NEW! Shun Yoshida, Ryota Matsuoka,* Shojiro Kimura, and Tetsuro Kusamoto*
"Spin-Correlated Luminescence of Mechanically Generated Radical Species" Angew. Chem. Int. Ed.2026, e3756149. → link
2025
Ryota Matsuoka,* Yusuke Yoneda, Hikaru Kuramochi, Tomoaki Miura, Tadaaki Ikoma, Masaki Saigo, Takumi Ehara, Kiyoshi Miyata, Ken Onda, and Tetsuro Kusamoto*
"Spectroscopic Characterization of the Charge-Separated Zwitterionic State Responsible for the Excimer-like Emission of a Luminescent Diradical" J. Am. Chem. Soc.2026, 148, 1086-1095. → link
Yoshika Takewaki, Asato Mizuno,* Ryohei Kishi, and Tetsuro Kusamoto*
"Effects of substitution position on luminescence properties of carbazole-containing monoradicals" Chem. Lett.2025, 54, upaf213. → link
Sota Tamaki, Riina Kuwata, Shuto Wakita, Yasuko Osakada, Mamoru Fujitsuka, Tetsuro Kusamoto, Kazushi Mashima, and Hayato Tsurugi*
"Mixed-Metal Ce-Zr-Mn Clusters as Photo-Catalysts for Decarboxylative Functionalization of Carboxylic Acids" Angew. Chem. Int. Ed.2025, 64, e202505639. → link
Takuya Akiyama, Akira Yamamoto, Tao Kasahara, Tetsuro Kusamoto, and Hayato Tsurugi*
"(Imido)tungsten-Alkylidene-Catalyzed [2+2+1]-Cycloaddition Reaction of 3,3-Disubstituted Cyclopropenes and Internal Alkynes Giving Multisubstituted Cyclopentadienes" Organometallics2025, 44, 1047-1056. → link
Sota Tamaki, Tetsuro Kusamoto, and Hayato Tsurugi*
"Decarboxylative Functionalization of Carboxylic Acids with Easily Oxidizable, Unstable, and Difficult Substituents under Visible Light Irradiation" ChemCatChem2025, 17, e202402106. → link
Yohei Hattori,* Ryota Matsuoka,* Atsumi Baba, Shun Yoshida, Mihoko Yamada, Ryo Fujita, Daiya Suzuki, Yoshitane Imai, Kingo Uchida, Tetsuro Kusamoto, Gwénaël Rapenne, and Tsuyoshi Kawai*
"A Luminescent Stable Triarylmethyl Diradical with an Axially Chiral Spacer" Chem. Eur. J.2025, 31, e202500284. → link
2024
Takuto Mibu,* Ryota Matsuoka, Masanari Nagasaka, and Tetsuro Kusamoto*
"Emission enhancement in a luminescent polychlorinated diphenylpyridylmethyl radical through coordination to silver(I)" Dalton. Trans.2024, 54, 2265-2270. → link
Takuya Akiyama, Tetsuro Kusamoto, Kazushi Mashima, and Hayato Tsurugi*
"Synthesis of Multisubstituted Cyclopentadiene Derivatives from 3,3-Disubstituted Cyclopropenes and Internal Alkynes Catalyzed by Low-Valent Niobium Complexes" J. Am. Chem. Soc.2024, 146, 33338-33348. → link
Keita Sonoda, Sota Shimokawa, Shuichi Suzuki, Tetsuro Kusamoto, and Akira Ueda*
"Boron-bridged bis(tetrathiafulvalene) zwitterionic neutral radical conductors: substituent effects on intramolecular and intermolecular electronic interactions and physical properties" Bull. Chem. Soc. Jpn.2024, 97, uoae107. → link
Sota Tamaki, Tetsuro Kusamoto, and Hayato Tsurugi*
"Decarboxylative Alkylation of Carboxylic Acids with Easily Oxidizable Functional Groups Catalyzed by an Imidazole-Coordinated Fe3 Cluster under Visible Light Irradiation" Chem. Eur. J.2024, 30, e202402705. → link
Asato Mizuno,* Ryota Matsuoka, Shojiro Kimura, Keisuke Ochiai, and Tetsuro Kusamoto*
"Spin-Correlated Luminescence of a Carbazole-Containing Diradical Emitter: Single-Molecule Magnetoluminescence and Thermally Activated Emission" J. Am. Chem. Soc.2024, 146, 18470-18483. → link
