Basic research on the first two-dimensional coordination topological insulator

• Project/Area Number: 26708005
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Inorganic chemistry
• Research Institution: The University of Tokyo
• Principal Investigator: Sakamoto Ryota 東京大学, 大学院理学系研究科(理学部), 助教 (80453843)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥24,440,000 (Direct Cost: ¥18,800,000、Indirect Cost: ¥5,640,000); Fiscal Year 2016: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000); Fiscal Year 2015: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000); Fiscal Year 2014: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
• Keywords: トポロジカル絶縁体 / ナノシート / 金属錯体 / トポロジカル相 / ジチオレン / ナノ材料 / 低次元系 / 原子層 / 二次元物質

Outline of Final Research Achievements

"Topological Insulator", abbreviated as TI, is a new phase of matter that shows a spin-polarized metallic nature at the edge. The examples of TIs are restricted to inorganic materials, though, here we try to create the first organic example of two-dimensional (2D) TI. In 2013, we reported on the synthesis of a dithiolene metal complex nanosheet, which then turned out to be a candidate for a 2D-TI.This nanosheet was investigated further, together with other types of nanosheets.

Research Products

• [Int'l Joint Research] University of Utah(米国)
• [Int'l Joint Research] IMDEA(スペイン)
• [Int'l Joint Research] Universitaet Bremen(ドイツ)
• [Int'l Joint Research] Hong Kong Baptist University/Hong Kong Polytechnic University(中国香港)
• [Int'l Joint Research] Hong Kong Baptist University(中国)
• [Journal Article] Three-dimensional graphdiyne as a topological nodal-line semimetal (2018)
  • Author(s): Takafumi Nomura, Tetsuro Habe, Ryota Sakamoto, Mikito Koshino
  • Journal Title: Physical Review Materials Volume: 2 Issue: 5 Pages: 054204-054204
  • DOI: 10.1103/physrevmaterials.2.054204
  • Peer Reviewed
• [Journal Article] Expansion of the Graphdiyne Family: A Triphenylene-Cored Analogue (2018)
  • Author(s): Matsuoka Ryota、Toyoda Ryojun、Shiotsuki Ryo、Fukui Naoya、Wada Keisuke、Maeda Hiroaki、Sakamoto Ryota、Sasaki Sono、Masunaga Hiroyasu、Nagashio Kosuke、Nishihara Hiroshi
  • Journal Title: ACS Applied Materials & Interfaces Volume: 10 Issue: 3 Pages: 2730-2733
  • DOI: 10.1021/acsami.8b00743
  • Peer Reviewed
• [Journal Article] Oxidation-Promoted Interfacial Synthesis of Redox-Active Bis(diimino)nickel Nanosheet (2018)
  • Author(s): Eunice J H Phua, Kuo-Hui Wu, Keisuke Wada, Tetsuro Kusamoto, Hiroaki Maeda, Jian Cao, Ryota Sakamoto, Hiroyasu Masunaga, Sono Sasaki, Jia-Wei Mei, Wei Jiang, Feng Liu, Hiroshi Nishihara
  • Journal Title: Chemistry Letters Volume: 47 Issue: 2 Pages: 126-129
  • DOI: 10.1246/cl.170928
  • NAID: 130006337769
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Bis(dipyrrinato)zinc(II) Complex Chiroptical Wires: Exfoliation into Single Strands and Intensification of Circularly Polarized Luminescence (2017)
  • Author(s): Aoki Risa、Toyoda Ryojun、Koegel Julius F.、Sakamoto Ryota、Kumar Jatish、Kitagawa Yasutaka、Harano Koji、Kawai Tsuyoshi、Nishihara Hiroshi
  • Journal Title: Journal of the American Chemical Society Volume: 139 Issue: 45 Pages: 16024-16027
  • DOI: 10.1021/jacs.7b07077
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Bis(aminothiolato)nickel nanosheet as a redox switch for conductivity and an electrocatalyst for the hydrogen evolution reaction (2017)
