A01 井本裕顕

井本裕顕		公募　A01
所　属	京都工芸繊維大学大学院工芸科学研究科
役　職	准教授
連絡先	himoto@kit.ac.jp
研究室HP	http://www.cis.kit.ac.jp/~kenaka/index.html
研究課題	非対称ヒ素錯体の高次集積化による機能創発
研究内容	本新学術領域研究では、これまで実験研究が大きく制限されてきた有機ヒ素化合物の中でも、ほぼ手つかずの状態である「非対称ヒ素化合物」の実践的な骨格構築法確立に挑戦するとともに、その高次構造制御と高機能化を目指す。有機化合物におけるヒ素は化学的・立体的に安定という特長があり、15族の中でも”容易に立体反転する窒素”・”空気中で酸化されやすいリン”・”炭素との結合が不安定なアンチモン・ビスマス”とは一線を画した元素である。実験的に取り扱いやすいことに加えて、ヒ素を立体中心とすることで金属と直接相互作用する配位点に不斉が導入されるため、非対称配位圏の設計が単純化される。精密合成技術によって高次に制御された構造と、遷移金属との無限の組み合わせによって発現する機能によって、非対称配位圏の科学が大きく進展すると期待できる。特に、ヒ素含有遷移金属錯体の優れた固体発光特性を活用した、機能性材料に関して研究を強く推進していく。
専門分野	有機合成化学、高分子化学、材料科学
研究キーワード	有機ヒ素化合物・不斉配位子・発光性材料

研究業績

2021

[41] Dibenzoarsacrowns: an experimental and computational study on the coordination behaviors,
Akifumi Sumida; Ryosuke Kobayashi; Takashi Yumura; Hiroaki Imoto; Kensuke Naka, Chem. Commun., 57, 2013 – 2016, 2021
DOI: 10.1039/D0CC07191A.

[40] 2,3‐Diarylbenzo[b]arsole: structural modification and polymerization for tuning of photophysical properties,
Kosuke Ishijima; Susumu Tanaka; Hiroaki Imoto; Kensuke Naka, , , 2021
DOI: 10.1002/chem.202005001.

[39] Superior light-resistant Dithieno[3,2-b:2′,3′-d]arsole-based polymers exhibiting ultrastable amplified spontaneous emission,
Chieko Yamazawa; Yoshinori Hirano; Hiroaki Imoto; Naoto Tsutsumi; Kensuke Naka, Chem. Commun., 57, 1595 – 1598, 2021
DOI: 10.1039/D0CC07521C.

[38] Arsenic‐bridged silafluorene and germafluorene as a novel class of mixed‐heteroatom‐bridged heterofluorenes,
Hiroshi Sasaki; Ippei Akioka; Hiroaki Imoto; Kensuke Naka, European Journal of Organic Chemistry, , 2021
DOI: 10.1002/ejoc.202001644.

[37] Dinuclear rhombic copper(I) iodide complexes with rigid bidentate arsenic ligands,
Ryosuke Kobayashi; Hyota Kihara; Takahiro Kusukawa; Hiroaki Imoto; Kensuke Naka, Chem. Lett., 50, 382 – 385, 2021
DOI: 10.1246/cl.200763.

2020

[36] Soluble and film-formable homopolymer tethering side-opened cage silsesquioxane pendants,
Yuri Sato; Hiroaki Imoto; Kensuke Naka, Journal of Polymer Science, 58, 10, 1456 – 1462, 2020
DOI: 10.1002/pol.20200161.

[35] Corner‐ and Side‐Opened Cage Silsesquioxanes: Structural Effects on the Materials Properties,
Hiroaki Imoto; Yukiho Ueda; Yuri Sato; Masashi Nakamura; Koji Mitamura; Seiji Watase; Kensuke Naka, Eur. J. Inog. Chem., 2020, 9, 737 – 742, 2020
DOI: 10.1002/ejic.201901182.