Asato Mizuno, Ryota Matsuoka, Takuto Mibu, and Tetsuro Kusamoto*
"Luminescent Radicals" Chem. Rev.2024, 124, 1034-1121. → link
2023
Ryota Matsuoka,* Shojiro Kimura, Tomoaki Miura, Tadaaki Ikoma, and Tetsuro Kusamoto*
"Single-molecule Magnetoluminescence from a Spatially Confined Persistent Diradical Emitter" J. Am. Chem. Soc.2023, 145, 13615-13622. → link
Yugo Oshima,* Taishi Takenobu, Jiang Pu, Keisuke Ishiguro, Reizo Kato, Hiroshi M. Yamamoto, and Tetsuro Kusamoto
"A Memristive Oscillator" Adv. Physics Res.2023, 2300117. → link
Yohei Hattori,* Ryota Kitajima, Atsumi Baba, Kohei Yamamoto, Ryota Matsuoka, Tetsuro Kusamoto, and Kingo Uchida
"Effects of hydrocarbon substituents on highly fluorescent bis(4-phenylphenyl)pyridylmethyl radical derivatives" Mater. Adv.2023, 4, 5149-5159. → link
2022
Hwan-Hee Cho, Shun Kimura, Neil C. Greenham, Yuki Tani, Ryota Matsuoka, Hiroshi Nishihara, Richard H. Friend,* Tetsuro Kusamoto,* and Emrys W. Evans*
"Near-Infrared Light-Emitting Diodes from Organic Radicals with Charge Control" Adv. Opt. Mater.2022, 10, 2200628. → link
Ryota Matsuoka, Asato Mizuno, Takuto Mibu, and Tetsuro Kusamoto*
"Luminescence of doublet molecular systems" Coord. Chem. Rev.2022, 467, 214616. → link
Taro Suemune, Keita Sonoda, Shuichi Suzuki, Hiroyasu Sato, Tetsuro Kusamoto, and Akira Ueda*
"Partially Oxidized Purely Organic Zwitterionic Neutral Radical Conductor: Multi-step Phase Transitions and Crossover Caused by Intra- and Intermolecular Electronic Interactions" J. Am. Chem. Soc.2022, in press. DOI: 10.1021/jacs.2c08813 → link
Yohei Hattori,* Ryota Kitajima, Wataru Ota, Ryota Matsuoka, Tetsuro Kusamoto, Tohru Sato, and Kingo Uchida
"The simplest structure of a stable radical showing high fluorescence efficiency in solution: benzene donors with triarylmethyl radicals" Chem. Sci.2022, 13, 13418-13425. → link
Yohei Hattori,* Ryota Kitajima, Ryota Matsuoka, Tetsuro Kusamoto, Hiroshi Nishihara, and Kingo Uchida
"Amplification of luminescence of stable radicals by coordination to NHC?gold(I) complex" Chem. Commun.2022, 58, 2560-2563. → link
2021
Ryota Matsuoka, Tatsuhiro Yoshimoto, Yasutaka Kitagawa, and Tetsuro Kusamoto*
"Structural and Magnetic Studies on Nickel(II) and Cobalt(II) Complexes with Polychlorinated Diphenyl(4-pyridyl)methyl Radical Ligands" Molecules2021, 26, 5596. → link
Tetsuro Kusamoto,* Shun Kimura
"Photostable Luminescent Triarylmethyl Radicals and Their Metal Complexes: Photofunctions Unique to Open-shell Electronic States" Chem. Lett.2021, 50, 1445-1459. OPEN ACCESS → link
Ryota Matsuoka,* Shojiro Kimura, and Tetsuro Kusamoto*
"Solid-State Room-Temperature Near-Infrared Photoluminescence of a Stable Organic Radical" ChemPhotoChem2021, 5, 669-673. → link
Shun Kimura, Ryota Matsuoka, Shojiro Kimura, Hiroshi Nishihara, and Tetsuro Kusamoto*
"Radical-Based Coordination Polymers as a Platform for Magnetoluminescence" J. Am. Chem. Soc.2021, 143, 5610-5615. → link
Shun Kimura, Motoyuki Uejima, Wataru Ota, Tohru Sato, Shinpei Kusaka, Ryotaro Matsuda, Hiroshi Nishihara*, and Tetsuro Kusamoto*
"An Open-shell, Luminescent, Two-Dimensional Coordination Polymer with a Honeycomb Lattice and Triangular Organic Radical" J. Am. Chem. Soc.2021, 143, 4329-4338. → link
