写真a

KATAGIRI Kosuke

Position

Professor

Research Field

Nanotechnology/Materials / Structural organic chemistry and physical organic chemistry, Nanotechnology/Materials / Synthetic organic chemistry, Nanotechnology/Materials / Inorganic/coordination chemistry, Nanotechnology/Materials / Organic functional materials

Homepage URL

http://www.chem.konan-u.ac.jp/STOC/

Mail Address

E-mail address

External Link

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Graduating School 【 display / non-display 】

  • 千葉大学大学院   自然科学研究科   物質科学専攻   Graduated

    - 2005

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  • Chiba University   Faculty of Science   Graduated

    1996.4 - 2000.3

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Graduate School 【 display / non-display 】

  • Chiba University   Graduate School, Division of Science and Technology   Doctor's Course   Completed

    - 2005.3

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Campus Career 【 display / non-display 】

  • KONAN UNIVERSITY   Faculty of Science and Engineering   Faculty of Science and Engineering Department of Chemistry of Functional Molecules   Professor

    2023.4

  • KONAN UNIVERSITY   Faculty of Science and Engineering   Faculty of Science and Engineering Department of Chemistry of Functional Molecules   Associate Professor

    2018.4 - 2023.3

  • KONAN UNIVERSITY   Faculty of Science and Engineering   Faculty of Science and Engineering Department of Chemistry of Functional Molecules   Assistant Professor

    2014.4 - 2018.3

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External Career 【 display / non-display 】

  • 徳島文理大学   香川薬学部

    2005.4 - 2014.3

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    Country：Japan

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Professional Memberships 【 display / non-display 】

  • THE RARE EARTH SOCIETY OF JAPAN

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  • American Chemical Society

    2020

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Research Career 【 display / non-display 】

  • synthesis of supramolecular compounds with triarylphosphine oxide moiety

    Project Year： 2014.4  -   

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    Oxaphosphacyclophanes, a bis(triphenylphosphine oxide) moiety linked by dioxypropane, dioxybutane, dioxypentane, and dioxyhexane, were synthesized from the reaction of bis(4-hydroxyphenyl)phenylphosphine oxide and dibromoalkanes. Single-crystal X-ray diffraction analysis and exploring intermolecular interactions by using the Hirshfeld surface revealed that the butylene-linked oxaphosphacyclophane (2) had a one-dimensional (1D) supramolecular structure via CH/π interactions between the terminal phenyl group of 2 and a phenylene group of the cavities. In the packing diagram of pentylene-linked oxaphosphacyclophane (3) with antiform, one macrocycle recognized two terminal phenyl groups to form a 1D supramolecular chain via π/π interactions. The syn-form of 3 was obtained by the recrystallization from toluene and CHCl3. In this crystal, a toluene molecule avoid construction of a 1D chain. The antiform of hexylene-linked oxaphosphacyclophane 4 was obtained by the recrystallization from cyclohexane and CHCl3. Cyclohexane was captured in the cavity via CH/π interactions. Two molecules of 4 with the syn-form recognized each other to construct a dimeric structure via CH/π interactions.

  • Synthesis and Property of pseudorotaxane to form supramolecular polymer with phosphorus

    Project Year： 2016.4  -   

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    Pseudorotaxanes have attracted attention as intriguing building blocks for the construction of stimuli-responsive supramolecular materials. One of the primary goals of our laboratory is the development of synthetic supramolecular compounds containing phosphorous atoms. Herein, we report the design and synthesis of simple [2]pseudorotaxanes containing phosphonium salts. Dual-cation axle molecules were synthesized from a dialkylammonium cation, as a recognition site for 24-crown-8 (24C8) or dibenzo-24-crown-8 (DB24C8), and an alkyltriphenylphosphonium cation; these were used to obtain [2]pseudorotaxanes in a 1:1 ratio with 24C8 and DB24C8. The formation of [2]pseudorotaxanes with crown ethers positioned at ammonium cations on the axle compounds was confirmed by nuclear magnetic resonance (NMR) and X-ray crystallography, revealing that the CH/π interaction between phenyl group of alkyltriphenylphosphonium and that of DB24C8 increases the stability of a [2]pseudorotaxane.

