://doi.org/10.1039/d6ce00329j
[2025] Porous Organic Frameworks Utilizing Halogen···Halogen Interactions of X4–tetra[2,3]Thienylene (X = Br, I): Guest Dynamics and Dielectric Response
DOI: https://doi.org/10.1002/chem.202502872
[2025] Proton Conductivities of Stepwise Protonated Imidazole‐Fused Tetraphenylene Derivatives
DOI: https://doi.org/10.1002/chem.202502622
[2025] Molecular design and physical properties of alkylamide-substituted 3-fold symmetric molecules
DOI: https://doi.org/10.1093/chemle/upaf184

続きを表示（残り 90 件）

[2025] Ring-Size Effect on Molecular Assembly Structures and Optical Properties of C3-Symmetrical Dehydrobenzoannulene Derivatives
DOI: https://doi.org/10.1021/acs.jpcb.5c04027
[2025] Synthesis and Physical Properties of Salphen‐Conjugated TTF‐Metal Complex [CuII(TTF‐Salphen)]2PF6
DOI: https://doi.org/10.1002/ajoc.202500590
[2025] Synthesis and Near‐Infrared to Infrared Absorption Properties of a Hexabenzocoronene Radical Cation with a Double‐Concave Structure
DOI: https://doi.org/10.1002/ceur.202500089
[2025] Ferroelectricity and phase transition of halide solid-solution dabcoH(Br_x I_{1-x})
[2025] Supramolecular Polymorphism of the Hydrogen-Bonded C3-Symmetrical Hexadehydrotribenzo[12]annulene Derivative
DOI: https://doi.org/10.1021/jacs.5c02529
[2025] Ferroelectric-like Polarization Switching in Plastic Crystalline Succinonitrile
DOI: https://doi.org/10.1021/jacs.5c04778
[2025] Manipulating the dynamics of chiral molecular bearings through subtle structural changes of guest molecules
DOI: https://doi.org/10.1002/anie.202425308
[2025] Spin and Structural Dynamics of Persistent π‐Mer and π‐Dimer of a Tethered S,C,C‐Bridged Triphenylamine Dimer
DOI: https://doi.org/10.1002/chem.202500576
[2025] Geometry‐Dependent Energy‐Gap Modulation of π‐Conjugated Systems Based on Hypervalent Silicon(IV)‐Fused Azomethine Compounds
DOI: https://doi.org/10.1002/chem.202500506
[2025] Elastic Properties of Dichloro- and Dibromoanthracene Crystals
DOI: https://doi.org/10.1021/acs.cgd.4c01035
[2025] Harnessing inhomogeneous π-aggregates: a new path to optical modulation in methyl salicylate-based solvent-free liquids
DOI: https://doi.org/10.1039/d5sc06148b
[2025] Photodimerization of Ferroelectric N,N′-Ditetradecyl-stilbenediamide Derivative
DOI: https://doi.org/10.1021/jacs.5c00346
[2025] Magnetoresistance effect based on spin-selective transport in nanodevices using chiral molecules
DOI: https://doi.org/10.1039/d5nr01259g
[2025] Synthesis, crystallographic study and solid-state properties of metal-free perovskites with P-atom containing A-site cations
DOI: https://doi.org/10.1039/d5ce00177c
[2025] Single-crystal-to-single-crystal transformation based on ionophore-like transport
DOI: https://doi.org/10.1093/chemle/upae252
[2025] Insulator–metal transition induced by band-filling modulation in molecular Mott insulators
DOI: https://doi.org/10.1039/d5dt00525f
[2025] Ferroelectricity and phase transition of halide solid-solution dabcoH(Br x I 1− x )
DOI: https://doi.org/10.1039/d5dt00583c
[2025] Manipulating the dynamics of chiral molecular bearings through subtle structural changes of guest molecules
DOI: https://doi.org/10.1002/ange.202425308
[2024] Solution State‐Like Reactivity of a Flexible Crystalline Werner‐Type Metal Complex
DOI: https://doi.org/10.1002/anie.202407924
[2024] Dynamic Polar Hydrogen Bonds and Photoconductivity of an Alkylamide-Substituted Carbazole Derivative
DOI: https://doi.org/10.1021/acs.jpcc.4c06143
[2024] Solid‐State Ion Exchange of Organic Ammonium Cations in Molecular Crystals
DOI: https://doi.org/10.1002/ejic.202400675
[2024] Shrinkable muscular crystal with chemical logic gates driven by external ion environment
