Original Papers
Original Papers
37. "Randomly Alkylated POSS as Atomic Oxygen-Protective Coating Materials for Low Earth Orbit Satellites"
K. Yukumatsu, S. Yokoyama, A. Goto, Y. Kimoto, Y. Ie
ACS Appl. Nano Mater. 2025, 8, 22985–22992. (doi/10.1021/acsanm.5c03925)
36. "Annelated vs. Non-Annelated Hopping Sites in Periodically Twisted Molecular Wires"
R. Asakawa, S. Yokoyama, R. Yamada, T. Ohto, H. Tada, Y. Ie
Bull. Chem. Soc. Jpn. 2024, 98, uoae146. (doi.org/10.1093/bulcsj/uoae146)
35. "Effect of Semifluoroalkyl Substituents in the POSS on Atomic Oxygen Exposure"
K. Yukumatsu, S. Yokoyama, A. Goto, Y. Kimoto, Y. Ie
Acta Astronaut. 2024, 225, 812-820. (doi.org/10.1016/j.actaastro.2024.09.060)
34. "Periodically Twisted Molecular Wires Based on a Fused Unit for Efficient Intramolecular Hopping Transport"
R. Asakawa, S. Yokoyama, R. Yamada, S. Maeda, T. Ohto, H. Tada, Y. Ie
J. Am. Chem. Soc. 2024, 146, 23529-23536. (doi.org/10.1021/jacs.4c07548)
33. "Colorless Near-Infrared Absorbing Dyes Based on B-N Fused Donor-Acceptor-Donor 𝝅-Conjugated Molecules for Organic Phototransistors"
S. Yokoyama, S. Utsunomiya, T. Seo, A. Saeki, Y. Ie
Adv. Sci. 2024, 2405656. (doi.org/10.1002/advs.202405656)
32. "Highly Electron-deficient 1-Propyl-3,5-Dinitropyridinium: Evaluation of Electron-accepting Ability and Application as an Oxidative Quencher for Metal Complexes"
A. Ito, Y. Kuroda, K. Iwai, S. Yokoyama, N. Nishiwaki
RSC Adv. 2024, 14, 5846-5850 (doi.org/10.1039/d4ra00845f)
31. "A Fused π-Extended Molecule Containing an Electron-accepting Naphthobisthiadiazole and its Incorporation into a Copolymer: Synthesis, Properties, and Semiconducting Performance"
R. Asakawa, T. Seo, S. Yokoyama, Y. Ie
Polym. J. 2023, 55, 451-461. (doi.org/10.1038/s41428-022-00716-x)
30. "Fluorinated Dihydropentalene-1,4-Dione: A Strong Electron-Accepting Unit with Organic Semiconductor Characteristics"
S. Yokoyama, Y. Ie
Chem. Eur. J. 2023, 29, e202203873. (doi.org/10.1002/chem.202203873)
(Selected as Hot Paper & Front Cover)
29. "Bridging pico-to-nanonewtons with a Ratiometric Force Probe for Monitoring Nanoscale Polymer Physics Before Damage"
R. Kotani, S. Yokoyama, S. Nobusue, S. Yamaguchi, A. Osuka, H. Yabu, S. Saito
Nat. Commun. 2022, 13, 303-303. (doi.org/10.1038/s41467-022-27972-y)
28. "FeCl3-Promoted Facile Synthesis of Multiply Arylated Nicotinonitriles"
K. Iwai, H. Yamauchi, S. Yokoyama, N. Nishiwaki
Synthesis 2022, 54, 2480-2486. (doi.org/10.1055/a-1731-9464)
27. "Comparison of Substituting Ability of Nitronate versus Enolate for Direct Substitution of a Nitro Group"
Y. Mukaijo, S. Yokoyama, N. Nishiwaki
Molecules 2020, 25, 2048-2048. (doi.org/10.3390/molecules25092048)
26. “Vapochromic Properties of Diethenylpyrrole with Naphthyl Tethers Induced by Formation of Distorted Structure at the Solid State”
S. Yokoyama, H. Asahara, N. Nishiwaki
Cryst. Growth. Des. 2020, 20, 1383−1387 (doi.org/10.1021/acs.cgd.9b01596)
(Selected as Supplementary Cover).
25. “Three Step Synthesis of Fully and Differently Arylated Pyridines”
M. Arita, S. Yokoyama, H. Asahara, N. Nishiwaki
Eur. J. Org. Chem. 2020, 466−474 (doi.org/10.1002/ejoc.201901663)
(Selected as a Noteworthy in ChemistryView).