Shun Kimura, Shojiro Kimura, Ken Kato, Yoshio Teki*, Hiroshi Nishihara*, and Tetsuro Kusamoto*
"A ground-state-dominated magnetic field effect on the luminescence of stable organic radicals" Chem. Sci.2021, 12, 2025-2029. Selected as a part of the themed collection: 2020 Chemical Science HOT Article Collection→ link Selected as the Inside Front Cover → link
Sara Mattiello, Francesca Corsini, Sara Mecca, Mauro Sassi, Riccardo Ruffo, Giuseppe Mattioli, Yohei Hattori, Tetsuro Kusamoto,* Gianmarco Griffini,* and Luca Beverina*
"First demonstration of the use of stable open shell derivatives as organic luminophores for transparent Luminescent Solar Concentrators" Mater. Adv.2021, 2, 7369-7378. → link
Yohei Hattori,* Shunsuke Tsubaki, Ryota Matsuoka, Tetsuro Kusamoto, Hiroshi Nishihara, and Kingo Uchida*
"Expansion of Photostable Luminescent Radicals by Meta-Substitution" Chem. Asian J.2021, 16, 2538-2544. → link
Ryo Yoshimoto, Satoshi Yamashita, Hiroki Akutsu, Yasuhiro Nakazawa*, Tetsuro Kusamoto, Yugo Oshima, Takehito Nakano, Hiroshi M. Yamamoto, and Reizo Kato
"Electric dipole induced bulk ferromagnetism in dimer Mott molecular compounds" Sci. Rep.2021, 1332. → link
2020
Shun Kimura, Shojiro Kimura, Hiroshi Nishihara*, and Tetsuro Kusamoto*
"Excimer emission and magnetoluminescence of radical-based zinc(II) complexes doped in host crystals" Chem. Commun.2020, 56, 11195-11198. Selected as a part of the themed collection: 2020 Emerging Investigators → link Selected as the Inside Front Cover → link
Chie Ohde, Tetsuro Kusamoto*, and Hiroshi Nishihara*
"Effects of halogen atom replacement on the structure and magnetic properties of a molecular crystal with supramolecular two-dimensional network mediated via sulfur's σ-holes" J. Magn. Magn. Mater.2020, 497, 165986. → link
Ryosuke Miyake*, Eri Suganuma, Shun Kimura, Hirotoshi Mori, Jun Okabayashi, and Tetsuro Kusamoto
"Cyclic heterometallic interactions formed from a flexible tripeptide complex showing effective antiferromagnetic spin coupling" Angew. Chem. Int. Ed.2020, 60, 5179-5183. → link
Hiroaki Maeda, Aayushi Bajpayee, Tetsuro Kusamoto, and Hiroshi Nishihara
"Construction of Bis(2,6-bis(1-methylbenzimidazol-2-yl)pyridine)iron(II) Coordination Polymer for Incorporation of Magnetic Function" JIOPM2020, 30, 147-152. → link
2019
Shun Kimura, Hikaru Uchida, Tetsuro Kusamoto*, and Hiroshi Nishihara*
"One-dimensional magnetic chain composed of CuII and polychlorinated dipyridylphenylmethyl radical: temperature-dependent Jahn-Teller distortion correlated to π-conjugation and magnetic properties" Dalton Trans.2019, 48, 7090-7093. Selected as a HOT article → link
Akira Tanushi, Shun Kimura, Tetsuro Kusamoto*, Moe Tomonaga, Yasutaka Kitagwa, Masayoshi Nakano, and Hiroshi Nishihara*
"NIR Emission and Acid-Induced Intramolecular Electron Transfer Derived from a SOMO-HOMO Converted Non-Aufbau Electronic Structure" J. Phys. Chem. C2019, 123, 4417-4423. → link
Ken Kato, Shun Kimura, Tetsuro Kusamoto*, Hiroshi Nishihara*, and Yoshio Teki*
"Luminescent Radical‐Excimer: Excited‐State Dynamics of Luminescent Radicals in Doped Host Crystals" Angew. Chem. Int. Ed.2019, 58, 2606-2611. Selected as a HOT paper → link