DOI: https://doi.org/10.1038/s43246-024-00674-2
[2024] Solvent-assisted mechanochemical crystallization of metal-free perovskite solid solution (H2dabco, H2hmta)NH4(BF4)3
[2024] Proton Conductivity Switch for Hydrogen-Bonding Octaaminotetraphenylene Salts Through Crystal–Amorphous Transformation During H2O Sorption
DOI: https://doi.org/10.1021/acs.jpcc.4c03866
[2024] Solution State‐Like Reactivity of a Flexible Crystalline Werner‐Type Metal Complex
DOI: https://doi.org/10.1002/ange.202407924
[2024] Proton Conduction in Chiral Molecular Assemblies of Azolium–Camphorsulfonate Salts
DOI: https://doi.org/10.1021/jacs.4c07429
[2024] Effect of halide solid solution on the structure, phase transition behaviour and dielectric properties of DabcoH^+ chains
[2024] Supramolecular Chirality Achieved by Assembly of Small π-Molecules of Octahydrobinaphtols with Axial Chirality
DOI: https://doi.org/10.1021/acs.jpcb.3c08464
[2024] Carrier Transport Switching of Ferroelectric BTBT Derivative
DOI: https://doi.org/10.1021/jacs.4c00514
[2024] Ferroelectricity of alkylamide-substituted triptycene derivatives
[2024] Biased Bowl-Direction of Monofluorosumanene in the Solid State
DOI: https://doi.org/10.1021/jacs.3c11311
[2024] Ferroelectricity of alkylamide-substituted triptycene derivatives
DOI: https://doi.org/10.1039/d3tc04752k
[2024] Condensed π-molecular arrangement for –C 2 H 4 SO 3 − armed naphthalenediimide
DOI: https://doi.org/10.1039/d3tc04231f
[2024] Solvent-assisted mechanochemical crystallization of the metal-free perovskite solid solution (H 2 dabco, H 2 hmta)NH 4 (BF 4 ) 3
DOI: https://doi.org/10.1039/d4cc04010d
[2024] A 15-crown-5-ether-based supramolecular hydrogel with selection ability for potassium cations via gelation and colour change
DOI: https://doi.org/10.1039/d4sm00906a
[2024] Effect of halide solid solution on the structure, phase transition behaviour and dielectric properties of dabcoH + chains
DOI: https://doi.org/10.1039/d4ce00310a
[2023] Endocytosis-Like Vesicle Fission Mediated by a Membrane-Expanding Molecular Machine Enables Virus Encapsulation for In Vivo Delivery
DOI: https://doi.org/10.1021/jacs.2c12348
[2023] Dual-radical-based molecular anisotropy and synergy effect of semi-conductivity and valence tautomerization in a photoswitchable coordination polymer
DOI: https://doi.org/10.1093/nsr/nwad047
[2023] Crystallographic and dielectric studies of tetrahedral {NH 4 @Fe 4 } crystallized with halomethane molecules
DOI: https://doi.org/10.1039/d3ce00429e
[2023] Unique Thermal Structural Phase Transitions Exhibited by Unsymmetrical Organometallic Gold(III)‐Dithiolene Complexes with Pentylthio and Hexylthio Groups
DOI: https://doi.org/10.1002/ejic.202300017
[2023] Ferroelectricity and Phase Change Memory of Bis(tetradecylamide)-Substituted Benzene Derivatives
DOI: https://doi.org/10.1021/acs.jpcc.2c07343
[2023] Uniaxial negative thermal expansion induced by molecular rotation in a one-dimensional supramolecular assembly with associated peculiar magnetic behavior
DOI: https://doi.org/10.1039/d2tc04874d
[2023] Ferroelectric Organic Semiconductor: [1]Benzothieno[3,2-b][1]benzothiophene-Bearing Hydrogen-Bonding −CONHC14H29 Chain
DOI: https://doi.org/10.1021/acsami.3c14476
[2023] Proton Conduction Crossover and Pyrophosphate Bond Formation of −PO3H– Substituted Naphtalenediimide Salts
DOI: https://doi.org/10.1021/acs.jpcc.3c03931
[2023] Crystal Design of Photodimerization and Proton Dynamics in Stilbene Dicarboxylate Salts
DOI: https://doi.org/10.1021/acs.cgd.3c01212
[2023] Hydrophilic and Hydrophobic Channels of Flexible Crystal Lattice: (Guanidinium)2(Benzene-1,4-disulfonate)·n(XC6H5)
DOI: https://doi.org/10.1021/acs.cgd.3c00860
