Supramolecular conformational control of photolability in polymer networks crosslinked with a kinetically stable pseudo[1]rotaxane based on a coumarinylmethyl ester
H. Masai, N. Niikura, G. M. Russell, Y. Kawano, S. Tsuda, T. Iwai, J. Terao
Chem.Sci., in press (2025). doi.org/10.1039/D5SC01641J
Azido-enabled thermal history analysis on a metal-oxide surface
S. Yamaguchi, T. Iwai, H. V. Miyagishi, H. Masai, T. Hosomi, T. Yanagida, K. Uchida, J. Terao
Nanoscale, 17, 13207 (2025).
Molecular‐Templated ALD on Mixed SAM to Achieve Unimolecular Dispersion and In‐Process Fluorescent Monitoring of Template Molecules
T. Ono, T. Hosomi, H. Saito, H. Masai, M. Ikeuchi, J. Liu, W. Tanaka, T. Takahashi, M. Kanai, J. Terao, T. Yanagida
Adv. Mater. Technol., 10, 2401639 (2025).
Kinetic Control of Threading and Dethreading in Linked Rotaxanes via Hydrogen Bonding
H. V. Miyagishi, S. Yamaguchi, S. Tsuda, H. Masai, J. Terao
Chem. Asian. J., 20, e202500302 (2025).
Cyclic (Alkyl)(amino)silylene Aluminum(III) Iodide Complex and Its Nucleophile Dependent Reactivities
T. Koike, A. Sato, N. Sakurata, T. Iwamoto*
Organometallics, 10.1021/acs.organomet.5c00058 (2025).
Synergistic Degradation of Durable Polymer Networks by Light and Acid Enabled by Pyrenylsilicon Crosslinks
Y. Kawano, H. Masai*, T. Tsubokawa, D. Yokogawa, T. Iwai, J. Terao*
Adv. Mater., 37, 202412544 (2025).
Ph3PC – A Monosubstituted C(0) Atom in Its Triplet State
Y. Kutin, T. Koike, M. Drosou, A. Schnegg, D. Pantazis*, M. Kasanmascheff*, M. M. Hansmann*
Angew. Chem. Int. Ed. e202424166, accepted article (2025).
解説：炭素原子を手懐ける --精密な分子編集を志向した試薬開発
小池太智, M. M. Hansmann
月刊化学2025年１月号.
Bidirectional Molecular Motors by Controlling Threading and Dethreading Pathways of a Linked Rotaxane
H. V. Miyagishi, H. Masai, J. Terao
Angew. Chem. Int. Ed., 64, e202414307 (2024).
Insulated π-Conjugated Azido Scaffolds for Stepwise Functionalization via Huisgen Cycloaddition on Metal Oxide Surfaces
Q. Jiang, T. Iwai, M. Jo, T. Hosomi, T. Yanagida, K. Uchida, K. Hashimoto, T. Nakazono, Y. Yamada, A. Kobayashi, S. Takizawa, H. Masai, J. Terao
Small, 20, 2403717 (2024).
Logic Operation and Real-Time Communication via Tunable Excited States in a Single-Molecule Optoelectronic Chip
C. Yang, Y. Guo, H. Masai, T. Iwai, J. Jie, H. Su, J. Terao, X. Guo
Chem, 10,1445–1457 (2024).
Recent progress in photo-reactive crosslinkers in polymer network materials toward advanced photo-controllability
H. Masai, T. Nakagawa, J. Terao
Polym. J. 56, 297–307 (2024).
Post-Synthetic Modification of Near-Infrared Absorbing Cyclodextrin-Encapsulated Cyanine Dyes for Controlling Absorption Wavelength, Stability, and Singlet Oxygen Generation
H. Zhang, Y. Masui, H. Masai, J. Terao
Bull. Chem. Soc. Jpn. 97, uoae055 (2024). [selected as BCSJ Award and Front Cover]
Insulated -Conjugated 2,2’-Bipyridine Transition-Metal Complexes: Enhanced Photoproperties in Luminescence and Catalysis
T. Iwai, S. Abe, S. Takizawa, H. Masai，J. Terao
Chem. Sci. 15, 8873–8879 (2024).
