Misaki Yohji

Update date：2025/01/25

Professor

Misaki Yohji

Birth:1960
My website is here.

Education

Kyoto University1984
Kyoto University1984
Kyoto University1986
Kyoto University1986
Kyoto University1989
Kyoto University1989

Degree

工学博士京都大学

Research Areas

Research Interests

多段階酸化還元系
有機導体
π電子供与体
テトラチアペンタレン(TTP)
有機二次電池
ラジアレン・デンドラレン
TTFオリゴマー

Research Projects

Development of purely organic single-component conductors基盤研究(C)Principal investigator
テトラチアペンタレン系導体における結晶構造・物性制御と超伝導化特定領域研究Principal investigator
カルコゲン原子を利用した多電子酸化還元系の創出と高機能性二次電池への展開新学術領域研究(研究領域提案型)Principal investigator
有機活物質を用いた電池に関する研究共同研究2023/10-2024/09Coinvestigator(s)
両極性有機分子を用いた次世代二次電池材料の創出基盤研究(B)2019/04/01-2023/03/31Principal investigator

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Books and Other Publications

Functional Materials―Advances and Applications in Energy Storage and ConversionYohji MisakiChapter 4. Organic BatteriesJenny Stanford Publishing2018/12/129789814800099

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Papers

Molecular Conductors Based on Dimethylcyclohexene-Fused Tetrathiafulvalene2024/11/25Masahiro Fujisaki, Ryoya Naito, Takashi Shirahata, Yoshitaka Kawasugi, Naoya Tajima, Yohji MisakiChemistry6/ 6, 1509-1522Research paper (scientific journal)10.3390/chemistry6060091Chiral electroactive materials have attracted attention for the effects of electrical magnetochiral anisotropy (eMChA) and chirality-induced spin selectivity (CISS). The combination of tetrathiafulvalene (TTF) with chiral moieties is one way to access chiral electroactive materials. In this paper, we have focused on the fused 2,3-dimethylcyclohexene (DMCh) ring as a substituent with chiral carbon atoms and without heteroatoms, which has not been used in the field of molecular conductors, and we synthesized a new TTF derivative (rac-DMCh-EDT-TTF). We have developed novel molecular conductors (rac-DMCh-EDT-TTF)2X (X− = PF6−, AsF6− and ClO4−), which have bilayer conducting sheets composed of the two crystallographically independent molecules. All salts exhibited semiconducting behavior from room temperature down to low temperatures, and a resistivity anomaly was observed at 180–250 K. X-ray structure analysis at 100 K and 263 K and molecular orbital calculations using the results of X-ray structure analysis indicated the emergence of a charge disproportionation between Layers 1 and 2 at the low-temperature phase.
The Synthesis of Unsymmetrical Arylated Tetrathiafulvalenes Extended with an Anthraquinoid Spacer via Pd-Catalyzed C–H Arylation2024/10/10Aya Yoshimura, Yohji Misaki, Yuto Aso, Ryosuke Utsumi, Fuma TosaSynlettResearch paper (scientific journal)10.1055/a-2416-2206We synthesized diarylated 10-(1,3-dithiol-2-ylidene)anthracene-9-(10H)-one derivatives, which serve as important precursors of unsymmetrical arylated TTFAQs, via the palladium-catalyzed direct C–H arylation. Unsymmetrical diarylated TTFAQs were synthesized by the Horner–Wadsworth–Emmons reaction using diarylated 10-(1,3-dithiol-2-ylidene)anthracene-9-(10H)-one as the starting materials. Additionally, we have successfully synthesized unsymmetrical tetraarylated TTFAQs by a second palladium-catalyzed C–H arylation of diarylated TTFAQs.
Cation-Independent Anion Battery Using Organic Cathodes Utilizing a Triphenylamine Moiety for In-Cell Electropolymerization2024/06/24Hikaru Sano, Aya Yoshimura, Lei Zhang, Haruki Ebisawa, Takeshi Kiyokawa, Koichi Fujita, Yohji Misaki, Masaru YaoACS Applied Polymer Materials6/ 13, 7542-7550Research paper (scientific journal)10.1021/acsapm.4c00973
Synthesis and properties of 1,3-dithiole[6]dendralene analogs with two thiophene spacers inserted2024/05/30Tomoya Misaki, Masataka Nishiwaki, Toshiki Ito, Masafumi Ueda, Masahiro Fujisaki, Aya Yoshimura, Takashi Shirahata, Minoru Hayashi, Yohji MisakiChemistry Letters53/ 6, upae104/1-upae104/5Research paper (scientific journal)10.1093/chemle/upae104Oxford University Press (OUP)Derivatives of a 1,3-dithiole[6]dendralene analog with two thiophene spacers inserted (2) have been successfully synthesized. Cyclic voltammetry and spectroelectrochemistry revealed that their redox behavior, based on the distribution of the positive charges, differed depending on the position and the electronic effect of substituents on the 1,3-dithiole rings.
Synthesis, Structures, Electrochemical and Optical Properties of Vinyl-Extended Tetrathiafulvalene Derivatives Functionalized with Two 2,6-Dicyano-λ5-Phosphinine Units2024/03/14Tomoya Misaki, Aya Yoshimura, Takashi Shirahata, Minoru Hayashi, Yohji Misaki, Daisuke Sakamaki, Hideki FujiwaraEuropean Journal of Organic Chemistry27/ 13, e202400088/1- e202400088/8Research paper (scientific journal)

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Presentations

メチルシクロヘキセンが縮環した TTF 系ドナーの合成と分子性導体への展開第17回有機π電子系シンポジウム2024/12/13Poster presentation
ビニル拡張された1,3-ジチオール[4]デンドラレン類縁体の合成と性質第17回有機π電子系シンポジウム2024/12/13Poster presentation
1,3-ジチオール[5]ラジアレン類縁体の構造と酸化還元挙動第17回有機π電子系シンポジウム2024/12/13Poster presentation
ベンゼン環をスペーサーとした1,3-ジチオール[4]デンドラレンの合成と性質第17回有機π電子系シンポジウム2024/12/13Poster presentation
ビニル位で酸化重合するテトラチアフルバレン類縁体の合成と二次電池正極活物質への展開第51回有機典型元素化学討論会2024/12/06Poster presentation