  • Preparation and luminescence property of lanthanide porous coordination polymer

    Project Year： 2014.4  -   

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    Europium(III)–phosphine oxide porous coordination polymers (Eu–PCPs) constructed from Eu(OTf)3 and tris(4-(4′-carboxylphenyl)phenyl)phosphine oxide as ligands are reported. X-Ray diffraction data of Eu–PCPs are collected at 273 K with synchrotron radiation. The europium complex is shown to crystallize in the centrosymmetric orthorhombic space group Pcca. The Eu atom is surrounded by eight neighboring oxygen atoms from six ligands and a coordinated DMF molecule. Furthermore, the two Eu centers are quadruply bridged by four carboxylates. They exhibit an infinite three-dimensional structure that incorporates an open pore structure, which is thermally robust and has an N2 Brunauer–Emmett–Teller surface area of 58.5 m2 g−1 and a micropore volume of 0.756 cm3 g−1. Excitation of the materials led to five sharp emission peaks arising from the 5D0 → 7FJ transitions (J = 0, 1, 2, 3 and 4). The absolute quantum yield of Eu–PCPs is determined as 22% at room temperature. In addition, exposure of single crystals of Eu–PCPs to H2O vapor causes attenuation of the luminescence intensity. This process involves a single-crystal-to-single-crystal transformation. In the crystal structures of the Eu–PCPs, the ligand exchange from DMF to H2O, which acts to quench the lanthanide luminescence, is directly observed.

  • Relationship between polymorphism and luminescence property

    Project Year： 2014.4  -   

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    Anthracenyl(diphenyl)phosphine oxide and dianthracenylphenylphosphine oxide as photoactive compounds have been synthesized. Anthracenyl group of these compounds indicate the multi-functional roles such as an emission component, a photodimerization component, and a leaving group. When the light irradiation was performed under an oxygen atmosphere, photo-oxidative Psingle bondC bond cleavage to leave the antharacenyl group was observed. Moreover, phosphonyl radical was produced and then Psingle bondP bond formation to form diphosphane was observed.

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Papers 【 display / non-display 】

  • Conformational Properties of Aromatic Amides Bearing Imidazole Ring and Acid-Induced Trans–Cis Amide Switching

    Chiharu Takubo, Sakiko Kimura, Mami Ichinomiya, Arisa Hayakawa, Mako Murata, Ko Urushibara, Hyuma Masu, Kosuke Katagiri, Masatoshi Kawahata, Mayumi Kudo, Isao Azumaya, Hiroyuki Kagechika, Aya Tanatani

    The Journal of Organic Chemistry   2022.9

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  • Investigating the synthesis and structure of [2]pseudorotaxanes assembled by crown ether as wheel component and dual-cation axle with phosphonium and ammonium cations

    Naoki Fujimoto, Koshiro Isono, Kosuke Katagiri

    Journal of Molecular Structure   1259   132721 - 132721   2022.7

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    Publisher：Elsevier {BV}  

    DOI： 10.1016/j.molstruc.2022.132721

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  • Crystal structures and solution behavior of cis-di(aqua)bis(2,2 '-bipyridine)cobalt(III) and related complexes

    Mari Toyama, Yu Yamamoto, Takuya Yoshimoto, Kosuke Katagiri

    JOURNAL OF MOLECULAR STRUCTURE   1244   2021.11

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    Publisher：ELSEVIER  

    A cobalt(III) complex bearing two 2,2'-bipyridine (bpy) ligands and two aqua ligands, cis-[Co(bpy)(2)(OH2)(2)][OTf](3)center dot H2O (1 center dot[OTf](3)center dot H2O; OTf- = CF3SO3-), was obtained from the reaction of [Co(bpy)(2)(CO3)][OTf]center dot 0.5H(2)O with aqueous HOTf (HOTf = HCF3SO3, trifluoromethanesulfonic acid). The prepared complex was characterized by single-crystal X-ray crystallographic and elemental analyses, and its solution behavior was investigated by H-1 NMR spectroscopy. Our study of 1 center dot[OTf](3)center dot H2O revealed that it is stable in water and acetone upon heating; however, in methanol and ethanol, the complex was unstable upon heating, forming [Co(bpy)(3)](3+). In addition, upon the reaction of 1 center dot[OTf](3)center dot H2O with picolinic acid (Hpic) in acetone at 295 K, [Co(bpy)(2)(pic)][OTf](2) (2 center dot[OTf](2)) was gradually and selectively precipitated from the reaction solution in 82% yield. Moreover, the reaction between 1 center dot[OTf](3)center dot H2O, NaOH, and H2O2 in water at room temperature produced the dinuclear complex [Co-2(bpy)(4)(mu-O-2)(mu-OH)][PF6](3) (3 center dot[PF6](3)) in good yield (92%) and with excellent purity. The structures of 1 center dot[OTf](3)center dot H2O and 2 center dot[PF6](2) were determined by single-crystal X-ray crystallographic analysis. (C) 2021 Elsevier B.V. All rights reserved.