[2023] Selective Gas Sensing under a Mixed Gas Flow with a One-Dimensional Copper Coordination Polymer
DOI: https://doi.org/10.1021/acs.inorgchem.3c01641
[2023] 強い水素結合ネットワークを有するホウ酸単結晶の熱輸送特性評価
[2023] Structural and physical properties of R-BTBT-CONHC14H29 (R = H, C8H17)
DOI: https://doi.org/10.1107/s2053273323084012
[2023] Optical and redox properties and molecular assembly structures of π-expanded tetrathienylene isomers
DOI: https://doi.org/10.1107/s2053273323084024
[2023] Plastic crystalline dual rotator of sulfonamide derivative
DOI: https://doi.org/10.1107/s2053273323084000
[2023] Effect of alkylamide chain number on physical properties of triptycenecarboxamide derivatives
DOI: https://doi.org/10.1107/s2053273323084036
[2023] Irreversible Structural Phase Transition in [(9‐triptycylammonium) ([18]crown‐6)][Ni(dmit)2]: Origin and Effects on Electrical and Magnetic Properties
DOI: https://doi.org/10.1002/ejic.202300449
[2023] Chiral Plastic Crystal of Solid-State Dual Rotators
DOI: https://doi.org/10.1021/acs.cgd.3c00495
[2023] Chalcogen-Peierls Transition: Single-Crystal-to-Single-Crystal Transition from a Two-Dimensional to a One-Dimensional Network of Chalcogen Bonds at Low Temperature
DOI: https://doi.org/10.1246/bcsj.20230091
[2023] Room-Temperature Magnetoresistance in Nanojunctions Consisting of C8-BTBT Molecules Sandwiched Between Two Magnetic Thin-Film Edges
DOI: https://doi.org/10.1109/intermagshortpapers58606.2023.10228342
[2023] Crystal Engineering, Electron Conduction, Molecular Recognition and Reactivity by Chalcogen Bonds in Tetracyanoquinodimethanes Fused with [1,2,5]Chalcogenadiazoles
[2023] Chalcogen-Peierls Transition: Single-Crystal-to-Single-Crystal Transition from a Two-Dimensional to a One-Dimensional Network of Chalcogen Bonds at Low Temperature
[2023] Noninvasive Three-dimensional Assessment of Single Molecular Crystals Using Multiphoton Microscopic Observation and Their Deformation-induced Emission Characteristics
DOI: https://doi.org/10.1021/acs.langmuir.3c01030
[2023] Crystal Engineering, Electron Conduction, Molecular Recognition and Reactivity by Chalcogen Bonds in Tetracyanoquinodimethanes Fused with [1,2,5]Chalcogenadiazoles
DOI: https://doi.org/10.1055/a-2072-2951
[2023] Multifunctional Triggering by Solid-Phase Molecular Motion: Relaxor Ferroelectricity, Modulation of Magnetic Exchange Interactions, and Enhancement of Negative Thermal Expansion
DOI: https://doi.org/10.1021/acs.chemmater.2c03552
[2022] Room-temperature magnetoresistance in Ni 78 Fe 22 /C8-BTBT/Ni 78 Fe 22 nanojunctions fabricated from magnetic thin-film edges using a novel technique
DOI: https://doi.org/10.1039/d2na00442a
[2022] Large electric piezoresistance of the flexible molecular semiconductive crystal Q(TCNQ) 2 during bending
DOI: https://doi.org/10.1039/d2ce00571a
[2022] Slider-crank mechanism in a molecular crystal: conversion of linear thermal expansion of a lattice to circular rotation of a coordination chain
DOI: https://doi.org/10.1039/d2ce00768a
[2022] Proton Conduction at High Temperature in High‐Symmetry Hydrogen‐Bonded Molecular Crystals of RuIII Complexes with Six Imidazole–Imidazolate Ligands
DOI: https://doi.org/10.1002/chem.202202355
[2022] Dielectric response of 1,1-difluorosumanene caused by an in-plane motion
[2022] Tuning the dielectric response by co-crystallisation of sumanene and its fluorinated derivative
DOI: https://doi.org/10.1039/d2cc02766f
[2022] The strong correlations between thermal conductivities and electronic spin states in the crystals of Fe( <scp>iii</scp> ) spin crossover complexes
DOI: https://doi.org/10.1039/d2dt01597h