  • Author(s): Sun Xinsen、Wu Kuo-Hui、Sakamoto Ryota、Kusamoto Tetsuro、Maeda Hiroaki、Ni Xiaojuan、Jiang Wei、Liu Feng、Sasaki Sono、Masunaga Hiroyasu、Nishihara Hiroshi
  • Journal Title: Chemical Science Volume: 8 Issue: 12 Pages: 8078-8085
  • DOI: 10.1039/c7sc02688a
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Mechano-, thermo-, solvato-, and vapochromism in bis(acetato-κ1O)[4′-(4-(diphenylamino)phenyl)](2,2′:6′,2′′-terpyridine-κ3N,N′,N′′)zinc(ii) and its polymer (2017)
  • Author(s): Tsukamoto Takamasa、Aoki Risa、Sakamoto Ryota、Toyoda Ryojun、Shimada Masaki、Hattori Yohei、Kitagawa Yasutaka、Nishibori Eiji、Nakano Masayoshi、Nishihara Hiroshi
  • Journal Title: Chemical Communications Volume: 53 Issue: 70 Pages: 9805-9808
  • DOI: 10.1039/c7cc05022d
  • Peer Reviewed
• [Journal Article] β-IminoBODIPY oligomers: facilely accessible π-conjugated luminescent BODIPY arrays (2017)
  • Author(s): Tsuchiya Mizuho、Sakamoto Ryota、Shimada Masaki、Yamanoi Yoshinori、Hattori Yohei、Sugimoto Kunihisa、Nishibori Eiji、Nishihara Hiroshi
  • Journal Title: Chemical Communications Volume: 53 Issue: 54 Pages: 7509-7512
  • DOI: 10.1039/c7cc03279j
  • Peer Reviewed
• [Journal Article] Conducting π-Conjugated Bis(iminothiolato)nickel Nanosheet (2017)
  • Author(s): Xinsen Sun, Kuo-Hui Wu, Ryota Sakamoto, Tetsuro Kusamoto, Hiroaki Maeda, Hiroshi Nishihara
  • Journal Title: Chemistry Letters Volume: 46 Issue: 8 Pages: 1072-1075
  • DOI: 10.1246/cl.170382
  • NAID: 130005906987
  • Peer Reviewed
• [Journal Article] A simple zinc (ii) complex that features multi-functional luminochromism induced by reversible ligand dissociation (2017)
  • Author(s): Takamasa Tsukamoto, Risa Aoki, Ryota Sakamoto, Ryojun Toyoda, Masaki Shimada, Yohei Hattori, Mizuki Asaoka, Yasutaka Kitagawa, Eiji Nishibori, Masayoshi Nakano, Hiroshi Nishihara
  • Journal Title: Chemical Communications Volume: 53 Issue: 35 Pages: 3657-3660
  • DOI: 10.1002/chem.201700201
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Coordination nanosheets (CONASHs): strategies, structures and functions (2017)
  • Author(s): Sakamoto Ryota、Takada Kenji、Pal Tigmansu、Maeda Hiroaki、Kambe Tetsuya、Nishihara Hiroshi
  • Journal Title: Chemical Communications Volume: 53 Issue: 43 Pages: 5781-5801
  • DOI: 10.1039/c7cc00810d
  • Peer Reviewed
• [Journal Article] Coordination Nanosheets Based on Terpyridine-zinc(II) complexes: As Photoactive Host Materials (2017)
  • Author(s): Takamasa Tsukamoto, Kenji Takada, Ryota Sakamoto, 他18名
  • Journal Title: J. Am. Chem. Soc. Volume: 139 Issue: 15 Pages: 5359-5366
  • DOI: 10.1021/jacs.6b12810
  • Peer Reviewed
• [Journal Article] Photofunctionality in Porphyrin-Hybridized Bis(dipyrrinato)zinc(II) Complex Micro- and Nanosheets (2017)
  • Author(s): *Ryota Sakamoto, Toshiki Yagi, Ken Hoshiko, Shinpei Kusaka, Ryota Matsuoka, Hiroaki Maeda, Zheng Liu, Qian Liu, *Wai-Yeung Wong, *Hiroshi Nishihara
  • Journal Title: Angew. Chem. Int. Ed. Volume: 56 Issue: 13 Pages: 3526-3530
  • DOI: 10.1002/anie.201611785
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Crystalline Graphdiyne Nanosheets Produced at a Gas/Liquid or Liquid/Liquid Interface (2017)
  • Author(s): Ryota Matsuoka, *Ryota Sakamoto, Ken Hoshiko, Sono Sasaki, Hiroyasu Masunaga, Kosuke Nagashio, *Hiroshi Nishihara