24. “Non-electronic Activation of Aromatic Ring by Simple Steric Repulsion between Substituents in 1-Methylquinolinium Salt Systems”
K. Iwai, S. Yokoyama, H. Asahara, N. Nishiwaki
Bull. Chem. Soc. Jpn. 2020, 93, 50−57. (doi.org/10.1246/bcsj.20190263)
23. "Synthesis and Intramolecular Ring Transformation of N,N′-dialkylated 2,6,9-Triazabicyclo[3.3.1]nonadienes"
Y. Nakaike, Y. Yoshida, S. Yokoyama, A. Ito, N. Nishiwaki
Org. Biomol. Chem. 2020, 18, 9109-9116. (doi.org/10.1039/D0OB01950J)
22. “Anion-Capture-Induce Fluorescence Enhancement of Bis(cyanostyryl)pyrrole Based on a Concept of Restricted Access to Conical Intersection”
S. Yokoyama, A. Ito, H. Asahara, N. Nishiwaki
Bull. Chem. Soc. Jpn. 2019, 92, 1807−1815. (doi.org/10.1246/bcsj.20190196)
(Selected Paer)
21. “Development of Safely Handleable Synthetic Equivalent of Cyanonitrile Oxide –1,3-Dipolar Cycloaddition of Nitroacetonitrile”
N. Nishiwaki, Y. Kumegawa, K. Iwai, S. Yokoyama
Chem. Commun. 2019, 55, 7903−7905. (doi.org/10.1039/C9CC03875B)
(Selected as Inside Front Cover)
20. “A Facile Synthesis of Oxiranes Possessing Three or Four Carbonyl Groups”
H. Asahara, S. Kikuchi, Y. Unno, S. Yokoyama, K. Yoshioka, S. Tani, K. Umezu, N. Nishiwaki
Curr. Org. Chem. 2019, 23, 97−102. (10.2174/1385272823666190112103813)
19. “Metal-Free O-Selective Direct Acylation of Amino Alcohols via Pseudo-Intramolecular Process”
S. Yokoyama, H. Shibauchi, H. Asahara, N. Nishiwaki
Eur. J. Org. Chem. 2019, 1125−1133. (doi.org/10.1002/ejoc.201801589)
18. “Fluorescence Behavior of Bis(cyanostyryl)pyrrole Derivatives Depending on Substituent Position of Cyano Groups in Solution and in Solid State”
S. Yokoyama, N. Nagatoshi
J. Org. Chem. 2019, 84, 1192−1200. (doi.org/10.1021/acs.joc.8b02517)
17. “Facile Synthesis of Onychines”
M. Arita, S. Yokoyama, H. Asahara, N. Nishiwaki
Synthesis 2019, 51, 2007−2013. (10.1055/s-0037-1612058)
16. “Direct Dihalo-Alkoxylation of Nitroalkenes Leading to ß,ß-Dihalo-ß-nitroethyl Alkyl Ethers”
H. Feiyue, S. Yokoyama, N. Nishiwaki
Org. Biomol. Chem. 2018, 16, 2768−2775. (doi.org/10.1039/C8OB00408K)
15. “Phosphine Induced Dimerization of Propargyl Alcohols Leading to Allyl Propargyl Ethers”
K. Iwai, S. Yokoyama, H. Asahara, N. Nishiwaki
J. Oleo. Sci. 2018, 67, 773−778. (doi: 10.5650/jos.ess17277)
14. “A Direct Synthesis of Trisubstituted Allenes from Propargyl Alcohols via Oxaphosphetane Intermediates”
K. Iwai, S. Yokoyama, H. Asahara, N. Nishiwaki
Bull. Chem. Soc. Jpn. 2018, 91, 337−342. (doi.org/10.1246/bcsj.20170372)
13. “Synthesis of Functionalized 4-Nitroanilines by Ring Transformation of Dinitropyridone with Enaminones”
S. Naito, S. Yokoyama, H. Asahara, N. Nishiwaki
Tetrahedron Lett. 2017, 58, 4699−4702. (doi.org/10.1016/j.tetlet.2017.11.003)
12. “Flapping Viscosity Probe that Shows Polarity-independent Ratiometric Fluorescence”
R. Kotani, H. Sotome, H. Okajima, S. Yokoyama, Y. Nakaike, A. Kashiwagi, C. Mori, Y. Nakada, S. Yamaguchi. A. Osuka, A. Sakamoto, H. Miyasaka, S. Saito
J. Mater. Chem. C 2017, 5, 5248−5256. (doi.org/10.1039/C7TC01533J)
11. “Fluorescence Behavior of 2,6,10‐Trisubstituted 4,8,12‐triazatriangulene Cations in Solution and in the Solid State”
H. Noguchi, T. Hirose, S. Yokoyama, K. Matsuda
