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Publications

2021

Formation of trans-Poly(thienylenevinylene) Thin Films by Solid-State Thermal Isomerization
Masayuki Wakioka*, Natsumi Yamashita, Hiroki Mori, Richard Murdey, Takafumi Shimoaka, Nobutaka Shioya, Atsushi Wakamiya, Yasushi Nishihara, Takeshi Hasegawa, and Fumiyuki Ozawa
Chem. Mater. 2021, 33, 5631-5638.  link


Four-Electron Reduction of Dioxygen on a Metal Surface: Models of Dissociative and Associative Mechanisms in a Homogeneous System
Hajime Kameo, Shigeyoshi Sakaki, Yasuhiro Ohki, Naoki Uehara, Takuya Kosukegawa, Hiroharu Suzuki, Toshiro Takao
Inorg. Chem. 2021, 60, 1550-1560.  link


Donor–Acceptor Polymers Containing 4,8-Dithienylbenzo[1,2-b:4,5-b’]dithiophene via Highly Selective Direct Arylation Polymerization
Masayuki Wakioka,* Naohiro Torii, Masahiko Saito, Itaru Osaka, and Fumiyuki Ozawa
ACS Appl. Polym. Mater. 2021, 3, 830-836.  link


2020

Cationic Ru–Se Complexes for Cooperative Si–H Bond Activation
Marvin Oberling, Elisabeth Irran, Yasuhiro Ohki, Hendrik F. T. Klare, and Martin Oestreich
Organometallics 2020, 39, 4747-4753.  link


A Dinuclear Mo2H8 Complex Supported by Bulky C5H2tBu3 ligands
Yasuhiro Ohki, Kodai Ishihara, Moeko Yaoi, Mizuki Tada, W. M. C. Sameera, Roger E. Cramer
Chem. Commun. 2020, 56, 8035-8038.  link


Metal-Sulfur Compounds in N2 Reduction and Nitrogenase-Related Chemistry
Kazuki Tanifuji, Yasuhiro Ohki
Chem. Rev. 2020, 120, 5194-5251.  link


Synthesis of Dinuclear Mo-Fe Hydride Complexes and Catalytic Silylation of N2
Kodai Ishihara, Yuna Araki, Mizuki Tada, Tsutomu Takayama, Yoichi Sakai, W. M. C. Sameera, Yasuhiro Ohki
Chem. Eur. J. 2020, 26, 9537-9546.  link
      (Hot Paper)

A Near-Infrared Emissive p-Conjugated Polymer Consisting of an Excited-state Intramolecular Prorotn Transfer Unit
Naoya Suzuki, Masayuki Wakioka, Fumiyuki Ozawa, Shigehiro Yamaguchi
Asian J. Org. Chem. 2020, 9(9), 1326-1332.  link


Synthesis, Characterization, and Application of Segphos Derivative Having Diferrocenylphosphino-Donor Moieties
Hao Hu, Hiroki Ichiryu, Naoki Seki, Kiyohiko Nakajima, Yasuhiro Ohki, Masamichi Ogasawara
Organometallics 2020, 39, 788-792.  link
      (Cover Art)

Mixed-Ligand Approach to Palladium-Catalyzed Direct Arylation Polymerization: Synthesis of Donor–Acceptor Polymers Containing Unsubstituted Bithiophene Units
Masayuki Wakioka,* Hazuki Morita, Nobuko Ichihara, Masahiko Saito, Itaru Osaka, and Fumiyuki Ozawa*
Macromolecules 2020, 53(1), 158-164.  link


2019

Synthesis of [Mo3S4] Clusters from Half-Sandwich Mo(V) Chlorides and Their Application as Platforms for [Mo3S4Fe] Cubes
Yasuhiro Ohki, Ryota Hara, Kenichiro Munakata, Mizuki Tada, Tsutomu Takayama, Yoichi Sakai, Roger E. Cramer
Inorg. Chem. 2019, 58, 568-573.  link


3-[4'-(Diethylboryl)phenyl]pyridine: Exclusive Crystallization of Cyclic Tetramer
Shigeharu Wakabayashi, Natsu Sugiyama, Yasuhiro Ohki, Takahito Itoh, Toshikazu Kitagawa
Chem. Asian J. 2019, 14, 5230-5240.  link


Recent Advances in the Chemical Synthesis of Nitrogenase Model Clusters
Kazuki Tanifuji, Yasuhiro Ohki
Struct. Bond. 2019, 179, 33-61.  link


Chemical Synthesis of an Asymmetric Mimic of the Nitrogenase Active Site
Kazuki Tanifuji, Yasuhiro Ohki
Methods Mol. Biol. 2019, 1876, 229-244 (chapter 15).  link


パラジウム触媒直接的アリール化重合 (DArP)
脇岡正幸・小澤文幸
OM News 2019, 82-87.


高性能直接アリール化重合触媒の開発とπ共役系高分子合成への応用
脇岡正幸
直接的芳香族カップリング反応の設計と応用, 監修: 三浦雅博・平野康次, シーエムシー出版, 2019, pp. 180-189.


