2007 Fiscal Year Final Research Report Summary
Synthesis of novel metal complexes exhibiting multi-stabilities and creation of molecular systems exhibiting multi-functionalities
| Project/Area Number |
17205007
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic chemistry
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| Research Institution | The University of Tokyo |
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Principal Investigator |
NISHIHARA Hiroshi The University of Tokyo, Department of Chemistry, Professor (70156090)
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| Co-Investigator(Kenkyū-buntansha) |
YONEZAWA Tetsu The University of Tokyo, Department of Chemistry, Associate Professor (90284538)
YAMANOI Yoshinori The University of Tokyo, Department of Chemistry, Research Associate (20342636)
KUME Shoko The University of Tokyo, Department of Chemistry, Research Associa (30431894)
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| Project Period (FY) |
2005 – 2007
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| Keywords | Metal complex / Molecular wire / Electron transport / Molecular device / Photochromism / Donor-acceptor interaction / Valence tautomerization / Cluster complex |
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| Research Abstract |
The purpose of this study is to create intelligent molecular systems where the chemical and physical structures and the optical, magnetic and electronic properties are changed reversibly and then to produce "molecular functional devices" by combining the molecular systems with electrode surface. As for □-conjugated redox complex oligomers and polymers, we have succeeded in bottom-up synthesis of one- and three-dimensional oligomer complex molecular wires by step-wise coordination reactions on the surface, and have found the phenomena of redox-conduction along the molecular wires for the first time. Photo-electron conducting molecular wires were also prepared using such molecular wires with terminal porphyrin moieties. As for photochromic complexes, we synthesized ferrocenylspiropyran with an ability to control the memory depth by changing the redox state, bis(ferrocenylethynyl)ethane and its triarylamine derivatives, which cause alteration of electronic communication between terminal redox moieties by photoisomerization, and self-assembled monolayers of ferrocenylazobenzene, which undergoes reversible isomerization of azobenzene moieties with a single green light source by combining with the redox reaction of ferrocene moiety. As for donor-acceptor conjugated molecules, we have found that 1-ferrocenylethynylanthraquinone reacts with proton to cause cyclization reaction to give a pyrilium salt, which shows valence tautomerization with temperature change. We have also found that 1,4-bis(ferrocenylethynyl)anthraquinone undergoes reversible single crystal - single crystal structural changes by absorption of guest molecules. As for heterometal cluster complexes, we synthesized several types of new cluster complexes by the reaction of metalladithiolenes with metal carbonyls. They exhibit unique redox and optical properties.
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[Journal Article] Synthesis of Heterometal Cluster Complexes by the Reaction of Cobaltadichalcogenolato Complexes with Groups 6 and 8 Metal Carbonyls2006
Author(s)
M. Murata, S. Habe, S. Araki, K. Namiki, T. Yamada, N. Nakagawa, T. Nankawa, M. Nihei, J. Mizutani, M. Kurihara, H. Nishihara
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Journal Title
Inorganic. Chemistry. 45(3)
Pages: 1108-1116
Description
「研究成果報告書概要(和文)」より
Peer Reviewed
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[Journal Article] Synthesis of Heterometal Cluster Complexes by the Reaction of Cobaltadichalcogenolato Complexes with with Groups 6 and 8 Metal Carbonyls2006
Author(s)
Masaki Murata, Satoru Habe, Shingo Araki, Kosuke Namiki, Teppei Yamada, Norikiyo, Nakagawa, Takuya Nankawa, Masayuki Nihei, Jun Mizutani, Masato Kurihara, Hiroshi Nishihara
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Journal Title
Inorg. Chem. 45
Pages: 1108-1116
Description
「研究成果報告書概要(欧文)」より
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[Presentation] 銀ロッドの形状と物性2008
Author(s)
森大輔, 米澤徹, 西原寛
Organizer
日本化学会第88会春季年会
Place of Presentation
東京
Year and Date
2008-03-29
Description
「研究成果報告書概要(和文)」より
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[Presentation] GPCによる白金ナノ粒子の分画2007
Author(s)
森大輔, 米澤徹, 角山寛規, 根岸雄一, 佃達哉, 西原寛
Organizer
日本化学会第87回春季年会
Place of Presentation
大阪
Year and Date
2007-03-27
Description
「研究成果報告書概要(和文)」より
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[Presentation] A Photo-sensor with a Cyanobacterial Photosystem I Driven Transistor Via a Molecular Wire2006
Author(s)
Hiroshi NISHIHARA, Yoshinori YAMANOI, Tetsu YONEZAWA, Masaki Murata, Nao TERASAKI, Noritaka YAMAMOTO, Kaoru TAMADA, Mineyuki HATTORI, Takashi HIRAGA, Akihiko TOHRI, Ikutaro SATO, Isao ENAMI, Yasunori INOUE, Satoshi YONEYAMA, Makoto MINAKATA, Tsutomu OHMORI, Makoto SAKAI, Masaaki FUJII
Organizer
Photosynthesis in the Post-genomic Era : Structure and Function of Photosystems
Place of Presentation
Pushchino, Russia
Year and Date
20060820-20060826
Description
「研究成果報告書概要(和文)」より
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[Presentation] Dimensional Control of Conjugated Bis (terpyridine) metal Molecular Wires on a Gold Surface2005
Author(s)
Masaki Murata, Katsuhiko Kanaizuka, Satoshi Muratsugu, Mitsuya Utsuno, Yoshiki Ohba, Fumiyuki Toshimitsu, Yoshihiki Nishimori, Hiroshi Nishihara
Organizer
First International Conference of Chemistry of Coordination Space
Place of Presentation
Okazaki Conference Center, Okazaki, Aichi, Japan
Year and Date
20051114-20051115
Description
「研究成果報告書概要(和文)」より
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[Presentation] 光合成たんぱく質複合体を利用した新規人工光電変換システムへのアプローチ2005
Author(s)
山野井慶徳, 森山佳則, 水野克哉, 米澤徹, 西原寛, 藤利彰彦, 佐藤幾太郎, 井上康則, 寺崎正, 山本典孝, 玉田薫, 平賀隆, 米山賢史, 皆方誠, 大森努, 酒井誠, 藤井正明
Organizer
第51回ポーラログラフィーおよび電気分析化学討論会
Place of Presentation
東京
Year and Date
2005-11-26
Description
「研究成果報告書概要(和文)」より
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[Presentation] 配位空間の化学2005
Author(s)
西原寛
Organizer
第55回錯体化学討論会
Place of Presentation
新潟
Year and Date
2005-09-23
Description
「研究成果報告書概要(和文)」より
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[Presentation] 光合成系複合体を利用した新規人工光電変換システムの構築2005
Author(s)
山野井慶徳, 森山佳則, 米澤徹, 西原寛, 寺崎正, 山本典孝, 玉田薫, 平賀隆, 藤利彰彦, 佳藤幾太郎, 井上康則, 米山賢史, 皆方誠, 大森努, 酒井誠
Organizer
電気化学会第72大会
Place of Presentation
熊本
Year and Date
2005-04-02
Description
「研究成果報告書概要(和文)」より
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