  • Journal Title: J. Am. Chem. Soc. Volume: 139 Issue: 8 Pages: 3145-3152
  • DOI: 10.1021/jacs.6b12776
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] A simple zinc(II) complex that features multi‐functional luminochromism induced by reversible ligand dissociation (2017)
  • Author(s): Takamasa Tsukamoto, Risa Aoki, Ryota Sakamoto, Ryojun Toyoda, Masaki Shimada, Yohei Hattori, Mizuki Asaoka, Yasutaka Kitagawa, Eiji Nishibori, Masayoshi Nakano, Hiroshi Nishihara
  • Journal Title: Chem. Commun. Volume: 53 Issue: 26 Pages: 3657-3660
  • DOI: 10.1039/c6cc10190a
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Interfacial synthesis of electrofunctional coordination nanowires and nanosheets of bis(terpyridine) complexes (2017)
  • Author(s): Hiroaki Maeda, Ryota Sakamoto, *Hiroshi Nishihara
  • Journal Title: Coord. Chem. Rev. Volume: 印刷中 Pages: 139-149
  • DOI: 10.1016/j.ccr.2017.02.013
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Bis(dipyrrinato)zinc(II) Complexes: Emission in the Solid State (2016)
  • Author(s): M. Tsuchiya, R. Sakamoto, M. Shimada, Y. Yamanoi, Y. Hattori, K. Sugimoto, E. Nishibori, H. Nishihara
  • Journal Title: Inorg. Chem. Volume: 55 Issue: 12 Pages: 5732-5734
  • DOI: 10.1021/acs.inorgchem.6b00431
  • Peer Reviewed
• [Journal Article] Electron Transport of Bis(terpyridine)iron(II) Complex Wire on a Semiconducting Electrode (2016)
  • Author(s): Hiroaki Maeda, Ryota Sakamoto, Hiroshi Nishihara
  • Journal Title: J. Electroanal. Chem. Volume: 779 Pages: 112-116
  • DOI: 10.1016/j.jelechem.2016.04.027
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Heteroleptic [Bis (oxazoline)](dipyrrinato) zinc (II) Complexes: Bright and Circularly Polarized Luminescence from an Originally Achiral Dipyrrinato Ligand (2016)
  • Author(s): Julius F Kogel, Shinpei Kusaka, Ryota Sakamoto, Toshiki Iwashima, Mizuho Tsuchiya, Ryojun Toyoda, Ryota Matsuoka, Takamasa Tsukamoto, Junpei Yuasa, Yasutaka Kitagawa, Tsuyoshi Kawai, Hiroshi Nishihara
  • Journal Title: Angewandte Chemie International Edition Volume: 55 Issue: 4 Pages: 1377-1381
  • DOI: 10.1002/anie.201509411
  • Peer Reviewed
• [Journal Article] Bright Solid-State Emission of Disilane-Bridged Donor-Acceptor-Donor and Acceptor-Donor-Acceptor Chromophores (2016)
  • Author(s): M. Shimada, M. Tsuchiya, R. Sakamoto, Y. Yamanoi, E. Nishibori, K. Sugimoto, H. Nishihara
  • Journal Title: Angew. Chem. Int. Ed. Volume: 55 Issue: 9 Pages: 3022-3026
  • DOI: 10.1002/anie.201509380
  • Peer Reviewed
• [Journal Article] Electrochemical fabrication of one-dimensional porphyrinic wires on electrodes (2016)
  • Author(s): Suzaliza Mustafar, Kuo-Hui Wu, Ryojun Toyoda, Kenji Takada, Hiroaki Maeda, Mariko Miyachi, Ryota Sakamoto, Hiroshi Nishihara
  • Journal Title: Inorg. Chem. Front. Volume: 3 Issue: 3 Pages: 370-375
  • DOI: 10.1039/c5qi00239g
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Dissymmetric Bis(dipyrrinato)zinc(II) Complexes: Rich Variety and Bright Red to Near-Infrared Luminescence with a Large Pseudo Stokes Shift (2016)
  • Author(s): Ryota Sakamoto, Toshiki Iwashima, Julius F. Kögel, Shinpei Kusaka, Mizuho Tsuchiya, Yasutaka Kitagawa, Hiroshi Nishihara
  • Journal Title: J. Am. Chem. Soc. Volume: 138 Issue: 17 Pages: 5666-5677
  • DOI: 10.1021/jacs.6b02128
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] The coordination nanosheet (CONASH) (2016)
