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Showing 1–9 of 9 results
Advanced filters: Author: Yasuhiro Kobori Clear advanced filters

  • A fundamental limitation for the practical use of dynamic nuclear polarization using photo-excited triplet state - the need of strictly oriented single crystal - is overcome in this work through the development of fullerene-based polarizing agents.

    • Keita Sakamoto
    • Katsuki Miyokawa
    • Nobuhiro Yanai
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-9

  • The development of hydrogen atom transfer (HAT) in homogeneous catalytic acceptorless dehydrogenation (CAD) with selectivity for thorough aromatization under mild conditions remains challenging. Here, the authors propose a catalyst system that facilitates a double hydrogen atom transfer (HAT) processes for the CAD of inert cycloalkanes at ambient temperature under visible light irradiation.

    • Rahul A. Jagtap
    • Yuki Nishioka
    • Motomu Kanai
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-7

  • Cryptochromes are photoreceptors involved in biological magnetoreception, but the interplay of conformation, electronic coupling, and molecular motion remains poorly understood. Here, time-resolved electron paramagnetic resonance experiments support a role for hydration dynamics control electronic coupling in a cryptochrome.

    • Misato Hamada
    • Tatsuya Iwata
    • Yasuhiro Kobori
    ResearchOpen Access
    Communications Chemistry
    Volume: 4, P: 1-11

  • Singlet fission (SF) can create spin-polarized quintet states in organic systems, but this effect and its potential applications have not been sufficiently explored. Here, authors demonstrate that SF in supramolecular assemblies of pentacene chromophores improves the sensitivity of magnetic resonance of water molecules through dynamic nuclear polarization in a water-glycerol glass.

    • Yusuke Kawashima
    • Tomoyuki Hamachi
    • Nobuhiro Yanai
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-12

  • Materials that display photostimulated luminescence are attractive for multiple applications. Here, photostimulated luminescence is demonstrated in an all-organic blend film, in which a dopant molecule functions as both an electron trap and a light emitter.

    • Manabu Sakurai
    • Ryota Kabe
    • Takashi Tachikawa
    ResearchOpen Access
    Communications Materials
    Volume: 2, P: 1-7

  • Photochemical reduction of CO2 is a significant challenge and many existing methods use catalysts containing rare metals. Now a metal-free version of this reaction—with high selectivity for formate generation over H2 or CO—has been achieved that features a combination of carbazole photosensitizer and organohydride catalyst.

    • Weibin Xie
    • Jiasheng Xu
    • Ryosuke Matsubara
    Research
    Nature Chemistry
    Volume: 15, P: 794-802

  • Singlet fission results in the formation of a pair of triplets, known as a quintet. Here, the authors identify long-lived quintets in dilute pentacene films at room temperature, with lifetimes influenced by intermolecular geometry having implications for the design of triplet-harvesting films.

    • Daphné Lubert-Perquel
    • Enrico Salvadori
    • Christopher W. M. Kay
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-10