[34] Dithieno[3,4‐b:3’,4’‐d]arsole: a Novel Class of Hetero[5]radialenes,
Aya Urushizaki; Takashi Yumura; Yuichi Kitagawa; Yasuchika Hasegawa; Hiroaki Imoto; Kensuke Naka, European Journal of Organic Chemistry, 2020, 26, 3965 – 3970, 2020
DOI: 10.1002/ejoc.202000442.

[33] Systematic study on catalytic arsa-Wittig reaction,
Ryoto Inaba; Ikuo Kawashima; Toshiki Fujii; Takashi Yumura; Hiroaki Imoto; Kensuke Naka, Chem. Eur. J., 26, 59, 13400 – 13407, 2020
DOI: 10.1002/chem.202002792.

[32] Fundamental Study on Arsenic(III) Halides (AsX3: X = Br, I) toward Construction of C3-Symmetrical Monodentate Arsenic Ligands,
Susumu Tanaka; Masafumi Konishi; Hiroaki Imoto; Yuma Nakamura; Masatoshi Ishida; Hiroyuki Furuta; Kensuke Naka, Inorg. Chem., 59, 14, 9587 – 9593, 2020
DOI: 10.1021/acs.inorgchem.0c00598.

[31] Dipyridinoarsole: A new class of stable and modifiable heteroatom-bridged bipyridines,
Toshiki Fujii; Susumu Tanaka; Shotaro Hayshi; Hiroaki Imoto; Kensuke Naka, Chem. Commun., 56, 45, 6035 – 6038, 2020
DOI: 10.1039/D0CC02389B.

2019

[30] Polymers and Cyclic Compounds Based on a Side-Opening Type Cage-Silsesquioxane,
Hiroaki Imoto; Yuri Sato; Kensuke Naka, Journal of Polymer Science Part A: Polymer Chemistry, 57, 22, 2243 – 2250, 2019
DOI: 10.1002/pola.29513.

[29] Synthesis of metallosupramolecular polymers incorporating cage silsesquioxanes in the main chains,
Mari Hashimoto; Shunichi Fujii; Hiroaki Imoto; Kensuke Naka, Journal of Polymer Science Part A: Polymer Chemistry, 57, 22, 2260 – 2266, 2019
DOI: 10.1002/pola.29521.

[28] Construction of Bidentate Arsenic Ligand Library Starting from a Cyclooligoarsine,
Hiroaki Imoto; Masafumi Konishi; Shintaro Nishiyama; Hiroshi Sasaki; Susumu Tanaka; Takashi Yumura; Kensuke Naka, Chem. Lett., 48, 11, 1312 – 1315, 2019
DOI: 10.1246/cl.190540.

[27] Soluble Network Polymers Based on Trifunctional Open-Cage Silsesquioxanes,
Hiroaki Imoto; Ayano Ishida; Mari Hashimoto; Yoko Mizoue; Shin-ichi Yusa; Kensuke Naka, Chem. Lett., 48, 10, 1266 – 1269, 2019
DOI: 10.1246/cl.190536.

[26] Syntheses, Structures and Optical Properties of Diaminomaleimide Dimers and Polymer,
Hiroaki Imoto; Ryosuke Fujii; Kensuke Naka, European Journal of Organic Chemistry, 2019, 20, 3086 – 3092, 2019
DOI: 10.1002/ejoc.201900195.

[25] Dibenzoarsepins: Planarization of 8π‐Electron System in the Lowest Singlet Excited State,
Ikuo Kawashima; Hiroaki Imoto; Masatoshi Ishida; Hiroyuki Furuta; Shunsuke Yamamoto; Masaya Mitsuishi; Susumu Tanaka; Toshiki Fujii; Kensuke Naka, Angew. Chem. Int. Ed., 58, 34, 11686 – 11690, 2019
DOI: 10.1002/anie.201904882.

[24] Fluorinated Porous Molecular Crystals: Vapor-Triggered On-Off Switching of Luminescence and Porosit,
Hiroshi Sasaki; Hiroaki Imoto; Takashi Kitao; Takashi Uemura; Takashi Yumura; Kensuke Naka, Chem. Commun., 55, 46, 6487 – 6490, 2019
DOI: 10.1039/C9CC02309G.

