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Yokoyama Souichi
横山　創一
Yokoyama Souichi
横山　創一
Institutional repository
The Institute of Scientific and Industrial Research, Assistant Professor
Institutional repository

Research History 6

  1. 2020/04 - Present
    Osaka University　The Institute of Scientific and Industrial Research Nanoscience and Nanotechnology Center　Assistant Professor

  2. 2017/06 - 2020/03
    Kochi University of Technology　School of Environmental Science and Engineering

  3. 2016/06 - 2017/06
    Massachusetts Institute of Technology

  4. 2016/04 - 2017/06
    日本学術振興会　特別研究員PD

  5. 2016/04 - 2017/06
    Nagoya University　Institute of Transformative Bio-Molecules

  6. 2015/10 - 2016/03
    Nagoya University　Research Center for Materials Science

Education 3

  1. 京都大学大学院　工学研究科　合成・生物化学専攻 博士後期課程

    2012/04 - 2015/09

  2. Kyoto Institute of Technology　Graduate School of Science and Technology

    2010/04 - 2012/03

  3. Kyoto Institute of Technology　School of Science and Technology　Undergraduate Program of Chemistry and Materials Technology

    2006/04 - 2010/03

Professional Memberships 3

  1. THE SOCIETY OF SYNTHETIC ORGANIC CHEMISTRY, JAPAN

  2. THE CHEMICAL SOCIETY OF JAPAN

  3. THE JAPANESE PHOTOCHEMISTRY ASSOCIATION

Research Areas 4

  1. Nanotechnology/Materials / Energy chemistry /

  2. Nanotechnology/Materials / Nanostructure chemistry /

  3. Nanotechnology/Materials / Structural/physical organic chemistry /

  4. Nanotechnology/Materials / Functional solid-state chemistry /

Awards 4

  1. ポスター賞

    横山 創一　第26回基礎有機化学討論会　2015/09

  2. Journal of Materials Chemistry A Presentation Prise (RSC賞)

    横山 創一　2014光化学討論会　2014/09

  3. 最優秀学生発表賞（ポスター）

    横山 創一　2014年光化学討論会　2014/09

  4. 学生講演賞

    横山 創一　日本化学会第94春年会　2014/03

Papers 36

  1. Effect of semifluoroalkyl substituents in the POSS on atomic oxygen exposure

    Kazuki Yukumatsu, Soichi Yokoyama, Aki Goto, Yugo Kimoto, Yutaka Ie

    Acta Astronautica　Vol. 225　p. 812-820　2024/12　Research paper (scientific journal)

  2. Periodically Twisted Molecular Wires Based on a Fused Unit for Efficient Intramolecular Hopping Transport.

    Ryo Asakawa, Soichi Yokoyama, Ryo Yamada, Seiya Maeda, Tatsuhiko Ohto, Hirokazu Tada, Yutaka Ie

    Journal of the American Chemical Society　2024/08/12　Research paper (scientific journal)

  3. Colorless Near-Infrared Absorbing Dyes Based on B-N Fused Donor-Acceptor-Donor π-Conjugated Molecules for Organic Phototransistors.

    Soichi Yokoyama, Sakura Utsunomiya, Takuji Seo, Akinori Saeki, Yutaka Ie

    Advanced science (Weinheim, Baden-Wurttemberg, Germany)　2024/06/14　Research paper (scientific journal)

  4. Highly electron-deficient 1-propyl-3,5-dinitropyridinium: evaluation of electron-accepting ability and application as an oxidative quencher for metal complexes.

    Akitaka Ito, Yasuyuki Kuroda, Kento Iwai, Soichi Yokoyama, Nagatoshi Nishiwaki

    RSC advances　Vol. 14　No. 9　p. 5846-5850　2024/02/14　Research paper (scientific journal)

  5. Fluorinated Dihydropentalene-1,4-Dione: A Strong Electron-Accepting Unit with Organic Semiconductor Characteristics.

    Soichi Yokoyama, Yutaka Ie

    Chemistry – A European Journal　Vol. 29　No. 17　2023/03/22　Research paper (scientific journal)

  6. A fused pi-extended molecule containing an electron-accepting naphthobisthiadiazole and its incorporation into a copolymer: synthesis, properties, and semiconducting performance

