Faculty Profiles - YOSHIDA Takefumi

Misc - YOSHIDA Takefumi

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Nihon Kessho Gakkaishi ( The Crystallographic Society of Japan ) 67 ( 2 ) 146 - 148 2025.05

Supplementary cover: Unsupervised machine learning-based image recognition of raw IR spectra: Toward chemist-like chemical structural classification and beyond numerical data

（Part： Last author,　Corresponding author )

Journal of Chemical Information and Modeling 65 ( 7 ) 2025.04 [Invited]

Supplementary cover: Hydrogen bonding propagated phase separation in quasi-epitaxial single crystals: a Pd-Br molecular insulator

Takefumi Yoshida, Shinya Takaishi, Laurent Guérin, Tatsuhiro Kojima, Hiroyoshi Ohtsu, Masaki Kawano, Tatsuya Miyamoto, Hiroshi Okamoto, Kenichi Kato, Masaki Takata, Yuka Hosomi, Shoji Yoshida, Hidemi Shigekawa, Hisaaki Tanaka, Shin-ichi Kuroda, Hiroaki Iguchi, Brian K. Breedlove, Zhao-Yang Li, Masahiro Yamashita

Inorg. Chem. ( American Chemical Society (ACS) ) 61 ( 35 ) 14067 - 14074 2022.08 [Invited]

Front Cover: Elucidating 2D Charge‐Density‐Wave Atomic Structure in an MX–Chain by the 3D‐ΔPair Distribution Function Method (ChemPhysChem 6/2022)

Laurent Guérin, Takefumi Yoshida, Edoardo Zatterin, Arkadiy Simonov, Dmitry Chernyshov, Hiroaki Iguchi, Bertrand Toudic, Shinya Takaishi, Masahiro Yamashita

ChemPhysChem ( Wiley ) 23 ( 6 ) 2022.03 [Invited]

Cover Profile: Elucidating 2D Charge‐Density‐Wave Atomic Structure in an MX–Chain by the 3D‐ΔPair Distribution Function Method

Laurent Guérin, Takefumi Yoshida, Edoardo Zatterin, Arkadiy Simonov, Dmitry Chernyshov, Hiroaki Iguchi, Bertrand Toudic, Shinya Takaishi, Masahiro Yamashita

ChemPhysChem ( Wiley ) 2022.03 [Invited]

In situ X-ray emission spectroscopy for adsorbed oxygen and sulfur species on Pt/C electrocatalysts in polymer electrolyte fuel cells under operating conditions

宇留賀朋哉, 宇留賀朋哉, 三輪寛子, 吉田健文, 金子拓真, 佐々木岳彦, 東晃太朗, 坂田智裕, 関澤央輝, 関澤央輝, 松井公佑, 朝倉清高, 唯美津木, 岩澤康裕

応用物理学会秋季学術講演会講演予稿集(CD-ROM) 83rd 2022

希土類元素に対するエネルギー領域の放射光メスバウアー分光法

増田亮, 北尾真司, 田嶋寛介, 谷口博紀, 三井隆也, 藤原孝将, 依田芳卓, 永澤延元, 石川大介, Baron Alfred. Q, 吉田健文, 佐藤鉄, 加藤恵一, 小林寿夫, 瀬戸誠

アイソトープ・放射線研究発表会 ( 公益社団法人日本アイソトープ協会 ) 2 16 2022

Supplementary cover: Hidden Heterometallic Interaction Emerges from Resonant Inelastic X-ray Scattering in Luminescent TbPt Molecules

Takefumi Yoshida, Ahmed Shabana, David Chukwuma Izuogu, Kentaro Fuku, Tetsu Sato, Haitao Zhang, Yukina Yamamoto, Jun Kamata, Hitomi Ohmagari, Miki Hasegawa, Goulven Cosquer, Shinya Takaishi, Takuma Kaneko, Tomoya Uruga, Yasuhiro Iwasawa, Masahiro Yamashita （Part： Lead author,　Corresponding author )