[23] Palladium-Catalyzed Arylation of Open-Cage Silsesquioxanes toward Thermally Stable and Highly Dispersible Nanofillers,
Satoshi Wada; Hiroaki Imoto; Kensuke Naka, Bull. Chem. Soc. Jpn., 92, 5, 989 – 994, 2019
DOI: 10.1246/bcsj.2019-0027.

[22] One-pot strategy for synthesis of open-cage silsesquioxane monomers,
Ryoichi Katoh; Hiroaki Imoto; Kensuke Naka, Polymer Chemistry, 10, 18, 2223 – 2229, 2019
DOI: 10.1039/C9PY00036D.

[21] The Dawn of Functional Organoarsenic Chemistry,
Hiroaki Imoto; Kensuke Naka, Chem. Eur. J., 25, 8, 1883 – 1894, 2019
DOI: 10.1002/chem.201804114.

[20] Thermal Properties of Open-Cage Silsesquioxanes: The Effect of Substituents at the Corners and Opening Moieties,
Sota Yuasa; Yuri Sato; Hiroaki Imoto; Kensuke Naka, Bull. Chem. Soc. Jpn., 92, 1, 127 – 132, 2019
DOI: 10.1246/bcsj.20180257.

2018

[19] As-Heteropentacenes: An Experimental and Computational Study on a Novel Class of Heteroacenes,
Hiroaki Imoto; Toshiki Fujii; Susumu Tanaka; Shunsuke Yamamoto; Masaya Mitsuishi; Takashi Yumura; Kensuke Naka, Org. Lett., 20, 18, 5952 – 5955, 2018
DOI: 10.1021/acs.orglett.8b02660.

[18] Electropolymerization of Dithieno[3,2‐b:2′,3′‐d]arsole,
Hiroaki Imoto; Chieko Yamazawa; Shotaro Hayashi; Masami Aono; Kensuke Naka, ChemElectroChem, 5, 22, 3357 – 3360, 2018
DOI: 10.1002/celc.201801069.

[17] Open-cage silsesquioxane necklace polymers having closed-cage silsesquioxane pendants,
Hiroaki Imoto; Ryoichi Katoh; Kensuke Naka, Polymer Chemistry, 9, 30, 4108 – 4112, 2018
DOI: 10.1039/C8PY00758F.

[16] Effect of Mono-Substituents in Heptaisobutyl-Substituted Polyhedral Octasilsesquioxanes on Orientationally Disordered Phase Transition,
Satoshi Morimoto; Hiroaki Imoto; Kenji Kanaori; Kensuke Naka, Bull. Chem. Soc. Jpn., 91, 9, 1390 – 1396, 2018
DOI: 10.1246/bcsj.20180156.

[15] Synthesis and properties of hyperbranched polymers by polymerization of an AB3-type incompletely condensed cage silsesquioxane (IC-POSS) monomer,
Sota Yuasa; Hiroaki Imoto; Kensuke Naka, Polymer Journal, 50, 9, 879 – 887, 2018
DOI: 10.1038/s41428-018-0071-5.

[14] Syntheses of dithienoarsole–containing polymers via Suzuki-Miyaura and Sonogashira-Hagihara coupling reactions,
Hiroaki Imoto; Chieko Yamazawa; Kensuke Naka, Chem. Lett., 47, 7, 887 – 890, 2018
DOI: 10.1246/cl.180298.

[13] Development of macromolecules and supramolecules based on silicon and arsenic chemistries,
Hiroaki Imoto, Polymer Journal, 50, 9, 837 – 846, 2018
DOI: 10.1038/s41428-018-0068-0.

[12] Peraryl Arsoles: Practical Synthesis, Electronic Structures, and Solid-State Emission Behaviors,
Hiroaki Imoto; Aya Urushizaki; Ikuo Kawashima; Kensuke Naka, Chem. Eur. J., 24, 35, 8797 – 8803, 2018
DOI: 10.1002/chem.201801589.

