Evaluation of conductance property of molecular wires using spin exchange interaction

• Project/Area Number: 26410090
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Functional solid state chemistry
• Research Institution: Kyoto University
• Principal Investigator: Higashiguchi Kenji 京都大学, 大学院工学研究科合成・生物化学専攻, 助教 (90376583)
• Co-Investigator(Renkei-kenkyūsha): MATSUDA Kenji 京都大学, 大学院工学研究科, 教授 (80262145)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 分子ワイヤ / 減衰定数 / 交換相互作用 / ラジカル / ビラジカル / ニトロニルニトロキシド

Outline of Final Research Achievements

Molecular rods with two nitronyl nitroxide radicals having some regulator unit were synthesized to investigate the decay property of the units. The spin-spin exchange interaction between neutral radicals had a decay constant similar to the molecular conductance. Although the dynamic range was small, weak interaction could evaluate. The biradical having bicyclo[2.2.2]octane showed larger interaction than another biradial having two ethylenes. The difference was caused by orbital-orbital interaction near the cage moiety.

Research Products

• [Journal Article] Bundle Formation of Supramolecular Fibers of Amphiphilic Diarylethene by Depletion Force (2018)
  • Author(s): A. Sakaguchi, K. Higashiguchi, K. Matsuda
  • Journal Title: Chem. Commun. Volume: - Issue: 34 Pages: 4298-4301
  • DOI: 10.1039/c8cc01666f
  • Peer Reviewed
• [Journal Article] Determination of Quantum Yield of Photoreaction in Solution and in Suspension by Global Fitting of Prolonged Change of Concentration (2017)
  • Author(s): K. Higashiguchi、H. Yotsuji、K. Matsuda
  • Journal Title: Chemistry Letters Volume: 46 Issue: 10 Pages: 1564-1566
  • DOI: 10.1246/cl.170673
  • NAID: 130006140024
  • Peer Reviewed
• [Journal Article] Anisotropic Diffusion of Microbeads Surrounded by an Anisotropically Elongated Supramolecular Diarylethene Architecture under Linearly Polarized Light (2017)
  • Author(s): Sakaguchi Akira、Higashiguchi Kenji、Matsuda Kenji
  • Journal Title: ChemPhotoChem Volume: 1 Issue: 11 Pages: 488-492
  • DOI: 10.1002/cptc.201700101
  • Peer Reviewed
• [Journal Article] Phototransformative Supramolecular Assembly of Amphiphilic Diarylethenes Realized by the Combination of Photochromism and Lower Critical Solution Temperature Behavior (2017)
  • Author(s): H. Yotsuji, K. Higashiguchi, R. Sato, Y. Shigeta, K. Matsuda
  • Journal Title: Chem.-Eur. J. Volume: 23 Issue: 60 Pages: 15059-15066
  • DOI: 10.1002/chem.201702202
  • Peer Reviewed
• [Presentation] ビラジカル間の交換相互作用による芳香族ユニットの伝導特性の評価 (2017)
  • Author(s): 溝川翼・東口顕士・松田建児
  • Organizer: 日本化学会第97春季年会
  • Place of Presentation: 慶応義塾大学日吉キャンパス（神奈川）
  • Year and Date: 2017-03-16
• [Presentation] ビラジカル間の交換相互作用による分子ワイヤの減衰定数の評価 (2016)
  • Author(s): 東口顕士・四宮正尭・湯元孝治・溝川 翼・松田建児
  • Organizer: 第27回基礎有機化学討論会
  • Place of Presentation: 広島国際会議場（広島）
  • Year and Date: 2016-09-01
• [Presentation] ビラジカル間の交換相互作用による thiophene-2,5-diyl ユニットのβ値の評価 (2016)
  • Author(s): 溝川翼・東口顕士・松田建児
  • Organizer: 日本化学会第96春季年会
  • Place of Presentation: 同志社大学
  • Year and Date: 2016-03-24