Ph3PCN2: A stable reagent for carbon-atom transfer
T. Koike, J.-K. Yu, M. M. Hansmann*
Science 385, 305–311 (2024).
Cycloadditions of Diazoalkenes with P4 and tBuCP: Access to Diazaphospholes
S. Hauer, J. Reitz, T. Koike, M. M. Hansmann*, R. Wolf*
Angew. Chem. Int. Ed. 63, e202410107 (2024).
Isolable Si=B Analogue of a Vinyl Halide: A Building Block for Facile Access toward Silicon-Boron Multiple Bonded Species
T. Koike, N. Sakurata, S. Ishida, T. Iwamoto*
Angew. Chem. Int. Ed. 63, e202411283 (2024).
光安定性／分解性を両立する協働的光分解技術
正井 宏
シーエムシー出版, 高分子材料の分解制御技術, 第10章
Fabrication of Photoprocessable Materials via Photopolymerization Using an Acid-Induced Photocleavable Platinum-Acetylide Crosslinker
T. Kaneko, G. M. Russell, Y. Kawano, H. Masai*, J. Terao*
Angew. Chem. Int. Ed. 62, e202305374 (2023).
Multistate Structural Switching of [3]Catenanes with Cyclic Porphyrin Dimers by Complexation with Amine Ligands
Y. Oka, H. Masai, J. Terao
Angew. Chem. Int. Ed. 62, e202217002 (2023). (selected as Hot Paper and Front Cover)
Controlling Excited-State Dynamics and Chemical Reactivities of Platinum Acetylide Complexes via Self-Threading Ligands with Permethylated α-Cyclodextrin
H. Masai
Bull. Chem. Soc. Jpn., 96, 1196–1205 (2023).
Luminescent Thermoresponse via Excimer/Exciplex Transition of Pyrene Derivative in Polymer Networks Containing [3]Rotaxane
T. Nakagawa, S. Ishino, D. Inamori, H. Masai*, J. Terao*
ACS Macro Lett. 12, 751–758 (2023).
Ion Pairing of Cationic and Anionic Ir(III) Photosensitizers for Photocatalytic CO2 Reduction at Lipid-Membrane Surfaces
S. Takizawa, T. Okuyama, S. Yamazaki, K. Sato, H. Masai, T. Iwai, S. Murata, J. Terao
J. Am. Chem. Soc. 145, 15049–15053 (2023).
Effects of Alkyl Ester Chain Length on the Toughness of PolyAcrylate-Based Network Materials
Y. Kawano, H. Masai*, S. Nakagawa, N. Yoshie, J. Terao*
Polymers 15, 2389 (2023).
Efficient Electrocatalytic H2O2 Evolution Utilizing Electron-conducting Molecular Wires Spatially Separated by Rotaxane Encapsulation
S.-Y. Chou, H. Masai*, M. Otani, H. V. Miyagishi, G. Sakamoto, Y. Yamada*, Y. Kinoshita, H. Tamiaki, T. Katase, H. Ohta, T. Kondo, A. Nakada, R. Abe, T. Tanaka, K. Uchida, J. Terao*
Appl. Catal. B 327, 122373 (2023).
Cyclobutenylidene: A Multifaceted Two-Coordinate Carbon Species Obtained via Skeletal Editing of a Cyclopropenylidene
T. Koike*, T. Iwamoto*
J. Am. Chem. Soc. 145, 9264–9272 (2023).
立体保護された白金アセチリド錯体の反応性を活用した高分子ネットワーク材料の開発
正井 宏
Bulletin of Japan Society of Coordination Chemistry, 82, 85-88 (2023).
遷移金属錯体の反応性を活用した光機能性材料
正井 宏
化学と工業, 76, 828–829 (2023).
光加工性高分子ネットワーク材料における光反応性ユニットの開発
正井 宏, 寺尾 潤
日本接着学会誌, 59, 210–218 (2023).
プログラム化された光分解性を持つ高分子材料
正井 宏、寺尾 潤
化学, 78, 64-65 (2023).
