Organic Inorganic Hybrid-Type Spin-polarized Nanoparticle

有机无机混合型自旋极化纳米粒子

• 批准号: 15087101
• 负责人: SUGAWARA Tadashi
• 金额: $ 38.46万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15087101/
• 关键词: spin-polarized wire; gold nanoparticle; nano-gap electrodes; negative magneto-resistance; non-linear conductivity; magnetotactic bacterium; micro-cristalline magnetite; NO-cage compound; スピン分極; 分子ワイヤー; 分子ワイヤーネットワーク; 走磁性細菌

I. Negative magneto-resistance in spin-polarized molecular network connecting gold nano-particles(1) Spin-polarized molecular network composed of spin-polarized wire molecules and gold nanoparticles (d=4 nm) exhibited negative magneto-resistance (4% at 4.2 K, 6 T). (2) A network of a few numbers of nanoparticles was prepared on nano-gap electrodes and it exhibited the I-V characteristic of a Coulomb diamond. (3) Linear type wire molecules, e.g. oligothiophene 21mer (molecular length of 7nm), and three-branched wire molecules were synthesized.II. Coexisting system of conductivity and magnetism in ion radical salt of ETBN (1) Ion radical salt of ETBN exhibited the negative magneto-resistance (-5% at 11K 5T) for the first time as a genuine organic donor radical. (2) Non-linear conductivity was observed in an ion radical salt of the cross-cyclophane-type donor. The mechanism was reveled by X-ray crystal analysis under application of the electric current.III. Magnetic behavior of bio-minerallized nano-magnets in magnetotactic bacteria An assembly of nano-magnetites (d=65nm) bio-minerallized in magnetotactic bacteria exhibited negative magneto-resistance of 5% at 100 K.IV Novel NO-cage compound with high efficiency of photo-decomposition A substituent that induces intersystem-crossing or electron transfer was introduced to N-nitrosoaniline to enhance the quantum yield of photo-decomposition in order to develop versatile NO-cage compounds

一、连接金纳米粒子的自旋极化分子网络中的负磁阻(1)由自旋极化线分子和金纳米粒子(d=4 nm)组成的自旋极化分子网络表现出负磁阻(4% at 4.2K，6T）。 (2)在纳米间隙电极上制备了少量纳米粒子的网络，并表现出库仑金刚石的I-V特性。 (3) 直线型线分子，例如：合成了低聚噻吩21mer（分子长度7nm）和三支线分子。 ETBN离子自由基盐的导电性和磁性共存体系 (1) ETBN离子自由基盐作为真正的有机供体自由基首次表现出负磁阻(-5% at 11K 5T)。 (2)在交叉环芳基供体的离子自由基盐中观察到非线性电导率。通过电流作用下的X射线晶体分析揭示了其机理。趋磁细菌中生物矿化纳米磁体的磁行为趋磁细菌中生物矿化的纳米磁铁矿（d = 65 nm）的组装体在 100 K.IV 时表现出 5% 的负磁阻 新型高效 NO-笼化合物N-亚硝基苯胺中引入了诱导系间窜越或电子转移的取代基，以提高光分解的量子产率光分解以开发多功能的 NO 笼化合物

项目成果

菅原正: "「分子ナノテクノロジー」金ナノ粒子ネットワークで回路をつくる"丸善出版(印刷中). (2004)

菅原正：“分子纳米技术：用金纳米粒子网络创建电路”丸善出版社（2004 年）。

Photochemistry of 2-(1-Naphthyl)-2H-azirines in Matrixes and in Solutions : Wavelength-Dependent C-C and C-N Bond Cleavage of the Azirine Ring

基质和溶液中 2-(1-萘基)-2H-氮丙啶的光化学：氮丙啶环的波长依赖性 C-C 和 C-N 键断裂

• 发表时间: 2005
• 期刊: Journal of the American Chemical Society 127
• 作者: Hiroshi Inui;Shigeru Murata
• 通讯作者: Shigeru Murata

Temporal Emergence of Giant Vesicles Accompanied by Hydrolysis of Ammonium Amphiphiles with a Schiff-base Segment

具有席夫碱片段的铵两亲物水解伴随巨大囊泡的暂时出现

• 发表时间: 2004
• 期刊: Chem.Lett
• 作者: 豊田太郎;高倉克人;菅原正
• 通讯作者: 菅原正

Polyhedral Building Block with Specific Facial Interaction for Conducting Supramolecular Self-Assembly.

具有特定面部相互作用的多面体构建块，用于进行超分子自组装。

• 发表时间: 2004
• 期刊: J.Mat.Chem 14(19)
• 作者: 田邉順;菅原正;ほか6名
• 通讯作者: ほか6名

中崎城太郎, 菅原正ほか5名: "Design and preparation of pyrrole-based spin-polarized donors"Journal of Materials Chemistry. 13. 1011-1022 (2003)

Jotaro Nakazaki、Tadashi Sukawara 等 5 人：“基于吡咯的自旋极化供体的设计与制备”材料化学杂志 13. 1011-1022 (2003)。