[11] Beads-on-String-Shaped Poly(azomethine) Applicable for Solution Processing of Bilayer Devices Using a Same Solvent,
Shunichi Fujii; Saori Minami; Kenji Urayama; Yu Suenaga; Hiroyoshi Naito; Orito Miyashita; Hiroaki Imoto; Kensuke Naka, ACS Macro Letters, 7, 641 – 645, 2018
DOI: 10.1021/acsmacrolett.8b00271.

[10] Substituent-Dependent Stimuli Recognition of Luminescent Gold(I) Chloride Complexes Based on Diarsenic Ligands,
Hiroaki Imoto; Shintaro Nishiyama; Kensuke Naka, Bull. Chem. Soc. Jpn., 91, 3, 349 – 354, 2018
DOI: 10.1246/bcsj.20170330.

[9] Self-association behavior of amphiphilic molecules based on incompletely condensed cage silsesquioxanes and poly(ethylene glycol)s,
Hiroaki Imoto; Ryoichi Katoh; Tomoko Honda; Shin-ichi Yusa; Kensuke Naka, Polymer Journal, 50, 4, 337 – 345, 2018
DOI: 10.1038/s41428-017-0021-7.

[8] Fabrication of Composite Films with Poly(methyl methacrylate) and Incompletely Condensed Cage-Silsesquioxane Fillers,
Sota Yuasa; Yuri Sato; Hiroaki Imoto; Kensuke Naka, Journal of Applied Polymer Science, 135, 12, 46033, 2018
DOI: 10.1002/app.46033.

[7] 3,4-Diaminomaleimide Dyes: Simple Luminophores with Efficient Orange-Red Emission in the Solid State,
Hiroaki Imoto; Ryosuke Fujii; Kensuke Naka, Eur. J. Org. Chem., 6, 837 – 843, 2018
DOI: 10.1002/ejoc.201701479.

2017

[6] Arsenic Halogenation of 9-Arsafluorene and Utilization for As−C Bond Formation Reaction,
Susumu Tanaka; Hiroaki Imoto; Takashi Yumura; Kensuke Naka, Organometallics, 36, 9, 1684 – 1687, 2017
DOI: 10.1021/acs.organomet.7b00198.

[5] Platinum(II) Dihalide Complexes with 9-Arsafluorenes: Effects of Ligand Modification on the Phosphorescent Properties,
Hiroaki Imoto; Hiroshi Sasaki; Susumu Tanaka; Takashi Yumura; Kensuke Naka, Organometallics, 36, 14, 2605 – 2611, 2017
DOI: 10.1021/acs.organomet.7b00233.

[4] POSS Solid Solutions Exhibiting Orientationally Disordered Phase Transition,
Satoshi Morimoto; Hiroaki Imoto; Kensuke Naka, Chem. Commun., 53, 66, 9273 – 9276, 2017
DOI: 10.1039/C7CC04443G.

[3] Control of Aurophilic Interaction: Conformations and Electronic Structures of One-Dimensional Supramolecular Architectures,
Hiroaki Imoto; Shintaro Nishiyama; Takashi Yumura; Seiji Watase; Kimihiro Matsukawa; Kensuke Naka, Dalton Trans., 46, 25, 8077 – 8082, 2017
DOI: 10.1039/C7DT01383C.

[2] Multi-Mode Emission Color Tuning of Dithieno[3,2-b:2′,3′-d]arsoles,
Hiroaki Imoto; Ikuo Kawashima; Chieko Yamazawa; Susumu Tanaka; Kensuke Naka, J. Mater. Chem. C, 5, 27, 6697 – 6703, 2017
DOI: 10.1039/C7TC01989K.

[1] Rh-Catalyzed Direct Arylation of a Polyhedral Oligomeric Silsesquioxane,
Hiroaki Imoto; Satoshi Wada; Kensuke Naka, Dalton Trans., 46, 19, 6168 – 6171, 2017
DOI: 10.1039/C7DT01106G.