Systematic Synthesis of Macrocycles Bearing up to Six 2,2-Bipyridine Moieties through Self-Assembled Double Helix Structure
Y. Onda, H. Masai*, J. Terao*
J. Org. Chem. 87,13331–13338 (2022).
Transient Photodegradability of Photostable Gel Induced by Simultaneous Treatment with Acid and UV Light for Phototuning of Optically Functional Materials
G. M. Russell, T. Kaneko, S. Ishino, H. Masai*, J. Terao*
Adv. Funct. Mater. 32, 2205855 (2022).
Insulation of Coumarin Derivative with [1]Rotaxane to Control Solvation-induced Effects in Excited-state Dynamics for Enhanced Luminescence
G. M. Russell, H. Masai*, J. Terao*
Phys. Chem. Chem. Phys. 24, 15195–15200 (2022).
Effect of changing electronic states of molecules on frequency domain of graphene FETs
T. Oketa, T. Ikuta, H. Masai, T. Tamaki, J. Terao, K. Maehashi
Applied Physics Express 15, 045001 (2022).
Precision Synthesis of Linear Oligorotaxanes and Polyrotaxanes Achieving Well-Defined Positions and Numbers of Cyclic Components on the Axle
H. Masai, Y. Oka, J. Terao
Chem. Comm. 58, 1644–1660 (2022).
Stochastic Binding Dynamics of a Photoswitchable Single Supramolecular Complex
D. Su, S. Zhou, H. Masai, Z. Liu, C. Zhou, C. Yang, Z. Li, S. Tsuda, Z. Liu, J. Terao, X. Guo
Adv. Sci. 9, 202200022 (2022).
Solvatofluorochromic Contrast with Supramolecular Stereoisomers Using Linked Rotaxane Structures to Investigate Local Solvation in Excited Donor-bridge-acceptor Systems
S. Sotaro, H. V. Miyagishi, H. Masai, Y. Masui, J. Terao
Bull. Chem. Soc. Jpn. 95, 163–168 (2022).
Linked Rotaxane Structure Restricts Local Molecular Motions in Solution to Enhance Fluorescence Properties of Tetraphenylethylene
H. V. Miyagishi, H. Masai, J. Terao
Chem. Eur. J. 28, e2021031 (2022).
Irradiation with UV Light Accelerates the Migita–Kosugi–Stille Coupling Reaction in Air
T. Ishikawa, M. Murata, H. Masai, T. Iwai, J. Terao
Chem. Lett. 51, 124-126 (2022).
Synthesis, Structure and Electronic Properties of a Stable π-Type 3-Electron-2-Center-Bonded Species: A Silicon Analogue of a Bicyclo[1.1.0]butane Radical Anion
T. Koike, R. Osawa, S. Ishida, T. Iwamoto*
Angew. Chem. Int. Ed. 61, e202117584 (2022).
Twisted push–pull disilenes obtained by direct 1,2-hydro/chloroborylation of a silylone
T. Koike, T. Iwamoto*
Chem. Commun. 58, 8061−8064 (2022).
An Isolable 2,4-Diaminotetrasila- bicyclo[1.1.0]but-1(3)-ene: Effects of Amino Groups at the Bridge Positions
T. Koike, S. Honda, T. Iwamoto*
Chem. Lett. 51, 77−80 (2022).
ロタキサン構造を架橋剤とした高分子材料の機械的強度と発光機能の向上
正井 宏, ラッセル豪マーティン, 寺尾 潤
マテリアルステージ 22, 57–62 (2022).
Electrical Detection of ppb Region NO2 using Mg-porphyrin-modified Graphene Field-effect Transistors
T. Ikuta, T. Tamaki, H. Masai, R. Nakanishi, K. Endo, J. Terao, K. Maehashi
Nanoscale Adv. 3, 5793–5800 (2021).
Maximizing Conversion of Surface Click Reactions for Versatile Molecular Modification on Metal Oxide Nanowires
R. Yamaguchi, T. Hosomi, M. Otani, K. Nagashima, T. Takahashi, G. Zhang, M. Kanai, H. Masai, J. Terao, T. Yanagida
Langmuir 37, 5172–5179 (2021).