The Journal of Physical Chemistry C ( American Chemical Society (ACS) ) 126 2022

Theoretical calculations are typically utilized for examining intermetallic interactions. However, to validate theory, experimental confirmation of the existence of these interactions is necessary. We synthesized new heterometallic Ln–Pt complexes, NEt4{[Pt(PhSAc)4]Ln[(PhSAc)4Pt]}·2DMF (Ln: lanthanoid = Gd (1), Tb (2), Dy (3), PhSAc = benzothioacetate, NEt4 = tetraethylammonium), in which both diamagnetic Pt(II) ions interact with the central Ln(III) ion. Typically, these interactions are not detected, because the distance between Ln and Pt atoms (~3.6 Å) is much larger than the covalent radius (~3.3 Å) and ionic radius (~3.10 Å). Pt-LIII resonant inelastic X-ray scattering (RIXS) analysis was conducted to experimentally confirm the unique influence of the hidden Ln–Pt interaction on the luminescence of the Tb–Pt molecule, where the interaction induced emission properties in the Tb and Pt ions, with high quantum yield (59%). Quantum theory of atoms in molecules (QTAIM) analysis was also used to confirm the experimental results. RIXS analysis allowed the identification of several distinctive characteristics of the coordination environment, including the existence of heterometallic interactions, that affected the observed luminescence.

supplementary cover: Emergence of Metallic Conduction and Cobalt(II)-based Single-Molecule Magnetism in the Same Temperature Range

Yongbing Shen, Hiroshi Ito, Haitao Zhang, Hideki Yamochi, Goulven Cosquer, Carmen Herrmann, Toshiaki Ina, Shinji K. Yoshina, Brian K. Breedlove, Akihiro Otsuka, Manabu Ishikawa, Takefumi Yoshida, Masahiro Yamashita

Journal of the American Chemical Society 143 ( 13 ) 4891 - 4895 2021.04 [Invited]

Single-molecule magnets exhibit magnetic bistabililties at the molecular level, making them promising for molecule-based spintronics due to high magnetic densities. The incorporation of SMM behavior and electrical conductivity in one compound is rare because these two physical properties often do not operate in the same temperature range, which further hinders their use in practical applications. Here we present an organic-inorganic molecular hybrid, β″-(BEDO-TTF)3[Co(pdms)2]·(MeCN)(H2O)2 (BO3) (BEDO-TTF = bis(ethylenedioxy)tetrathiafulvalene and H2pdms = 1,2-bis(methanesulfonamido)benzene), which manifests both metallic conduction (electrical conductivity up to 1000 S cm-1 at 12 K under 2.0 gigapascal pressure) and SMM behavior in the temperature range 12-26 K for the first time.

Supplementary Cover Art; Ni(II)-Based Metallosupramolecular Polymer with Carboxylic Acid Groups: A Stable Platform for Smooth Imidazole Loading and the Anhydrous Proton Channel Formation

Yemineni S L V Narayana, Takefumi Yoshida, Manas Kumar Bera, Sanjoy Mondal, Masayoshi Higuchi

ACS Omega ( American Chemical Society (ACS) ) 5 ( 24 ) 2020.06 [Invited]

One-Pot Synthesis of Three-Dimensionally Hyperbranched Eu/Fe-Based Heterometallo-Supramolecular Polymers as Thermally Tough Proton-Conducting Nanoparticles

Yemineni S. L. V. Narayana, Utpal Rana, Chanchal Chakraborty, Takefumi Yoshida, Masayoshi Higuchi

ACS Applied Polymer Materials ( American Chemical Society (ACS) ) 2 ( 11 ) 2020 [Invited]

Inside front cover

Chemical Science ( Royal Society of Chemistry (RSC) ) 11 ( 41 ) 11084 - 11084 2020

Cover image; Construction of Coordination Nanosheets Based on Tris(2,2 '-bipyridine)-Iron-(Fe2+) Complexes as Potential Electrochromic Materials

Manas Kumar Bera, Taizo Mori, Takefumi Yoshida, Katsuhiko Ariga, Masayoshi Higuchi

ACS APPLIED MATERIALS & INTERFACES ( AMER CHEMICAL SOC ) 11 ( 12 ) 2019.03 [Invited]