2018

Cubane-Type [Mo3S4M] Clusters with First-Row Group 4-10 Transition-Metal Halides Supported by C5Me5 Ligands on Molybdenum
Yasuhiro Ohki, Keisuke Uchida, Ryota Hara, Mami Kachi, Mayu Fujisawa, Mizuki Tada, Yoichi Sakai, W. M. C. Sameera
Chem. Eur. J. 2018, 24, 17138-17147.  link
      (Hot Paper)

N2 Activation on a Molybdenum-Titanium-Sulfur Cluster
Yasuhiro Ohki, Keisuke Uchida, Mizuki Tada, Roger E. Cramer, Takashi Ogura, Takehiro Ohta
Nature Commun. 2018, 9, 3200.  link
      (Highlighted in the focus of Nat. Commun. (30 July 2018),  link)

Ambient Conversion of CO2 to Hydrocarbons by Biogenic and Synthetic [Fe4S4] Clusters
Martin Stiebritz, Caleb Hiller, Nathaniel Sickerman, Chi Chung Lee, Kazuki Tanifuji, Yasuhiro Ohki, Yilin Hu
Nature Catal. 2018, 1, 444-451.  link
      (Highlighted in news&views of Nat. Catal.,  link)

Tracing the ‘ninth sulfur’ of the Nitrogenase Cofactor via a Semi-Synthetic Approach
Kazuki Tanifuji, Chi Chung Lee, Kazuyuki Tatsumi, Yasuhiro Ohki, Yilin Hu, Markus W. Ribbe
Nature Chem. 2018, 10, 568-572.  link


Highly Efficient Catalysts for Direct Arylation Polymerization (DArP)
Masayuki Wakioka* and Fumiyuki Ozawa*
Asian J. Org. Chem. 2018, 7(7), 1206-1216.  link
      (Special Issue "C-H activation")

Synthesis of a 1,2-Dithienylethene-Containing Donor-Acceptor Polymer via Palladium-Catalyzed Direct Arylation Polymerization (DArP)
Masayuki Wakioka,* Natsumi Yamashita, Hiroki Mori, Yasushi Nishihara, and Fumiyuki Ozawa*
Molecules 2018, 23(4), 981.   link
      (Special Issue "Direct (Hetero)Arylation: A New Tool for Organic Electronics")

直接的アリール化重合ーπ 共役ポリマーの簡便かつ精密な合成法
脇岡正幸
化学と工業(日本化学会誌)「飛翔する若手研究者」 2018, 71(12), 1031-1032.


2017

Synthesis and Characterization of Bio-Inspired [Mo2Fe2] Hydride Clusters and Their Application to the Catalytic Silylation of N2
Yasuhiro Ohki, Yuna Araki, Mizuki Tada, Yoichi Sakai
Chem. Eur. J. 2017, 23, 13240-13248.    link


[Fe4] and [Fe6] Hydride Clusters Supported by Phosphines: Synthesis, Characterization, and Application in N2 Reduction
Ryoichi Araake, Kazuki Sakadani, Mizuki Tada, Yoichi Sakai, Yasuhiro Ohki
J. Am. Chem. Soc. 2017, 139, 5596-5606.    link


Impact of Ligands and Media on the Structures and Properties of Biological and Biomimetic Iron-Sulfur Clusters
Shun Ohta, Yasuhiro Ohki
Coord. Chem. Rev. 2017, 338, 207-225.    link


High-Efficiency Reduction of C1 Substrates to Hydrocarbons by the Homometallic Precursor and Synthetic Mimic of the Nitrogenase Cofactor
Nathaniel S. Sickerman, Kazuki Tanifuji, Yasuhiro Ohki, Kazuyuki Tatsumi, Markus W. Ribbe, Yilin Hu
J. Am. Chem. Soc., 2017, 139, 603-606.    link


Mixed-Ligand Approach to Palladium-Catalyzed Direct Arylation Polymerization: Highly Selective Synthesis of π-Conjugated Polymers with Diketopyrrolopyrrole Units
Masayuki Wakioka,* Rina Takahashi, Nobuko Ichihara, and Fumiyuki Ozawa*
Macromolecules 2017, 50(3), 927-934.  link


パラジウム触媒直接的アリール化重合 (DArP) の開発
脇岡正幸・小澤文幸
有機合成化学協会誌 2017, 75(8), 810-820.