    Ryo Asakawa, Takuji Seo, Soichi Yokoyama, Yutaka Ie

    POLYMER JOURNAL　2022/10　Research paper (scientific journal)

  7. Bridging pico-to-nanonewtons with a ratiometric force probe for monitoring nanoscale polymer physics before damage.

    Ryota Kotani, Soichi Yokoyama, Shunpei Nobusue, Shigehiro Yamaguchi, Atsuhiro Osuka, Hiroshi Yabu, Shohei Saito

    Nature communications　Vol. 13　No. 1　p. 303-303　2022/01/13　Research paper (scientific journal)

  8. FeCl3-Promoted Facile Synthesis of Multiply Arylated Nicotinonitriles

    Kento Iwai, Haruka Yamauchi, Soichi Yokoyama, Nagatoshi Nishiwaki

    Synthesis　Vol. 54　No. 10　p. 2480-2486　2022/01　Research paper (scientific journal)

  9. Comparison of Substituting Ability of Nitronate versus Enolate for Direct Substitution of a Nitro Group

    Yusuke Mukaijo, Soichi Yokoyama, Nagatoshi Nishiwaki

    Molecules　Vol. 25　No. 9　p. 2048-2048　2020/04/28　Research paper (scientific journal)

    Publisher: MDPI AG

  10. Vapochromic Properties of Diethenylpyrrole with Naphthyl Tethers Induced by Formation of a Distorted Structure in the Solid State

    Crystal Growth & Design　2020/01/30　Research paper (scientific journal)

  11. Synthesis and intramolecular ring transformation of N,N′-dialkylated 2,6,9-triazabicyclo[3.3.1]nonadienes

    Yumi Nakaike, Yusuke Yoshida, Soichi Yokoyama, Akitaka Ito, Nagatoshi Nishiwaki

    Organic & Biomolecular Chemistry　Vol. 18　No. 44　p. 9109-9116　2020　Research paper (scientific journal)

    Publisher: Royal Society of Chemistry (RSC)

  12. Three Step Synthesis of Fully and Differently Arylated Pyridines

    Arita, M., Yokoyama, S., Asahara, H., Nishiwaki, N.

    European Journal of Organic Chemistry　Vol. 2020　No. 4　2020　Research paper (scientific journal)

  13. Non-electronic aromatic ring activation by simple steric repulsion between substituents in 1-methylquinolinium salt systems

    Iwai, K., Yokoyama, S., Asahara, H., Nishiwaki, N.

    Bulletin of the Chemical Society of Japan　Vol. 93　No. 1　2020　Research paper (scientific journal)

  14. Development of a safely handleable synthetic equivalent of cyanonitrile oxide by 1,3-dipolar cycloaddition of nitroacetonitrile

    Nishiwaki Nagatoshi, Kumegawa Yuta, Iwai Kento, Yokoyama Soichi

    CHEMICAL COMMUNICATIONS　Vol. 55　No. 55　p. 7903-7905　2019/07/14　Research paper (scientific journal)

  15. Facile Synthesis of Onychines

    Arita, M., Yokoyama, S., Asahara, H., Nishiwaki, N.

    Synthesis (Germany)　Vol. 51　No. 9　p. 2007-2013　2019/05　Research paper (scientific journal)

  16. Anion-Capture-Induced Fluorescence Enhancement of Bis(cyanostyryl)pyrrole Based on Restricted Access to a Conical Intersection

    Yokoyama, S., Ito, A., Asahara, H., Nishiwaki, N.

    Bulletin of the Chemical Society of Japan　Vol. 92　No. 11　2019　Research paper (scientific journal)

  17. Metal-Free O-Selective Direct Acylation of Amino Alcohols Through Pseudo-Intramolecular Process

    Yokoyama, S., Shibauchi, H., Asahara, H., Nishiwaki, N.

    European Journal of Organic Chemistry　2019　Research paper (scientific journal)

  18. A facile synthesis of oxiranes possessing three or four carbonyl groups

    Asahara, H., Kikuchi, S., Unno, Y., Yokoyama, S., Yoshioka, K., Tani, S., Umezu, K., Nishiwaki, N.