  • Author(s): Ryota Sakamoto, Kenji Takada, Xinsen Sun, Tigmansu Pal, Takamasa Tsukamoto, Eunice Jia Han Phua, Amalia Rapakousiou, Ken Hoshiko, Hiroshi Nishihara
  • Journal Title: Coord. Chem. Rev. Volume: 未決定 Pages: 118-128
  • DOI: 10.1016/j.ccr.2015.12.001
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Coordination Programming of Two-dimensional Metal Complex Frameworks (2016)
  • Author(s): Hiroaki Maeda, Ryota Sakamoto, Hiroshi Nishihara
  • Journal Title: Langmuir Volume: 32 Issue: 11 Pages: 2527-2538
  • DOI: 10.1021/acs.langmuir.6b00156
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Heteroleptic bis(dipyrrinato)copper(II) and nickel(II) complexes (2015)
  • Author(s): Ryojun Toyoda, Mizuho Tsuchiya, Ryota Sakamoto, Ryota Matsuoka, Kuo-Hui Wu, Yohei Hattori, Hiroshi Nishihara
  • Journal Title: Dalton Transactions Volume: in press Issue: 34 Pages: 15103-15106
  • DOI: 10.1039/c5dt00724k
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Interfacial Synthesis of Electrically Palladium Bis(dithiolene) Complex Nanosheet (2015)
  • Author(s): Tigmansu Pal, Mao Lin Foo, Tetsuro Kusamoto, Tetsuya Kambe, Ryota Matsuoka, Ryota Sakamoto, Hiroshi Nishihara
  • Journal Title: ChemPlusChem Volume: 80 Issue: 8 Pages: 1255-1258
  • DOI: 10.1002/cplu.201500206
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Bis(terpyridine)iron(II) Complex Wires with a Bithiophene Linker for Superior Long Range Electron Transport (2015)
  • Author(s): Aayushi Bajpayee, Hiraoki Maeda, Shunsuke Katagiri, Ryota Sakamoto, Hiroshi Nishihara
  • Journal Title: Chem. Lett. Volume: 44 Issue: 9 Pages: 1211-1213
  • DOI: 10.1246/cl.150519
  • NAID: 130005096880
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Rapid Electron Transport Phenomenon in the Bis(terpyridine)metal Complex Wire: Marcus Theory and Electrochemical Impedance Spectroscopy Study (2015)
  • Author(s): Ryota Sakamoto, Hiroaki Maeda, Hiroshi Nishihara
  • Journal Title: J. Phys. Chem. Lett. Volume: 6 Issue: 19 Pages: 3821-3826
  • DOI: 10.1021/acs.jpclett.5b01725
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] New aspects in bis and tris(dipyrrinato)metal complexes: bright luminescence, self-assembled nanoarchitectures, and materials applications (2015)
  • Author(s): Ryota Sakamoto, Toshiki Iwashima, Tsuchiya Mizuho, Ryojun Toyoda, Ryota Matsuoka, Julius F. Koegel, Shinpei Kusaka, Ken Hoshiko, Toshiki Yagi, Tatsuhiro Nagayama, Hiroshi Nishihara
  • Journal Title: J. Mater. Chem. A Volume: 3 Issue: 30 Pages: 15357-15371
  • DOI: 10.1039/c5ta02040a
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Electron Transport Dynamics in Redox-Molecule-Terminated Branched Oligomer Wires on Au(111) (2015)
  • Author(s): Ryota Sakamoto, Shunsuke Katagiri, Hiroaki Maeda, Yoshihiko Nishimori, Seiji Miyashita, Hiroshi Nishihara
  • Journal Title: J. Am. Chem. Soc. Volume: 137 Issue: 2 Pages: 734-741
  • DOI: 10.1021/ja509470w
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] A photofunctional bottom-up bis(dipyrrinato)zinc(II) complex nanosheet (2015)
  • Author(s): Ryota Sakamoto, Ken Hoshiko, Qian Liu, Toshiki Yagi, Tatsuhiro Nagayama, Shinpei Kusaka, Mizuho Tsuchiya, Yasutaka Kitagawa, Wai-Yeung Wong, Hiroshi Nishihara
  • Journal Title: Nature Commun. 2015, 6, Volume: 6 Issue: 1 Pages: 6713-6713
  • DOI: 10.1038/ncomms7713