2016

Co6H8(PiPr3)6: A Cobalt Octahedron with Face-Capping Hydrides
Yasuhiro Ohki, Yuki Shimizu, Ryoichi Araake, Mizuki Tada, W. M. C. Sameera, Jun-Ichi Ito, Hisao Nishiyama
Angew. Chem. Int. Ed. 2016, 55, 15821-15825.    link


Structure and reactivity of an asymmetric synthetic mimic of nitrogenase cofactor
Kazuki Tanifuji, Nathaniel S. Sickerman, Chi Chung Lee, Takayuki Nagasawa, Kosuke Miyazaki, Yasuhiro Ohki, Kazuyuki Tatsumi, Yilin Hu, Markus W. Ribbe
Angew. Chem. Int. Ed. 2016, 55, 15633-15636.    ink
      (Highlighted in ChemistryViews as a “Faithful Nitrogenase Cofactor Mimic”,  link)

Synthesis of Dimethylmanganese(II) Complexes Coordinated with N-heterocyclic Carbenes and Nucleophilic Substitution Reaction of Tetraalkoxysilanes by Diorganomanganese(II) Complexes
Takayoshi Hashimoto, Yuko Kawato, Yumiko Nakajima, Yasuhiro Ohki, Kazuyuki Tatsumi, Wataru Ando, Kazuhiko Sato, Shigeru Shimada
J. Organomet. Chem. 2016, 820, 14-19.    link


Inter-Conversion Between [Fe4S4] and [Fe2S2] Clusters Bearing Amide Ligands
Kazuki Tanifuji, Shunichi Tajima, Yasuhiro Ohki, Kazuyuki Tatsumi
Inorg. Chem. 2016, 55, 4512-4518.    link


N-Heterocyclic Carbene Complexes of Three- and Four-Coordinate Fe(I)
Yasuhiro Ohki, Ryoko Hoshino, Kazuyuki Tatsumi
Organometallics 2016, 35, 1368-1375.    link


Self-Assembly of 4-(Diethylboryl)pyridine: Crystal Structures of Cyclic Pentamer and Hexamer and Their Solvent-Dependent Selective Crystallization
Shigeharu Wakabayashi, Yuka Hori, Seiji Komeda, Yuki Shimizu, Yasuhiro Ohki, Misaki Horiuchi, Takahito Itoh, Kazuyuki Tatsumi
J. Org. Chem. 2016, 81, 2399-2404.    link


N-heterocyclic carbenes as supporting ligands in transition-metal N2 complexes
Yasuhiro Ohki, Hidetake Seino
Dalton Trans. 2016, 45, 874-880.    link


Structural analysis of poly(3-hexylthiophene) prepared via direct heteroarylation polymerization
Jean-Remi Pouliot, Masayuki Wakioka, Fumiyuki Ozawa, Yuning Li, Mario Leclerc*
Macromol. Chem. Phys 2016, 217(13), 1493-1500.    link


Mixed-Ligand Approach to Palladium-Catalyzed Direct Arylation Polymerization: Effective Prevention of Structural Defects Using Diamines
Eisuke Iizuka, Masayuki Wakioka, and Fumiyuki Ozawa*
Macromolecules 2016, 49(9), 3310-3317.    link
      (highlighted in Synfacts, 2016, 12, 0683,  link)

自然界におけるアンモニア合成(窒素固定化)の化学的理解に向けて
Yasuhiro Ohki
月刊ファインケミカル 2016, 45, 33-40.


2015

Combining a Nitrogenase Scaffold and a Synthetic Compound into an Artificial Enzyme
Kazuki Tanifuji, Chi Chung Lee, Yasuhiro Ohki, Kazuyuki Tatsumi, Yilin Hu, Markus W. Ribbe
Angew. Chem. Int. Ed. 2015, 54, 14022-14025.    link


Synthesis and Protonation of N-Heterocyclic-Carbene-Supported Dinitrogen Complexes of Molybdenum(0)
Yasuhiro Ohki, Keiya Aoyagi, Hidetake Seino
Organometallics 2015, 34, 3414-3420.    link


Mechanism of the Cooperative Si-H Bond Activation at Ru-S Bonds
Timo Stahl, Peter Hrobarik, C. David F. Konigs, Yasuhiro Ohki, Kazuyuki Tatsumi, Sebastian Kemper, Martin Kaupp, Hendrik F. T. Klare, Martin Oestreich
Chem. Sci. 2015, 6, 4324-4334.    link


Synthesis of Donor-Acceptor Polymers Containing Thiazolo[5,4-d]thiazole Units via Palladium-Catalyzed Direct Arylation Polymerization
Masayuki Wakioka,* Satoru Ishiki, and Fumiyuki Ozawa*
Macromolecules 2015, 48(22), 8382-8388.    link


Mixed-Ligand Approach to Palladium-Catalyzed Direct Arylation Polymerization: Synthesis of Donor-Acceptor Polymers with Dithienosilole (DTS) and Thienopyrroledione (TPD) Units
Eisuke Iizuka, Masayuki Wakioka, and Fumiyuki Ozawa*
Macromolecules 2015, 48(9), 2989-2993.    link


Remarkable Ligand Effect of P(2-MeOC6H4)3 on Palladium-Catalyzed Direct Arylation
Masayuki Wakioka, Yuki Nakamura, Michelle Montgomery, and Fumiyuki Ozawa*
Organometallics 2015, 34(1), 198-205.    link


ニトロゲナーゼ活性中心の構造と機能に関する新展開
Yasuhiro Ohki
Bull. Jpn. Soc. Coord. Chem. 2015, 66, 26-30.


パラジウム触媒直接的アリール化重合:π共役系高分子の新簡便合成法
脇岡正幸・小澤文幸
化学 2015, 70(5), 64-65.


2014