    Current Organic Chemistry　Vol. 23　No. 1　p. 97-102　2019　Research paper (scientific journal)

  19. Fluorescence Behavior of Bis(cyanostyryl)pyrrole Derivatives Depending on Substituent Position of Cyano Groups in Solution and in Solid State.

    Yokoyama S, Nishiwaki N

    The Journal of organic chemistry　2018/12　Research paper (scientific journal)

  20. Photoresponsive supramolecular self-assemblies at the liquid/solid interface

    Denis Frath, Soichi Yokoyama, Takashi Hirose, Kenji Matsuda

    Journal of Photochemistry and Photobiology C: Photochemistry Reviews　Vol. 34　p. 29-40　2018/03/01

    Publisher: Elsevier B.V.

  21. A direct synthesis of trisubstituted allenes from propargyl alcohols via oxaphosphetane intermediates

    Kento Iwai, Soichi Yokoyama, Haruyasu Asahara, Nagatoshi Nishiwaki

    Bulletin of the Chemical Society of Japan　Vol. 91　No. 3　p. 337-342　2018　Research paper (scientific journal)

    Publisher: Chemical Society of Japan

  22. Direct dihalo-alkoxylation of nitroalkenes leading to β,β-dihalo-β-nitroethyl alkyl ethers

    Feiyue Hao, Soichi Yokoyama, Nagatoshi Nishiwaki

    Organic and Biomolecular Chemistry　Vol. 16　No. 15　p. 2768-2775　2018　Research paper (scientific journal)

    Publisher: Royal Society of Chemistry

  23. Phosphine induced dimerization of propargyl alcohols leading to allyl propargyl ethers

    Kento Iwai, Soichi Yokoyama, Haruyasu Asahara, Nagatoshi Nishiwaki

    Journal of Oleo Science　Vol. 67　No. 6　p. 773-778　2018　Research paper (scientific journal)

    Publisher: Japan Oil Chemists Society

  24. Synthesis of functionalized 4-nitroanilines by ring transformation of dinitropyridone with enaminones

    Saki Naito, Soichi Yokoyama, Haruyasu Asahara, Nagatoshi Nishiwaki

    TETRAHEDRON LETTERS　Vol. 58　No. 50　p. 4699-4702　2017/12　Research paper (scientific journal)

  25. Flapping viscosity probe that shows polarity-independent ratiometric fluorescence

    Ryota Kotani, Hikaru Sotome, Hajime Okajima, Soichi Yokoyama, Yumi Nakaike, Akihiro Kashiwagi, Chigusa Mori, Yuki Nakada, Shigehiro Yamaguchi, Atsuhiro Osuka, Akira Sakamoto, Hiroshi Miyasaka, Shohei Saito

    JOURNAL OF MATERIALS CHEMISTRY C　Vol. 5　No. 21　p. 5248-5256　2017/06　Research paper (scientific journal)

  26. Aggregation of 4,8,12-Triazatriangulene Cation with Amphiphilic Side Chains: Emission Properties in Solution, in Aggregates, and in the Solid State

    Takashi Hirose, Kengo Sasatsuki, Hiromu Noguchi, Soichi Yokoyama, Kenji Matsuda

    CHEMISTRY LETTERS　Vol. 45　No. 9　p. 1090-1092　2016/09　Research paper (scientific journal)

  27. Rational Design of Highly Photoresponsive Surface-Confined Self-Assembly of Diarylethenes: Reversible Three-State Photoswitching at the Liquid/Solid Interface

    Naoki Maeda, Takashi Hirose, Soichi Yokoyama, Kenji Matsuda

    JOURNAL OF PHYSICAL CHEMISTRY C　Vol. 120　No. 17　p. 9317-9325　2016/05　Research paper (scientific journal)

  28. Fluorescence behavior of 2,6,10-trisubstituted 4,8,12-triazatriangulene cations in solution and in the solid state

    Hiromu Noguchi, Takashi Hirose, Soichi Yokoyama, Kenji Matsuda

    CRYSTENGCOMM　Vol. 18　No. 38　p. 7377-7383　2016　Research paper (scientific journal)

  29. Photochemical Cleavage of Axial Group Attached to the Central Carbon Atom of Triangulene Leuco Derivatives at the Ethanol/Au(111) Substrate