CrystEngComm 2016, 18, 7377−7383. (doi.org/10.1039/C6CE00703A)
10. “Aggregation of 4,8,12-Triazatriangulene Cation with Amphiphilic Side Chains: Emission Properties in Solution, in Aggregates, and in the Solid State”
T. Hirose, K. Sasatsuki, H. Noguchi, S. Yokoyama, K. Matsuda
Chem. Lett. 2016, 45, 1090−1092. (doi.org/10.1246/cl.160453)
9. “Rational Design of Highly Photoresponsive Surface-Confined Self-Assembly of Diarylethenes: Reversible Three-State Photoswitching at the Liquid/Solid Interface”
N. Maeda, T. Hirose, S. Yokoyama, K. Matsuda
J. Phys. Chem. C 2016, 120, 9317−9325. (doi.org/10.1021/acs.jpcc.6b02115)
8. “Photochemical Cleavage of Axial Group Attached to the Central Carbon Atom of Triangulene Leuco Derivatives at the Ethanol/Au(111) Substrate”
S. Yokoyama, T. Hirose, K. Matsuda
Chem. Lett. 2015, 44, 1616−1618. (doi.org/10.1246/cl.150738)
7. “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”
S. Yokoyama, T. Hirose, K. Matsuda
Chem. Eur. J. 2015, 21, 13569−13576. (doi.org/10.1002/chem.201500707)
(Selected as a front cover and hot paper)
6. “Photoinduced Four-State Three-Step Ordering Transformation of Photochromic Terthiophene at a Liquid/Solid Interface Based on Two Principles: Photochromism and Polymorphism”
S. Yokoyama, T. Hirose, K. Matsuda
Langmuir 2015, 31, 6404−6414. (doi.org/10.1021/acs.langmuir.5b01404)
5. “Diarylethene Self-Assembled Monolayers: Cocrystallization and Mixing-Induced Cooperativity Highlighted by Scanning Tunneling Microscopy at the Liquid/Solid Interface”
D. Frath, T. Sakano, Y. Imaizumi, S. Yokoyama, T. Hirose, K. Matsuda
Chem. Eur. J. 2015, 21, 11350−11358. (doi.org/10.1002/chem.201500804)
4. “Photochemical Cleavage of Axial Group Attached to the Central Carbon Atom of Triazatriangulene"
S. Yokoyama, T. Hirose, K. Matsuda
Chem. Lett. 2015, 44, 76−78. (doi.org/10.1246/cl.140897)
3. “Phototriggered Formation and Disappearance of Surface-Confined Self-assembly Composed of Photochromic 2-Thienyl-Type Diarylethene: A Cooperative Model at the Liquid/Solid interface”
S. Yokoyama, T. Hirose, K. Matsuda
Chem. Commun. 2014, 50, 5964−5966. (doi.org/10.1039/C3CC48895K)
(Selected as a Back cover)
2. “Synthesis and Their Surface Properties of Gemini Type Perfluoroalkylated Azo Dye Amphiphiles Having Glycine Structures as Hydrophilic Group”
T. Kawase, T. Usui, T. Miyake, S. Yokoyama
Material Technology 2012, 30, 125−133. (in Japanese)
1. “Synthesis and Their Surface Properties of Perfluoroalkylated Azo Dye Type Amphiphiles Having N-Methyl-glycine Structures as Hydrophilic Group”
T. Kawase, T. Miyake, T. Usui, S. Yokoyama, T. Oida
Material Technology 2011, 29, 79−86. (in Japanese)
3. “Photoresponsive supramolecular self-assemblies at the liquid/solid interface”
Frath, D.; Yokoyama, S.; Hirose, T.; Matsuda, K.
J. Photochem. Photobiol. C: Photochem. Rev., 2018, 34, 29−40.
2. “Cooperative Self-Assembly of Photochromic Diarylethenes at Liquid/Solid Interface and Highly Sensitive Photoinduced Transformation of the Ordering”
Matsuda, K.; Hirose, T.; Yokoyama, S.; Frath, D.
Photon-Working Switches, Springer, 2017,409−419.
1. "固液界面での協同的組織化を用いた高感度光配列制御 (特集 最先端光化学研究の展望) "
横山 創一, 廣瀬 崇至, 松田 建児
化學工業, 2015, 66, 493-496 2015年7月
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