  • Peer Reviewed / Open Access
• [Journal Article] Modulation of Electronic State of π-Conjugated Nickelladithiolene Complex Nanosheet (2015)
  • Author(s): Tetsuya Kambe, Tetsuro Kusamoto, Ryota Sakamoto, Hiroshi Nishihara
  • Journal Title: Macromol. Symp. Volume: 351 Issue: 1 Pages: 78-80
  • DOI: 10.1002/masy.201300127
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Bis(dipyrrinato)metal(II) coordination polymers: Crystallization, exfoliation into single wires, and electric conversion ability (2015)
  • Author(s): Ryota Matsuoka, Ryojun Toyoda, Ryota Sakamoto, Mizuho Tsuchiya, Ken Hoshiko, Tatsuhiro Nagayama, Yoshiyuki Nonoguchi, Kunihisa Sugimoto, Eiji Nishibori, Tsuyoshi Kawai, Hiroshi Nishihara
  • Journal Title: Chemical Science Volume: in press Issue: 5 Pages: 2853-2858
  • DOI: 10.1039/c5sc00273g
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Electrochromic Bis(terpyridine)Iron(II) Complex Nanosheets (2015)
  • Author(s): Kenji Takada, Ryota Sakamoto, Shi-Ting Yi, Shunsuke Katagiri, Tetsuya Kambe, Hiroshi Nishihara
  • Journal Title: J. Am. Chem. Soc. Volume: 137 Issue: 14 Pages: 4681-4689
  • DOI: 10.1021/ja510788b
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Synthesis, Characterization, and Physical Properties of Oligo(1-(N,N-dimethylamino)pyrrole)s and Their Doped Forms, Precursors of Candidates for Molecular Flat-band Ferromagnets (2015)
  • Author(s): Y. Yamanoi, K. Takahashi, T. Hamada, N. Ohshima, M. Kurashina, Y. Hattori, T. Kusamoto, R. Sakamoto, M. Miyachi, and H. Nishihara
  • Journal Title: Journal of Materials Chemistry C Volume: 3 Issue: 17 Pages: 1-1
  • DOI: 10.1039/c4tc02941k
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] 金属錯体のナノシート化、光電変換効率向上とその期待される応用 (2015)
  • Author(s): 坂本 良太、塚本 孝政、岩嶋 俊輝、西原 寛
  • Journal Title: マテリアルステージ Volume: 15 Pages: 41-45
  • Acknowledgement Compliant
• [Journal Article] 機能性「ボトムアップ型」金属錯体ナノシート (2015)
  • Author(s): 坂本 良太、塚本 孝政、高田 健司、西原 寛
  • Journal Title: 触媒 Volume: 57 Pages: 362-367
  • Acknowledgement Compliant
• [Journal Article] Meso-N-arylamino- and N,N-diarylaminoporphyrinoids: Syntheses, Properties, and Applications (2015)
  • Author(s): Ryota Sakamoto, Suzaliza Mustafar, Hiroshi Nishihara
  • Journal Title: J. Porphyr. Phthalocya. Volume: 19 Issue: 01-03 Pages: 21-31
  • DOI: 10.1142/s1088424615500091
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] π-Conjugated bis(terpyridine)metal complex molecular wires (2015)
  • Author(s): Ryota Sakamoto, Wu Kuo-Hui, Ryota Matsuoka, Hiroaki Maeda, Hiroshi Nishihara
  • Journal Title: Chem. Soc. Rev. Volume: in press Issue: 21 Pages: 7698-7714
  • DOI: 10.1039/c5cs00081e
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Ordered Alignment of a One-Dimensional π-Conjugated Nickel Bis(dithiolene) Complex Polymer Produced via a Liquid-Liquid Interfacial Reaction (2014)
  • Author(s): Ryota Matsuoka, Ryota Sakamoto, Tetsuro Kusamoto, Tetsuya Kambe, Kenji Takada, Hiroshi Nishihara
  • Journal Title: Chemical Communications Volume: 50 Issue: 60 Pages: 8137-8139
  • DOI: 10.1039/c4cc02022g
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Redox Control and High Conductivity of Nickel Bis(dithiolene) Complex π–Nanosheet: A Potential Organic Two-Dimensional Topological Insulator (2014)