The coordination nanosheets (CONASHs) are emerging as a new class of functional two-dimensional materials, which are one of the most active research areas of chemistry and physics in this decade. Despite the success of various structural and functional CONASHs, the development of a new molecular structure to discover alluring functional CONASHs remains challenging. Herein, we report successful preparation of two novel CONASHs (NBP1 and NBP2) through coordination between one of the unexplored molecular frameworks of bis(2,2'-bipyridine)-based ligands (BP1 and BP2) and Fe2+ ions. Using a liquid-liquid interface as a platform, large-scale thin films of multilayer CONASHs have been prepared without any support, which can be deposited onto any desired substrate. Detailed characterization of the CONASHs using various microscopic and spectroscopic techniques reveals homogeneous and flat morphology of nanometer thickness with the quantitative formation of tris(2,2'-bipyridine)-Fe2+ complex motifs in the nanosheet frameworks. The color of the films has been tuned from blue to magenta by the suitable molecular design of the ligands. Owing to the insolubility of the CONASH films in any solvent and the presence of redox-active Fe2+, we explore the functionality of these nanostructured thin films deposited on indium tin oxide as electrochromic materials. The CONASHs exhibit color-to-colorless and color-to-color electrochromic transitions with attractive response times, switching stabilities, and coloration efficiencies. Finally, we demonstrate solid-state electrochromic devices of the CONASHs operated at a potential range of +2.5 to -2.5 V, which are electrochemically stable for several switching cycles, suggesting that these CONASHs are potential electrochromic materials for next-generation display applications.

Back cover: Precise Synthesis of Alternate Fe(II)/Os(II)‐Based Bimetallic Metallo‐Supramolecular Polymer

Manas K. Bera, Yoshikazu Ninomiya, Takefumi Yoshida, Masayoshi Higuchi

41 2070003 2019 [Invited]

Cover image: Electrochromic devices using Fe(II)‐based metallo‐supramolecular polymer: introduction of ionic liquid as electrolyte to enhance the thermal stability

Sanjoy Mondal, Takefumi Yoshida, Masayoshi Higuchi

J. Soc. Inf. Display 27 ( 11 ) 2019 [Invited]

Inside back cover: Observation of charge bistability in quasi- one-dimensional halogen-bridged palladium complexes by X-ray absorption spectroscopy

Yoshida Takefumi

Dalton Trans. 48 11985 2019 [Invited]

Back cover: Slow magnetic relaxation and luminescence of Tb-based coordination polymer

Takefumi Yoshida, Yemineni S. L. V. Narayana, Hitoshi Abe, Masayoshi Higuchi

Dalton Trans. 47 16360 - 16360 2018 [Invited]

Cover Profile: Slow Magnetic Relaxation in a Palladium–Gadolinium Complex Induced by Electron Density Donation from the Palladium Ion

David Chukwuma Izougu, Takefumi Yoshida, Haitao Zhang, Goulven Cosquer, Keiichi Katoh, Shuhei Ogata, Miki Hasekawa, Hiroyuki Nojiri, Marko Damjanović, Wolfgang Wernsdorfer, Tomoya Uruga, Toshiaki Ina, Brian K. Breedlove, Masahiro Yamashita

Chem. Eur. J. 24 9169 2018 [Invited]

Front Cover: Slow Magnetic Relaxation in a Palladium–Gadolinium Complex Induced by Electron Density Donation from the Palladium Ion (Chem. Eur. J. 37/2018)

David Chukwuma Izougu, Takefumi Yoshida, Haitao Zhang, Goulven Cosquer, Keiichi Katoh, Shuhei Ogata, Miki Hasekawa, Hiroyuki Nojiri, Marko Damjanović, Wolfgang Wernsdorfer, Tomoya Uruga, Toshiaki Ina, Brian K. Breedlove, Masahiro Yamashita

Chem. Eur. J. 24 9165 2018 [Invited]

Short-Range ChargeDensity-Wave Ordering of MX Chain Analyzed by Using 3Ddelta Pair Distribution Function

Yoshida Takefumi （Part： Lead author,　Last author,　Corresponding author )

Bulletin of Japan Society of Coordination Chemistry ( 錯体化学会 ) 69 ( 69 ) 57 - 59 2017 [Invited]

留学体験記

吉田健文（Part： Lead author,　Last author,　Corresponding author )

錯体化学若手の会ニュースレター ( 4 ) 2016 [Invited]

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