A Single-Molecule Electrical Approach for Amino Acid Detection and Chirality Recognition
Z. Liu, X. Li, H. Masai, X. Huang, S. Tsuda, J. Terao, J. Yang, X. Guo
Science Advance 7, abe4365 (2021).
Conformationally Switchable Silylone: Electron Redistribution Accompanied by Ligand Reorientation around a Monatomic Silicon
T. Koike, T. Nukazawa, T. Iwamoto*
J. Am. Chem. Soc. 143, 14332−14341 (2021).
Intermolecular C−H Activation at the Allylic/Benzylic and Homoallylic/Homobenzylic Positions of Cyclic Hydrocarbons by a Stable Divalent Silicon Species
T. Koike, T. Kosai, T. Iwamoto*
Chem. Eur. J. 27, 724−734 (2021).
Synthetic Access to Pentacene-Silylene Adducts via Dehydrogenative Silylation of a 5,14-Dihydropentacene with a Stable Silylene
T. Koike, T. Iwamoto*
Eur. J. Org. Chem. 2021, 2219−2222 (2021).
[n]ロタキサン精密合成のための新戦略
正井 宏
有機合成化学協会誌 79, 243–245 (2021)．
連結型ロタキサン構造による分子間絶縁性高分子の設計と機能性材料への応用
正井 宏，寺尾 潤
高分子材料の絶縁破壊・劣化のメカニズムとその対策 214–224 (2021)．
数と位置が規定された貫通構造をもつ一次元高分子の精密合成と機能
正井 宏，寺尾 潤
高分子 70, 95–99 (2021)．
Insulated Conjugated Bimetallopolymer with Sigmoidal Response by Dual Self-controlling System as a Biomimetic Material
H. Masai, T. Yokoyama, H. V. Miyagishi, M. Liu, Y. Tachibana, T. Fujihara, Y. Tsuji, J. Terao
Nature Communications 11, 408 (2020).
Change in the rate of pseudo[1]rotaxane formation by elongating the alkyl-chain-substituted diphenylethynylene linked to permethyl -cyclodextrin
S. Ishino, H. Masai, S. Shimada, J. Terao
Tetrahedron Lett. 61, 152061 (2020).
Suppression of Undesirable Isomerization and Intermolecular Reactions of Double Bonds by a Linked Rotaxane Structure
H. V. Miyagishi, H. Masai, J. Terao
Chem. Asian J., 15, 1890–1895 (2020).
Mechanical Switching of Current-voltage Characteristics in Spiropyran Single-molecule Junctions
T. Tamaki, K. Minode, Y. Numai, T. Ohto, R. Yamada, H. Masai, H. Tada, J. Terao
Nanoscale 12, 7527–7531 (2020).
Synthesis of Insulated Heteroaromatic Platinum–Acetylide Complexes with Color-Tunable Phosphorescence in Solution and Solid States
H. Masai, M. Liu, Y. Tachibana, S. Tsuda, J. Terao
J. Org. Chem. 85, 3082–3091 (2020).
Complementary Color Tuning by Acid via Phosphorescence/Fluorescence Transition on Insulated Metallopolymer Film and Its Light-induced Acceleration
S. Kaneko, H. Masai, T. Yokoyama, M. Liu, Y. Tachibana, T. Fujihara, Y. Tsuji, J. Terao
Polymers 12, 244 (2020).
Co-Porphyrin Functionalized CVD Graphene Ammonia Sensor with High Selectivity to Disturbing Gases: Hydrogen and Humidity
K. Sawada, T. Tanaka, T. Yokoyama, R. Yamachi, Y. Oka, Y. Chiba, H. Masai, J. Terao, K. Uchida
Jpn. J. App. Phys. 59, SGGG09 (2020).
Macroscopic Change in Luminescent Color via Thermally Driven Sliding Motion in [3]Rotaxane
D. Inamori, H. Masai, T. Tamaki, J. Terao
Chem. Eur. J. 26, 3385–3389 (2020).