    DOI： 10.1016/j.molstruc.2021.130938

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  • Accessing Improbable Foldamer Shapes with Strained Macrocycles

    Ko Urushibara, Yann Ferrand, Zhiwei Liu, Kosuke Katagiri, Masatoshi Kawahata, Estelle Morvan, Ryan D'Elia, Vojislava Pophristic, Aya Tanatani, Ivan Huc

    Chemistry – A European Journal   27 ( 43 )   11205 - 11215   2021.8

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  • Construction of Aromatic Multilayered Structures Based on the Conformational Properties of N,N’-Dimethylated Squaramide

    Maiko Arimura, Kimiko Tanaka, Midori Kanda, Ko Urushibara, Shinya Fujii, Kosuke Katagiri, Isao Azumaya, Hiroyuki Kagechika, Aya Tanatani

    ChemPlusChem   86 ( 1 )   198 - 205   2021.1

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    Publisher：Wiley  

    © 2021 Wiley-VCH GmbH Squaramide is a highly rigid four-membered ring system bearing two carbonyl and two amino groups, and its derivatives have found applications in many fields. We synthesized several N,N’-dimethylated oligosquaramides linked via phenyl groups, and investigated their structures in the crystalline state and in solution. Compounds 1, 2 (bissquaramides), and 13 (trissquaramide) exist as folded structures in the crystalline state, in which the aromatic rings are located in a face-to-face position. In their multilayered structures, the benzene rings are more nearly parallel and are closer to each other, compared with those in N,N’-dimethylated oligoureas. Individual molecules of meta-connected compounds 2 and 13 show a helical structure with all-R or all-S axis chirality, but afford only racemic crystals. The NMR spectra indicated that these compounds retain well-ordered folded structures in solution. The unique steric and electronic properties of N,N’-dimethylated squaramide can provide access to novel functional aromatic multilayered and helical foldamers.

    DOI： 10.1002/cplu.202000678

    PubMed

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Review Papers (Misc) 【 display / non-display 】

  • 超分子相互作用による有機結晶の構造制御

    片桐幸輔

    化学と工業   69 ( 9 )   744 - 745   2016.9

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    Authorship：Lead author   Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings)   Publisher：日本化学会  

  • Synthesis and Structure of Silver(I) Coordination Polymers with Bis(pyridyl) Ligands Linked by an Aromatic Sulfonamide

    Kosuke Katagiri

    134 ( 9 )   939 - 947   2014.5

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    Authorship：Lead author   Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings)   Publisher：The Pharmaceutical Society of Japan  

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Academic Awards Received 【 display / non-display 】

  • 日本薬学会中国四国支部奨励賞

    2013.10   日本薬学会中国四国支部  

    片桐幸輔

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Other External funds procured 【 display / non-display 】

  • 希土類配位高分子材料の発光挙動機構解明

    2022.4 - 2023.3

    公益財団法人木下記念事業団  公益財団法人木下記念事業団学術研究活動助成 

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    Authorship：principal_investigator 

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Preferred joint research theme 【 display / non-display 】

  • 結晶多形と発光挙動相関

  • 希土類多孔性配位高分子の発光色制御

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Committee Memberships 【 display / non-display 】

  • 2022.4 - 2024.3   日本化学会近畿支部  幹事

  • 2020.5 - 2021.3   日本化学会  第１０２春季年会　講演企画小委員会

  • 2018.5 - 2019.3   日本化学会  第９９春季年会　講演企画小委員会

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