Publications and more

Publications

8) Transformation of Tertiary Amines at a Cationic [CCH] Subunit Stabilized by Coordination with a Tetrairon Core
Masakazu Nishiya, Ryo Funada, Shun Ohta, Masaaki Okazaki
Chem. Lett. accepted

7) Impact of Ligands and Media on the Structure and Properties of Biological and Biomimetic Iron-Sulfur Clusters
Shun Ohta, Yasuhiro Ohki
Coord. Chem. Rev. 2017 338 207–225 (Link)

6) Activation of Isocyanides and Hydrosilanes by a Cationic [CCH] Subunit in a Tetrairon–Tetracarbon Cluster
Wataru Taniwaki, Shun Ohta, Masaaki Okazaki
Bull. Chem. Soc. Jpn. 2016 89 11–19 (BCSJ award, Cover Picture) (Link)

5) A Nitrogenase Cluster Model [Fe8S6O] with an Oxygen Unsymmetrically Bridging Two Proto–Fe4S3 Cubes : Relevancy to the Substrate Binding Mode of the FeMo Cofactor
Shun Ohta, Yasuhiro Ohki, Takayoshi Hashimoto, Roger E. Cramer, Kazuyuki Tatsumi
Inorg. Chem. 2012 51 11217-11219
(Highlighted in the Virtual Issue on Models for Metalloenzymes) (Link)

4) Oxido-bridged Di-, Tri-, Tetra-Nuclear Iron Complexes Bearing Bis(trimethylsilyl)amide and Thiolate Ligands
Shun Ohta, Saori Yokozawa, Yasuhiro Ohki, Kazuyuki Tatsumi
Inorg. Chem. 2012 51 2645-2651 (Link)

3) Monomeric Iron(II) Complexes Having Two Sterically Hindered Arylthiolates
Yasuhiro Ohki, Shun Ohta, Kazuyuki Tatsumi
Inorg. Synth. 35 137-143 (Link)

2) Synthesis, Structures, and Electronic Properties of [8Fe–7S] Cluster Complexes Modeling the Nitrogenase P–Cluster
Yasuhiro Ohki, Motosuke Imada, Ayuro Murata, Yusuke Sunada, Shun Ohta, Masaru Honda, Takahiro Sasamori, Norihiro Tokitoh, Motomi Katada, Kazuyuki Tatsumi
J. Am. Chem. Soc. 2009 131 13168–13178
(Highlighted in JACS Select #9 focused on bio-inorganic chemistry) (Link)

1) Synthesis and Characterization of Heteroleptic Iron(II) Thiolate Complexes with Weak Iron–Arene Interactions
Shun Ohta, Yasuhiro Ohki, Yohei Ikagawa, Rie Suizu, Kazuyuki Tatsumi
J. Organomet. Chem. 2007 692 4792–4799 (Invited Paper) (Link)

Invited Lecture

2) Synthesis, Structures, and Reactivities of Bisindolyl-Coordinated Titanium Complexes
Shun Ohta
Joint Meeting of the Tohoku Area Chemistry Societies, September 16–17, 2017, Morioka

1) Synthesis of Three–membered [M–Si–E] Metallacycles (M = transition metals, E = p-block atoms) and Their Reactivities toward Small Molecules
Shun Ohta
日本化学会東北支部主催事業 無機・分析化学コロキウム, June 3–4, 2016, Sendai

Media

2) くさいだけじゃない !? "アンモニア”の大切さとその新しいつくりかた
Shun Ohta
青い森しんきん とれんど情報 8月号, August 20, 2017

1) マグネシウムに自然エネルギーを蓄えて活用する
Shun Ohta
FM Apple Wave "りんご王国こうぎょくカレッジ", Janually 29, 2017, Hirosaki

Awards

4) March 2017 H28弘前大学若手・新任研究者支援事業研究成果発表会優秀賞 (Shun OHTA)

3) Janually 2016 BCSJ award (Shun OHTA)

2) April 2009 日本化学会第89春季年会学生講演賞 (Shun OHTA)

1) July 2008 名古屋大学学術奨励賞 (Shun OHTA)

Presentations since 2015

32) Stereoselective Polymerization of Bio-renewable Myrcene Using New Simple Catalyst Systems Based on Rare-Earth-Metal Chlorides
Ryota Sato, Nao Ishizaki, Kyosuke Matsumoto, Shun Ohta, Tomoyuki Toda, Kei Nishii
2nd STI-Gigaku 2017, October 6–7, 2017, Nagaoka(Poster)

31) Group IV Transition Metal Coordination Chemistry of Bis(indolyl) Ligands
Shun Ohta
第6回4校学術交流会, September 15, 2017, Hachinohe(Oral)

30) Polymerization of Bio­renewable Dienes Using New Simple Catalyst Systems Based on Rare­-Earth-­Metal Chlorides
Kei Nishii, Kyosuke Matsumoto, Nao Ishizaki, Shun Ohta, Tomoyuki Toda
66th Symposium on Macromolecules, September 20–22, 2017, Matsuyama(Poster)