[1+2] Cycloaddition of a Cyclic (Alkyl)(amino)silylene and a Disilyne Providing a 3-Aminocyclotrisilene
T. Koike, S. Honda, S. Ishida, T. Iwamoto
Organometallics 39, 4149−4152 (2020).
Luminescent and Mechanical Enhancement of Phosphorescent Hydrogel through Cyclic Insulation of Platinum-acetylide Crosslinker
G. M. Russell, D. Inamori, H. Masai*, T. Tamaki, Jun Terao*
Polym. Chem. 10, 5280–5284 (2019).
Revealing Charge-and Temperature-Dependent Movement Dynamics and Mechanism of Individual Molecular Machines
C. Zhou, X. Li, H. Masai, Z. Liu, Y. Lin, T. Tamaki, J. Terao, J. Yang, X. Guo
Small Methods 12, 1900464 (2019).
Synthetic Methodologies for Structurally Defined Linked-[n]Rotaxanes with Permethylated Cyclodextrins: Platform for Functionalized Molecular Electronics
H. Masai, J. Terao
Bull. Chem. Soc. Jpn., 92, 529–539 (2019).
Two-Step Template Method for Synthesis of Axis-Length-Controlled Porphyrin-Containing Hollow Structures
Y. Chiba, Y. Oka, H. Masai, W. Matsuda, T. Fujihara, Y. Tsuji, J. Terao
Chem. Commun. 55, 6755–6758 (2019)
Synthesis and Acid-Responsiveness of an Insulated π-Conjugated Polymer containing Spiropyrans in its Backbone
H. V. Miyagishi, T. Tamaki, H. Masai, J. Terao
Molecules 24, 1301(2019).
Platinum-Acetylide Crosslinkers for Facile Preparation of Phosphorescent Commodity Polymer Networks with Defect-Free Chromophores
G. M. Russell, H. Masai, J. Terao
Mater. Lett. 247, 182–184 (2019).
Synthetic Methodology for Structurally Defined and Insulated Molecular Wires Bearing Non-centrosymmetric Conjugated Axle Components via Iterative Intramolecular Slippage
S.-Y. Chou, H. Masai, S. Tsuda, J. Terao
Chem. Asian J. 14, 1667–1671(2019).
1,4-Dehydrogenation with a Two-Coordinate Cyclic (Alkyl)(amino)silylene
T. Koike, T. Kosai, T. Iwamoto
Chem. Eur. J. 25, 9295−9302 (2019).
Reversible and Stable Redox Behavior of a Pt(II) Bis(dithiobenzoate)-type Complex Attributed to Rotaxane-based Stabilization
R. Harada, T. Hosomi, H. Masai, J. Terao
Tetrahedron Lett. 59, 2930–2933 (2018).
Kinetic Stabilization of a Ni(II) Bis(dithiobenzoate)-type Complex Achieved Using Three-dimensional Insulation by a [1]Rotaxane Structure
T. Hosomi, R. Harada, H. Masai, T. Fujihara, Y. Tsuji, J. Terao
Chem. Commun. 54, 2487–2490 (2018).
機能性分子ワイヤ
正井 宏，寺尾 潤
CSJ Current Review 31, 96–102 (2018)
Programed Synthesis of Molecular Wires with Fixed Insulation and Defined Length Based on Oligo(phenylene ethynylene) and Permethylated alpha-Cyclodextrins
H. Masai, T. Fujihara, Y. Tsuji, J. Terao
Chem. Eur. J. 23, 15073–15079 (2017). (selected as Back Cover)
Stimuli-Responsive Functionalized Insulated Conjugated Polymers
H. Masai, J. Terao
Polym. J. 49, 805–814 (2017). (selected as a Front Cover)
Regio- and Stereoselective Synthesis of Triarylalkene-Capped Rotaxanes via Palladium-Catalyzed Tandem Sonogashira/Hydroaryl Reaction of Terminal Alkynes