    Soichi Yokoyama, Takashi Hirose, Kenji Matsuda

    CHEMISTRY LETTERS　Vol. 44　No. 11　p. 1616-1618　2015/11　Research paper (scientific journal)

  30. Effects of Alkyl Chain Length and Hydrogen Bonds on the Cooperative Self-Assembly of 2-Thienyl-Type Diarylethenes at a Liquid/Highly Oriented Pyrolytic Graphite (HOPG) Interface

    Soichi Yokoyama, Takashi Hirose, Kenji Matsuda

    CHEMISTRY-A EUROPEAN JOURNAL　Vol. 21　No. 39　p. 13569-13576　2015/09　Research paper (scientific journal)

  31. Diarylethene Self-Assembled Monolayers: Cocrystallization and Mixing-Induced Cooperativity Highlighted by Scanning Tunneling Microscopy at the Liquid/Solid Interface

    Denis Frath, Takeshi Sakano, Yohei Imaizumi, Soichi Yokoyama, Takashi Hirose, Kenji Matsuda

    CHEMISTRY-A EUROPEAN JOURNAL　Vol. 21　No. 32　p. 11350-+　2015/08　Research paper (scientific journal)

  32. Photoinduced Four-State Three-Step Ordering Transformation of Photochromic Terthiophene at a Liquid/Solid Interface Based on Two Principles: Photochromism and Polymorphism

    Soichi Yokoyama, Takashi Hirose, Kenji Matsuda

    LANGMUIR　Vol. 31　No. 23　p. 6404-6414　2015/06　Research paper (scientific journal)

  33. Photochemical Cleavage of the Axial Group Attached to the Central Carbon Atom of Triazatriangulene

    Soichi Yokoyama, Takashi Hirose, Kenji Matsuda

    CHEMISTRY LETTERS　Vol. 44　No. 1　p. 76-78　2015/01　Research paper (scientific journal)

  34. Phototriggered formation and disappearance of surface-confined self-assembly composed of photochromic 2-thienyl-type diarylethene: a cooperative model at the liquid/solid interface

    Soichi Yokoyama, Takashi Hirose, Kenji Matsuda

    CHEMICAL COMMUNICATIONS　Vol. 50　No. 45　p. 5964-5966　2014　Research paper (scientific journal)

  35. Synthesis and Their Surface Properties of Gemini Type Perfluoroalkylated Azo Dye Amphiphiles Having Glycine Structures as Hydrophilic Group

    Vol. 30　No. 4　p. 125-133　2012　Research paper (scientific journal)

    Publisher:

  36. Synthesis and Their Surface Properties of Perfluoroalkylated Azo Dye Type Amphiphiles Having N-Methyl-glycine Structures as Hydrophilic Group

    Tokuzo Kawase, Takako Miyake, Takuya Usui, Soichi Yokoyama, Tatsuo Oida

    Material Technology　Vol. 29　No. 2　p. 79-86　2011　Research paper (scientific journal)

    Publisher:

Misc. 3

  1. Cooperative self-assembly of photochromie diarylethenes at liquid/solid interface and highly sensitive photoinduced transformation of the ordering

    Matsuda, K., Hirose, T., Yokoyama, S., Frath, D.

    Photon-Working Switches　2017/06

    Publisher: Photon-Working Switches

  2. Highly Sensitive Photoresponsive System Using Cooperative Assembly at Solid/Liquid interface

    Vol. 66　No. 7　p. 493-496　2015/07

    Publisher: 小峰工業出版

  3. 固液界面での協同的組織化を用いた高感度光配列制御

    横山 創一, 廣瀬崇至, 松田建児

    化学工業　Vol. 66　No. 7　p. 17-20　2015

Institutional Repository 1

Content Published in the University of Osaka Institutional Repository (OUKA)

  1. Colorless Near-Infrared Absorbing Dyes Based on B-N Fused Donor-Acceptor-Donor π-Conjugated Molecules for Organic Phototransistors

    Yokoyama Soichi, Utsunomiya Sakura, Seo Takuji, Saeki Akinori, Ie Yutaka

    Advanced Science　Vol. 11　No. 31　2024/06/14