  • Author(s): T. Kambe, R. Sakamoto, T. Kusamoto, T. Pal, N. Fukui, K. Hoshiko, T. Shimojima, Z. Wang, K. Ishizaka, S. Hasegawa, F. Liu, and H. Nishihara
  • Journal Title: Journal of the American Chemical Society Volume: 136 Issue: 41 Pages: 14357-14360
  • DOI: 10.1021/ja507619d
  • Peer Reviewed
• [Journal Article] 機能性「ボトムアップ型」金属錯体ナノシート (2014)
  • Author(s): 坂本 良太、永山 達大、西原 寛
  • Journal Title: 化学工業 Volume: 65 Pages: 944-948
  • Acknowledgement Compliant
• [Presentation] Bottom-up synthesis of functional molecule-based nanosheets (2018)
  • Author(s): Ryota Sakamoto
  • Organizer: International Winterschool on Electronic Properties of Novel Materials (IWEPNM 2018)
  • Int'l Joint Research / Invited
• [Presentation] 金属錯体を基盤とする機能性低次元系のボトムアップ創製 (2016)
  • Author(s): 坂本 良太
  • Organizer: 日本化学会 第96春季年会
  • Place of Presentation: 同志社大学京田辺キャンパス（京都府京田辺市）
  • Year and Date: 2016-03-25
  • Invited
• [Presentation] 有機ー無機ハイブリッドナノシートのボトムアップ合成と機能性ナノ材料への応用 (2016)
  • Author(s): 坂本 良太
  • Organizer: 日本物理学会 第71回年次大会
  • Place of Presentation: 宮城学院大学（宮城県仙台市）
  • Year and Date: 2016-03-19
  • Invited
• [Presentation] 有機ー無機ハイブリッドナノシートのボトムアップ合成と機能性ナノ材料への応用 (2016)
  • Author(s): 坂本 良太
  • Organizer: 日本物理学会 第71回年次大会
  • Place of Presentation: 東北学院大学泉キャンパス（宮城県仙台市）
  • Year and Date: 2016-02-20
  • Invited
• [Presentation] New Aspects in Dipyrrin-Metal Complexes: From Molecular Science to Low-Dimensional Molecular Assemblies (2016)
  • Author(s): Ryota Sakamoto
  • Organizer: International Symposium on Pure & Applied Chemistry (ISPAC) 2016
  • Int'l Joint Research / Invited
• [Presentation] Functional "bottom-up" metal complex nanosheets (2016)
  • Author(s): Ryota Sakamoto
  • Organizer: 2016 Kumamoto Symposium on Two Dimensional Nanomaterials (2016KST)
  • Place of Presentation: 熊本大学黒髪キャンパス（熊本県熊本市）
  • Invited
• [Presentation] A photofunctional “bottom-up” bis(dipyrrinato)zinc(II) complex nanosheet (2015)
  • Author(s): Ryota Sakamoto
  • Organizer: The 2015 International Chemical Congress of Pacific Basin Societies (Pacifichem)
  • Place of Presentation: アメリカ合衆国（ホノルル）
  • Year and Date: 2015-12-15
  • Invited
• [Presentation] A photofunctional “bottom-up” bis(dipyrrinato)zinc(II) complex nanosheet (2015)
  • Author(s): Ryota Sakamoto
  • Organizer: The 2015 International Chemical Congress of Pacific Basin Societies (Pacifichem)
  • Place of Presentation: Hilton Hawaiian Village (United States, Honolulu)
  • Year and Date: 2015-12-13
  • Int'l Joint Research / Invited
• [Presentation] Photofunctional bis(dipyrrinato)metal complex nanowire and nanosheet (2015)
  • Author(s): Ryota Sakamoto
  • Organizer: 1st International Caparica Christmas Congress on Translational Chemistry
  • Place of Presentation: Hotel Aldeia dos Capuchos Golf & SPA (Portugal, Caparica)
  • Year and Date: 2015-12-05
  • Int'l Joint Research / Invited
• [Presentation] Photofunctional bis(dipyrrinato)metal complex nanowire and nanosheet (2015)
  • Author(s): Ryota Sakamoto
  • Organizer: 1st International Caparica Christmas Congress on Translational Chemistry
  • Place of Presentation: ポルトガル（コスタダカパリカ）
  • Year and Date: 2015-12-04
  • Invited
• [Presentation] Functional "bottom-up" metal complex nanosheets (2015)
  • Author(s): Ryota Sakamoto
  • Organizer: International Conference on Small Science (ICSS 2015)
  • Place of Presentation: タイ（プーケット）
  • Year and Date: 2015-11-13
  • Invited