29) Side-on型シランチオン配位イリジウム錯体と小分子との反応
Ryusuke Ohtani, Wataru Taniwaki, Shun Ohta, Masaaki Okazaki
The 67th Conference of Japan Society of Coordination Chemistry, September 16–18, 2017, Sapporo(Poster)

28) 陽イオン性ルテニウム多核錯体を用いたニトリルおよびイソニトリルの炭素-窒素三重結合の開裂反応
Mai Ikeda, Shin Shibayama, Shun Ohta, Masaaki Okazaki
The 67th Conference of Japan Society of Coordination Chemistry, September 16–18, 2017, Sapporo(Poster)

27) Activation of small organic molecules by an iridium complex possessing a side-on-bound phosphasilene ligand
Yuuya Terauchi, Tetsuaki Oguro, Shun Ohta, Masaaki Okazaki
Joint Meeting of the Tohoku Area Chemistry Societies, September 16–17, 2017, Morioka(Poster)

26) An attempt to improve the reactivity of a silanimine-titanium complex and metallacycles derived from the insertion reactions with substrates through the construction of a vacant site at the titanium center
Yuuki Hoshiba, Shun Ohta, Masaaki Okazaki
Joint Meeting of the Tohoku Area Chemistry Societies, September 16–17, 2017, Morioka(Poster)

25) Activation of tertiary amines by cationic haloacetylene-coordinated tetrairon clusters
Ryo Funada, Masashi Matsudaira, Shun Ohta, Masaaki Okazaki
Joint Meeting of the Tohoku Area Chemistry Societies, September 16–17, 2017, Morioka(Poster)

24) Reactivity of a silaimine-bridged dinulcear ruthenium complex toward isocyanides
Shuhei Yamazaki, Masashi Matsudaira, Shun Ohta, Masaaki Okazaki
Joint Meeting of the Tohoku Area Chemistry Societies, September 16–17, 2017, Morioka(Poster)

23) Polymerization of Ethylene with a Titanium Complex Having a Bisindolyl Ligand
Yuuki Kasai, Tomoyuki Toda, kei Nishii, Masaaki Okazaki, Shun Ohta
66th SPSJ Annual Meeting, May 29–31, 2017, Chiba (Poster)

22) Syntheses and reactivities of group 4 transition-metal hydrosilylamido complexes possessing a pentamethylcyclopentadienyl ancillary ligand
Hiroki Hatanaka, Shun Ohta, Masaaki Okazaki
The 97th CSJ Annual Meeting, March 16–19, 2017, Hiyoshi, 3G3-13 (Oral)

21) Cis-1,4-selective Polymerization of Isoprene Using New Simple Catalyst Systems Based on Rare-Earth-Metal Chlorides
Kyosuke Matsumoto, Shun Ohta, Tomoyuki Toda, Kei Nishii
The 97th CSJ Annual Meeting, March 16–19, 2017, Hiyoshi, 2A2-31 (Oral)

20) 環境調和型アンモニア製造へ向けた水素発生触媒および新規アンモニア合成反応の開発
Shun Ohta
H28若手・新任研究者支援事業研究成果発表会, March 2, 2017, Hirosaki, No.49 (Poster Award)

19) cis-1,4-Specific Polymerization of Isoprene by a Simple Catalyst System Based on Rare-Earth-Metal Chlorides
Kyosuke Matsumoto, Itaru Miura, Shun Ohta, Tomoyuki Toda, Kei Nishii
第2回北関東磐越地区化学技術フォーラム, December 10, 2016, Oyama (Poster)

18) アセチレン水素のヨウ素化を経由したビス(アセチレン)四鉄クラスターの多点官能基化
Hayato Igura, Shun Ohta, Masaaki Okazaki
6th CSJ Chemistry Festa, November 14–16, 2016, Tokyo, P8-070 (Poster)

17) 希土類塩化物を用いた触媒系によるイソプレンのcis–1,4–特異性重合
Kyosuke Matsumoto, 三浦周, Shun Ohta, Tomoyuki Toda, Kei Nishii
6th CSJ Chemistry Festa, November 14–16, 2016, Tokyo, P2-068 (Poster)

16) 環境低負荷なエネルギー源であるマグネシウムを用いた窒素分子の触媒的変換反応
Shun Ohta
平成27年度弘前大学理工学研究科研究支援事業最終報告会, September 27, 2016, Hirosaki, No.2 (Oral)

15) Activation of Carbon–Nitrogen Triple Bond of Nitriles by Cationic Polynuclear Ruthenium Clusters
Mai Ikeda, Satoshi Kaneko, Yuhei Tsukahara, Shun Ohta, Masaaki Okazaki
63rd Symposium on Organometallic Chemistry, September 14–16, 2016, Tokyo, P2-02 (Poster)