Tetsuro Kusamoto* and Hiroshi Nishihara*
"Zero-, one- and two-dimensional bis(dithiolato)metal complexes with unique physical and chemical properties" Coord. Chem. Rev.2019, 380, 419-439. → link
Toyohiro Usui, Zhendong Liu, Hirokazu Igarashi, Yukichi Sasaki, Yuji Shiramata, Hiroki Yamada, Koji Ohara, Tetsuro Kusamoto, and Toru Wakihara*
"Identifying the Factors Governing the Early-Stage Degradation of Cu-Chabazite Zeolite for NH3-SCR" ACS Omega2019, 4, 3653-3659. → link
Hiroshi Okada, Hiroshi Ueno, Yasuhiro Takabayashi, Takeshi Nakagawa, Martina Vrankic, John Arvanitidis, Tetsuro Kusamoto, Kosmas Prassides*, and Yutaka Matsuo*
"Chemical reduction of Li+@C60 by decamethylferrocene to produce neutral Li+@C60•-" Carbon2019, 153, 467-471. → link
Selected publications before 2018
Tetsuro Kusamoto* and Hiroshi Nishihara*
"Efficiency breakthrough for radical LEDs" Nature2018, 563, 480-481. NEWS AND VIEWS→link
Shun Kimura, Tetsuro Kusamoto*, Shojiro Kimura, Ken Kato, Yoshio Teki, and Hiroshi Nishihara*
"Magnetoluminescence in a Photostable, Brightly Luminescent Organic Radical in a Rigid Environment" Angew. Chem. Int. Ed.2018, 57, 12711-12715. Selected as VIP→link→Inside cover
Shun Kimura, Akira Tanushi, Tetsuro Kusamoto*, Shuntaro Kochi, Tohru Sato, and Hiroshi Nishihara*
"A Luminescent Organic Radical with Two Pyridyl Groups: High Photostability, Dual Stimuli-Responsive Property, and Theoretical Analyses of Photophysical Processes" Chem. Sci.2018, 9, 1996-2007. →link
Yohei Hattori, Shun Kimura, Tetsuro Kusamoto*, Hiroaki Maeda, and Hiroshi Nishihara*
"Cation-responsive turn-on fluorescence and absence of heavy atom effects of pyridyl-substituted triarylmethyl radicals" Chem. Commun.2018, 54, 615-618. →link
Chie Ohde, Tetsuro Kusamoto*, Koji Nakabayashi, Shin-ichi Ohkoshi, Hiroshi Nishihara*
"Supramolecular Two-Dimensional Network Mediated via Sulfur's σ-Holes in a Conducting Molecular Crystal: Effects of Its Rigidity on Physical Properties and Structural Transition" Cryst. Growth Des.2017, 17, 2230-2210. →link
Yasuyo Ogino, Tetsuro Kusamoto*, Yohei Hattori, Masaki Shimada, Mizuho Tsuchiya, Yoshinori Yamanoi, Eiji Nishibori, Kunihisa Sugimoto, Hiroshi Nishihara*
"Solvent-Controlled Doublet Emission of an Organometallic Gold(I) Complex with a Polychlorinated Diphenyl(4-pyridyl)methyl Radical Ligand: Dual Fluorescence and Enhanced Emission Efficiency" Inorg. Chem.2017, 56, 3909-3915. →link
Yohei Hattori, Tetsuro Kusamoto*, Tohru Sato, Hiroshi Nishihara*
"Synergistic Luminescence Enhancement of a Pyridyl-substituted Triarylmethyl Radical Based on Fluorine Substitution and Coordination to Gold" Chem.Comm.2016, 52, 13393-13396. →link
Tetsuro Kusamoto*, Shun Kimura, Yasuyo Ogino, Chie Ohde, Hiroshi Nishihara*
"Modulated Luminescence of a Stable Open-shell Triarylmethyl Radical: Effects of Chemical Modification on its Electronic Structure and Physical Properties" Chem. Eur. J.2016, 22, 17725-17733. →link
Tetsuro Kusamoto*, Shun Kimura, Hiroshi Nishihara*
"Structural and Magnetic Investigations of a Heterospin System Composed of High-spin Mn(II) and Pyridyl-containing Triarylmethyl Radicals" Chem Lett. 2016, 45, 1057-1059. →link