[2022] Tetranitro- and tetraamino-dibenzo[18]crown-6-ether derivatives: complexes for alkali metal ions, redox potentials, crystal structures, molecular sorption, and proton conducting behaviours
DOI: https://doi.org/10.1039/d2ce00582d
[2022] Structural Transformable Coulomb Lattice of n-Type Semiconductors for Guest Sorption
DOI: https://doi.org/10.1021/acsami.2c17979
[2022] Effects of Hydride Transfer Ring-Opening Reaction on B(C6F5)3 Catalyzed Polymerization of D4H Cyclosiloxane and Dialkoxysilanes toward Thermally Stable Silsesquioxane–Siloxane Hybrid Materials
DOI: https://doi.org/10.1021/acs.macromol.2c00948
[2022] Proton Conduction at High Temperature in High‐Symmetry Hydrogen‐Bonded Molecular Crystals of RuIII Complexes with Six Imidazole‐Imidazolate Ligands
DOI: https://doi.org/10.1002/chem.202201397
[2022] Benzenetriimide‐Based Molecular Conductor with Antiferro‐ to Ferromagnetic Switching Induced by Structural Change of π‐stacked Array
DOI: https://doi.org/10.1002/cphc.202200322
[2022] Supramolecular Complexation and Collective Optical Properties Induced by Linking Two Methyl Salicylates via a σ-Bridge
DOI: https://doi.org/10.1021/acs.jpcb.2c00842
[2022] Thermal Conductivities and Figures of Merit of Tetracyanoquinodimethane-Based Thermoelectric Materials Consisting of Cations Exhibiting Order–Disorder Transitions
DOI: https://doi.org/10.1021/acs.cgd.2c00161
[2022] Solid‐State Fluorescence of Excited‐State Cation–Anion Intermolecular Proton Transfer in 2‐(2‐Hydroxypyridyl)benzothiazole
DOI: https://doi.org/10.1002/adom.202200134
[2022] Ferroelectrics Coupled with Unidirectional Rotation in Liquid Crystals
DOI: https://doi.org/10.1021/acs.jpcc.1c10313
[2022] Chalcogen Bond versus Halogen Bond: Changing Contributions in Determining the Crystal Packing of Dihalobenzochalcogenadiazoles
DOI: https://doi.org/10.1246/bcsj.20220008
[2022] Dynamic supramolecular cations in conductive and magnetic [Ni(dmit)2] crystals
DOI: https://doi.org/10.1016/j.ccr.2022.214881
[2022] Benzenetriimide‐Based Molecular Conductor with Antiferro‐ to Ferromagnetic Switching Induced by Structural Change of π‐stacked Array
DOI: https://doi.org/10.1002/cphc.202200691
[2022] Insight into the Gd–Pt Bond: Slow Magnetic Relaxation of a Heterometallic Gd–Pt Complex
DOI: https://doi.org/10.1246/bcsj.20210429
[2022] Chalcogen Bond versus Halogen Bond: Changing Contributions in Determining the Crystal Packing of Dihalobenzochalcogenadiazoles
[2022] Simple molecular ferroelectrics: N , N ′-dialkyl-terephthalamide derivatives in the solid phase
DOI: https://doi.org/10.1039/d1tc05001j
[2022] Thermosalient Effect of 5-Fluorobenzoyl-4-(4-methoxyphenyl)ethynyl-1-methylimidazole without Phase Transition
DOI: https://doi.org/10.1021/acs.cgd.2c00547
[2022] トリプチセントリカルボキサミド誘導体の分子集合体構造と強誘電性
[2022] Heterospin frustration in a metal-fullerene-bonded semiconductive antiferromagnet
DOI: https://doi.org/10.1038/s41467-022-28134-w
[2022] Dielectric response of 1,1-difluorosumanene caused by an in-plane motion
DOI: https://doi.org/10.1039/d2qm00134a
[2021] Electrostatic versus van der Waals Interactions in an n-Type Semiconducting Dianionic Naphthalenediimide Derivative with CnH2n+1NH3+ (n = 1–16)
DOI: https://doi.org/10.1021/acs.jpcc.1c05176
[2021] Donor-Type Nickel–Dithiolene Complexes Fused with Bulky Cycloalkane Substituents and Their Application in Molecular Conductors
DOI: https://doi.org/10.3390/cryst11101154
[2021] Crystal Structures and Physical Properties of (M+)(Crown Ethers)x(TCNQ)y Salts with M+ = Li+, Na+, K+, Rb+, and Cs+
DOI: https://doi.org/10.1021/acs.cgd.1c00812

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AI 要約（直近 5 年の研究成果）

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関連研究室(8 件)

研究成果（100 件）

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