14) Synthesis, Structure, and Reactivity of an Iridium Complex Carrying a Side-On-Bound Phosphasilene Ligand
Yuya Terauchi, Tetsuaki Oguro, Shun Ohta, Masaaki Okazaki
The 66th Conference of Japan Society of Coordination Chemistry, September 10–12, 2016, Fukuoka, 2Da–06 (Oral)

13) Synthesis, structure, and reactivity of a silanethione-coordinated iridium complex by the reaction of a cationic iridium(I) complex with lithium hydrosilanethiolate
Wataru Taniwaki, Shun Ohta, Masaaki Okazaki
The 96th CSJ Annual Meeting, March 24–27, 2016, Kyotanabe, 2E5-20 (Oral)

12) Reactions of a Silaneimine-coordinated Half-sandwich-type Titanium Complex with Benzophenones and Isomerization of the Products
Ryusuke Ohtani, Shun Ohta, Masaaki Okazaki
The 96th CSJ Annual Meeting, March 24–27, 2016, Kyotanabe, 2E5-15 (Oral)

11) 四鉄上に配位安定化した高活性陽イオン炭素種によるハロゲン化アルキルおよび有機ケイ素化合物の活性化
Wataru Taniwaki, Shun Ohta, Masaaki Okazaki
6th CSJ Chemistry Festa, October 13–15, 2015, Tokyo, P1-050 (Poster)

10) The Lewis acid behavior of a cationic [HCC] subunit semi-stabilized on the tetrairon core toward organosilicon compounds
Wataru Taniwaki, Shun Ohta, Masaaki Okazaki
Joint Meeting of the Tohoku Area Chemistry Societies, September 12–13, 2015, Hirosaki, 2P009 (Poster)

9) Reactivity of a Coordinatively Unsaturated Silanimine Complex of Titanium toward Unsaturated Organic Compounds
Ryusuke Ohtani, Shoya Ebina, Hiroki Ebina, Shun Ohta, Masaaki Okazaki
Joint Meeting of the Tohoku Area Chemistry Societies, September 12–13, 2015, Hirosaki, 2P008 (Poster)

8) Synthesis and reactivities of (hydrosilyl)amido-ligated half-zirconocene and half hafnocene complexes
Hiroki Hatanaka, Shoya Ebina, Shun Ohta, Masaaki Okazaki
Joint Meeting of the Tohoku Area Chemistry Societies, September 12–13, 2015, Hirosaki, P007 (Poster)

7) Introduction of group 15 elements onto the tetrairon-tetracarbon cluster through the nucleophilic substitution reactions by primary amines and phosphines
Hayato Igura, Naotsugu Kudo, Shun Ohta, Masaaki Okazaki
Joint Meeting of the Tohoku Area Chemistry Societies, September 12–13, 2015, Hirosaki, 2P006 (Poster)

6) The C-N triple bond activation of nitriles by cationic ruthenium hydrido clusters
Mai Ikeda, Satoshi Kaneko, Shun Ohta, Masaaki Okazaki
Joint Meeting of the Tohoku Area Chemistry Societies, September 12–13, 2015, Hirosaki, 2P005 (Poster)

5) Activation of terminal alkynes induced by a Lewis acidic carbon center in a tetrairon core
Kazushi Nomiya, Shun Ohta, Masaaki Okazaki
Joint Meeting of the Tohoku Area Chemistry Societies, September 12–13, 2015, Hirosaki, 2P004 (Poster)

4) Synthesis, structure, and reactivity of (hydrosilyl)amidoiridium complexes
Eri IIhara, Shun Ohta, Masaaki Okazaki
Joint Meeting of the Tohoku Area Chemistry Societies, September 12–13, 2015, Hirosaki, 2P003 (Poster)

3) Synthesis and structures of monomeric iridium complexes carrying a side-on-bound phosphasilene ligand
Yuya Terauchi, Tetsuaki Oguro, Shun Ohta, Masaaki Okazaki
Joint Meeting of the Tohoku Area Chemistry Societies, September 12–13, 2015, Hirosaki, 2P001 (Poster)

2) Synthesis of Phosphasilene–Coordinated Iridium Complexes by the Reactions of Vaska–Type Complexes with Lithium (Hydrosilyl)phosphide
Tetsuaki Oguro, Yuya Terauchi, Shun Ohta, and Masaaki Okazaki
62nd Symposium on Organometallic Chemistry, September 7–9, 2015, Suita, P3-48 (Poster)

1) Synthesis and Reactivities of Half-Sandwich-Type Group 4 Metal Complexes Possessing a Silanimine Ligand
Hiroki Hatanaka, Shoya Ebina, Ryusuke Ohtani, Shun Ohta, and Masaaki Okazaki
62nd Symposium on Organometallic Chemistry, September 7–9, 2015, Suita, P2-01 (Poster)