• [Presentation] Functional "bottom-up" metal complex nanosheets (2015)
  • Author(s): Ryota Sakamoto
  • Organizer: International Conference on Small Science (ICSS 2015)
  • Place of Presentation: Holiday Inn Resort Phuket (Thailand, Phuket)
  • Year and Date: 2015-11-02
  • Int'l Joint Research / Invited
• [Presentation] LOW-DIMENSIOANAL MATERIALS BASED ON COORDINATION COMPOUNDS (2015)
  • Author(s): Ryota Sakamoto
  • Organizer: 10th China-Japan Joint Symposium on Metal Cluster Compounds (CJSMCC-2015)
  • Place of Presentation: 中国（福州）
  • Year and Date: 2015-10-23
  • Invited
• [Presentation] LOW-DIMENSIOANAL MATERIALS BASED ON COORDINATION COMPOUNDS (2015)
  • Author(s): Ryota Sakamoto
  • Organizer: 10th China-Japan Joint Symposium on Metal Cluster Compounds (CJSMCC-2015)
  • Place of Presentation: Fuzhou Hotel (China, Fuzhou)
  • Year and Date: 2015-10-23
  • Int'l Joint Research / Invited
• [Presentation] 金属錯体を基盤とする機能性低次元系の創製 (2015)
  • Author(s): 坂本 良太
  • Organizer: 第65回錯体化学討論会
  • Place of Presentation: 奈良女子大学（奈良県奈良市）
  • Year and Date: 2015-09-25
  • Invited
• [Presentation] Photofunctional bis(dipyrrinato)metal complex nanowire and nanosheet (2015)
  • Author(s): Ryota Sakamoto
  • Organizer: The 2nd Japan-Germany Joint Symposium on Coordination Chemistry,
  • Place of Presentation: 奈良女子大学（奈良県奈良市）
  • Year and Date: 2015-09-23
  • Invited
• [Presentation] 異種界面を利用した機能性「ボトムアップ型」ナノシートの創成 (2015)
  • Author(s): 坂本 良太
  • Organizer: 第64回高分子討論会
  • Place of Presentation: 東北大学片平キャンパス（宮城県仙台市）
  • Year and Date: 2015-09-22
  • Invited
• [Presentation] Functional "bottom-up" metal complex nanosheets (2015)
  • Author(s): Ryota Sakamoto
  • Organizer: 第65回錯体化学討論会 特別シンポジウム「New Aspects in Two-dimensional Materials -Focusing on Fusion with Coordination Chemistry-
  • Place of Presentation: 奈良女子大学（奈良県奈良市）
  • Year and Date: 2015-09-19
  • Invited
• [Presentation] 異種界面を利用した機能性「ボトムアップ型」ナノシートの創成 (2015)
  • Author(s): 坂本 良太
  • Organizer: 第64回高分子討論会
  • Place of Presentation: 東北大学青葉キャンパス（宮城県仙台市）
  • Year and Date: 2015-09-13
  • Invited
• [Presentation] A photofunctional bottom-up bis(dipyrrinato)zinc(II) complex nanosheet (2015)
  • Author(s): Ryota Sakamoto
  • Organizer: 4th International Symposium on Energy Challenges and Mechanics (ECM4) - working on small scales
  • Place of Presentation: イギリス（アバディーン）
  • Year and Date: 2015-08-13
  • Invited
• [Presentation] A photofunctional bottom-up bis(dipyrrinato)zinc(II) complex nanosheet (2015)
  • Author(s): Ryota Sakamoto
  • Organizer: 4th International Symposium on Energy Challenges and Mechanics (ECM4) - working on small scales
  • Place of Presentation: Hilton Aberdeen Treetops (United Kingdom, Aberdeen)
  • Year and Date: 2015-08-11
  • Int'l Joint Research / Invited
• [Presentation] Functional One-Dimensional Coordination Polymers (2015)
  • Author(s): Ryota Sakamoto
  • Organizer: The Third China-Japan Joint Symposium on Inorganic and Nanomaterial Science
  • Place of Presentation: 中国（北京）
  • Year and Date: 2015-06-13
  • Invited
• [Presentation] Functional One-Dimensional Coordination Polymers (2015)
  • Author(s): Ryota Sakamoto
  • Organizer: The Third China-Japan Joint Symposium on Inorganic and Nanomaterial Science
  • Place of Presentation: Tsinghua University (China, Beijing)
  • Year and Date: 2015-06-02
  • Int'l Joint Research / Invited
• [Presentation] 金属錯体低次元系の構築と物性 (2015)