H. Masai, W. Matsuda, T. Fujihara, Y. Tsuji, J. Terao
J. Org. Chem. 82, 5449–5455 (2017).
Enhancement of Carrier Mobility through Deformation Potential in Metal-Containing Insulated Molecular Wires
T. Ohto, H. Masai, J. Terao, W. Matsuda, S. Seki, Y. Tsuji, H. Tada
J. Phys. Chem. C 120, 26637–26644 (2016).
A Typical Metal Ion-Responsive Color-Tunable Emitting Insulated π-Conjugated Polymer Film
T. Hosomi, H. Masai, T. Fujihara, Y. Tsuji, J. Terao
Angew. Chem. Int. Ed. 55, 13427–13431 (2016). (selected as Very Important Paper and Front Cover)
Synthesis of Highly Insulated Conjugated Metallopolymers Containing Terpyridine－Metal Complexes
T. Hosomi, H. Masai, W. Matsuda, S. Seki, T. Fujihara, Y. Tsuji, J. Terao
Chem. Lett. 45, 931–933 (2016).
Rational Design for Rotaxane Synthesis via Intramolecular Slippage: Control of Activation Energy by Rigid Axle Length
H. Masai, J. Terao, T. Fujihara, Y. Tsuji
Chem. Eur. J. 22, 6624–6630 (2016).
Synthesis of Molecular Wires Strapped by π-Conjugated Side Chains: Integration of Dehydrobenzo[20]annulene Units
J. Terao, M. Ohsawa, H. Masai, Y. Kurashige, T. Fujihara, and Y. Tsuji
J. Org. Chem. 80, 8874–8880 (2015).
Effect of Mechanical Strain on Electric Conductance of Molecular Junctions
J. Inatomi, S. Fujii, S. Marques-Gonzalez, H. Masai, Y. Tsuji, J. Terao, M. Kiguchi
J. Phys. Chem. C 119, 19452–19457 (2015).
被覆型共役メタロワイヤの合成と新機能
正井 宏，寺尾 潤，藤原 哲晶，辻 康之
化学工業, 66, 565–570 (2015).
被覆型白金アセチリドポリマーの固体燐光発光
正井 宏，辻 康之，寺尾 潤
光アライアンス, 26, 16–21 (2015).
Enhancement of Phosphorescence and Unimolecular Behavior in the Solid State by Perfect Insulation of Platinum-Acetylide Polymers
H. Masai, J. Terao, S. Makuta, Y. Tachibana, T. Fujihara, Y. Tsuji
J. Am. Chem. Soc. 136, 14714–14717 (2014).
Insulated π-Conjugated Metallopolymers
H. Masai, J. Terao, Y. Tsuji
Tetrahedron Lett. 55, 4035–4043 (2014).
Synthesis of One-Dimensional Metal-Containing Insulated Molecular Wire with Versatile Properties Directed toward Molecular Electronics Materials
H. Masai, J. Terao, S. Seki, S. Nakashima,M. Kiguchi, K. Okoshi, T. Fujihara, Y. Tsuji
J. Am. Chem. Soc. 136, 1742–1745 (2014).
Synthesis of Functionalized Insulated Molecular Wires by Polymerization of an Insulated π-Conjugated Monomer
J. Terao, K. Homma, Y. Konoshima, R. Imoto, H. Masai, W. Matsuda, S. Seki, T. Fujihara, Y. Tsuji
Chem. Commun. 50, 658–660 (2014).
Synthesis and Redox Response of Insulated Molecular Wire Elongated through Iron-Terpyridine Coordination Bonds
J. Terao, T. Hosomi, H. Masai, W. Matsuda, S. Seki, T. Fujihara, Y. Tsuji
Chem. Lett. 43, 1289–1291 (2014).
Synthesis of an organic-soluble π-conjugated [3]rotaxane via rotation of glucopyranose units in permethylated β-cyclodextrin
J. Terao, Y. Konoshima, A. Matono, H. Masai, T. Fujihara, Y. Tsuji
Beilstein J. Org. Chem. 10, 2800–2808 (2014).
Synthesis of Insulated Pt-alkynyl Complex Polymer
J. Terao, H. Masai, T. Fujihara, Y. Tsuji
Chem. Lett. 41, 652–653 (2012).