Yohei Hattori, Tetsuro Kusamoto*, Hiroshi Nishihara*
"Highly Photostable Luminescent Open-shell (3,5-Dihalo-4-pyridyl)bis(2,4,6-trichlorotrichlorophenyl)methyl Radicals: Significant Effects of Halogen Atoms on Their Photophysical and Photochemical Properties" RSC Adv.2015, 5, 64802-64805. →link
Akira Tanushi, Tetsuro Kusamoto*, Yohei Hattori, Kenji Takada, Hiroshi Nishihara*
"Spin-Reconstructed Proton-Coupled Electron Transfer in a Ferrocene-Nickeladithiolene Hybrid" J. Am. Chem. Soc.2015, 137, 6448-6451. →link
Tetsuro Kusamoto*, Yohei Hattori, Akira Tanushi, Hiroshi Nishihara*
"Intramolecular Ferromagnetic Radical-CuII Coupling in a CuII Complex Ligated with Pyridyl-Substituted Triarylmethyl Radicals" Inorg. Chem. 2015, 54, 4186-4188. →link
Yohei Hattori, Tetsuro Kusamoto*, Hiroshi Nishihara*
"Enhanced Luminescent Properties of an Open-Shell (3,5-Dichloro-4-pyridyl)bis(2,4,6-trichlorophenyl)methyl Radical by Coordination to Gold" Angew. Chem. Int. Ed2015, 54, 3731-3734. →link
Yohei Hattori, Tetsuro Kusamoto*, Hiroshi Nishihara*
"Luminescence, Stability, and Proton Response of an Open-Shell (3,5-Dichloro-4-pyridyl)bis(2,4,6-trichlorophenyl)methyl Radical" Angew. Chem. Int. Ed2014, 53, 11845-11848. →link
Tetsuro Kusamoto*, Hiroshi Nishihara, Reizo Kato
"Substituent-Dependent Spin-Density Distribution and Coexistence of Fe 3d and π Spins on Ferrocene-Tetrathiafulvalene Hybrids" Inorg. Chem.2013, 52, 13809-13811. →link
Tetsuro Kusamoto*, Hiroshi M. Yamamoto, Reizo Kato
"Utilization of σ-Holes on Sulfur and Halogen Atoms for Supramolecular Cation-Anion Interactions in Bilayer Ni(dmit)2 Anion Radical Salts" Cryst. Growth Des.2013, 13, 4533-4541. →link
Tetsuro Kusamoto*, Hiroshi M. Yamamoto, Naoya Tajima, Yugo Oshima, Satoshi Yamashita, Reizo Kato
"Bilayer Mott System with Cation…Anion Supramolecular Interactions Based on Nickel Dithiolene Anion Radical:Coexistence of Ferro- and Antiferromagnetic Anion Layers and Large Negative Magnetoresistance" Inorg. Chem.2013, 52, 4759-4761. →link
Tetsuro Kusamoto, Kenji Takada, Ryota Sakamoto, Shoko Kume, Hiroshi Nishihara*
"Ferrocene-Dithiolene Hybrids: Control of Strong Donor-Acceptor Electronic Communication to Reverse the Charge Transfer Direction" Inorg. Chem.2012, 51, 12102-12113. Selected as a Cover Art→link
Tetsuro Kusamoto,* Hiroshi M. Yamamoto, Naoya Tajima, Yugo Oshima, Satoshi Yamashita, Reizo Kato
"Bilayer Mott System Based on Ni(dmit)2 (dmit = 1,3-dithiole-2-thione-4,5-dithiolate) Anion Radicals: Two Isostructural Salts Exhibit Contrasting Magnetic Behavior" Inorg. Chem.2012, 51, 11645-11654. →link
Tetsuro Kusamoto, Shoko Kume, Hiroshi Nishihara*
"Cyclization of TEMPO Radicals Bound to Metalladithiolene Induced by SOMO-HOMO Level Conversion" Angew. Chem. Int. Ed.2010, 49, 529-531. →link
Tetsuro Kusamoto, Jaime Ruiz, Didier Astruc*
"Towards Molecular Batteries: Coverage of Small Aminosilica Nanoparticles with Ferrocenyl and Pentamethylferrocenyl Groups and Their Redox Properties" New. J. Chem.2009, 33, 2204-2207. →link
Tetsuro Kusamoto, Shoko Kume, Hiroshi Nishihara*
"Realization of SOMO-HOMO Level Conversion for a TEMPO-Dithiolate Ligand by Coordination to Platinum(II)" J. Am. Chem. Soc.2008, 130, 13844-13845. →link