  • Author(s): 坂本 良太
  • Organizer: 第2回東北大学リーディング大学院研究会「金属錯体の固体物性最前線‐金属錯体と固体物性物理と生物物性の連携新領域をめざして‐」
  • Place of Presentation: 東北大学青葉キャンパス（宮城県仙台市）
  • Year and Date: 2015-02-21
  • Invited
• [Presentation] 金属錯体低次元系のボトムアップ合成と機能発現 (2015)
  • Author(s): 坂本 良太
  • Organizer: 電気学会 新しい原子分子組織化物質・材料創出に向けた光・量子ビーム応用技術調査専門委員会
  • Place of Presentation: 東京理科大学神楽坂キャンパス（東京都新宿区）
  • Invited
• [Presentation] 省エネルギーおよびエネルギー創出を担う「ボトムアップ型」ナノシート (2015)
  • Author(s): 坂本 良太
  • Organizer: 一般財団法人 エヌエフ基金 第4回(2015年度) 研究発表会
  • Place of Presentation: 学士会館（東京都千代田区）
  • Invited
• [Presentation] Bottom-up molecular wires and sheets for artificial photosynthesis (2014)
  • Author(s): Ryota Sakamoto
  • Organizer: 2014 International Conference on Artificial Photosynthesis (ICARP2014)
  • Place of Presentation: 淡路夢舞台（兵庫県淡路市）
  • Year and Date: 2014-11-25
  • Int'l Joint Research / Invited
• [Presentation] Functional Bottom-Up Metal Complex Nanosheets (2014)
  • Author(s): Ryota Sakamoto, Tatsuhiro Nagayama, Hiroshi Nishihara
  • Organizer: Vietnam Malaysia International Chemical Congress (VMICC)
  • Place of Presentation: Hanoi Daewoo Hotel (Vietnam, Hanoi)
  • Year and Date: 2014-11-06
  • Int'l Joint Research / Invited
• [Presentation] Functional Bottom-Up Metal Complex Nanosheets (2014)
  • Author(s): Ryota Sakamoto, Tatsuhiro Nagayama, Hiroshi Nishihara
  • Organizer: 18th Malaysian International Chemical Congress (18MICC)
  • Place of Presentation: Putra World Trade Centre (Malaysia, Kuala Lumpur)
  • Year and Date: 2014-11-03
  • Int'l Joint Research / Invited
• [Presentation] Brightly Luminescent π-Extended Dipyrrin Complexes (2014)
  • Author(s): Ryota Sakamoto, Shinpei Kusaka, Mizuho Tsuchiya, Hiroshi Nishihara
  • Organizer: 41st International Conference on Coordination Chemistry (ICCC-41)
  • Place of Presentation: Suntec Singapore International Convention and Exhibition Centre (Singapore, Singapore)
  • Year and Date: 2014-07-21
  • Int'l Joint Research / Invited
• [Presentation] Metal Complex Nanowires and Nanosheets Aiming at Photosynthetic Antenna Models (2014)
  • Author(s): Ryota Sakamoto
  • Organizer: Tenth International Workshop on Supramolecular Nanoscience of Chemically Programmed Pigments (SNCPP14)
  • Place of Presentation: 立命館大学びわこ・くさつキャンパス（滋賀県草津市）
  • Year and Date: 2014-05-30
  • Int'l Joint Research / Invited
• [Presentation] 光機能性「ボトムアップ型」金属錯体ナノシート・ナノワイヤ (2014)
  • Author(s): 坂本 良太
  • Organizer: 日本化学会研究会「低次元系光機能材料研究会」第３回研究講演会―低次元系光機能材料と人工光合成―
  • Place of Presentation: 日本化学会（東京都文京区）
  • Year and Date: 2014-05-08
  • Invited
• [Book] 二次元物質の科学 (2017)
  • Author(s): 日本化学会
  • Total Pages: 224
  • Publisher: 化学同人
  • ISBN: 9784759813852
• [Patent(Industrial Property Rights)] 光電変換特性を有するジピリン金属錯体シート及びその製造方法 (2014)
  • Inventor(s): 坂本 良太, 西原 寛, 星子 健, 獅野 裕一, その他2名
  • Industrial Property Rights Holder: 坂本 良太, 西原 寛, 星子 健, 獅野 裕一, その他2名
  • Industrial Property Rights Type: 特許
  • Patent Publication Number: 2015-203085
  • Filing Date: 2014-04-14
  • Acquisition Date: 2015-12-15
• [Patent(Industrial Property Rights)] エレクトロクロミックシート及びその製造方法 (2014)
  • Inventor(s): 坂本 良太, 西原 寛, 高田 健司, 獅野 裕一
  • Industrial Property Rights Holder: 坂本 良太, 西原 寛, 高田 健司, 獅野 裕一
  • Industrial Property Rights Type: 特許
  • Patent Publication Number: 2015-203812
  • Filing Date: 2014-04-14
  • Acquisition Date: 2015-12-21