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Showing 1–9 of 9 results
Advanced filters: Author: Hidehiro Uekusa Clear advanced filters

  • A theory has suggested that mechanical deformation in helicenes with spring-like backbones could effectively modulate both conductance and thermopower in molecule electronics. Fujii et al. verify this using a three-dimensional carbohelicene-based break-junction, demonstrating a thermopower of −44 μV/K.

    • Shintaro Fujii
    • Futo Morita
    • Ken Tanaka
    ResearchOpen Access
    Nature Communications
    Volume: 17, P: 1-10

  • Mechanical motions of molecular crystals have been limited to in-place movement or slow crawling. Here, the authors describe chiral azobenzene crystals that walk or roll quickly forward in response to heating or cooling, offering new modes of material locomotion.

    • Takuya Taniguchi
    • Haruki Sugiyama
    • Hideko Koshima
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-8

  • Covalent organic frameworks (COFs) have wide applications but are difficult to enhance crystallinity. Here, the authors show COFs with 2.5-dimensional skeletons. The COFs attain planar shapes useful for applications, large crystal sizes of above 0.1 mm, and better CO2 separation properties over previous organic porous materials.

    • Tomoki Kitano
    • Syunto Goto
    • Yoichi Murakami
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-10

  • The [2+2+2] cyclotrimerization of two distinct alkynes and alkenes to form six-membered carbocycles is typically constrained by competing β-hydride elimination, low stereocontrol and the need to add reagents slowly. Now, a rhodium-catalysed three-component [2+2+2] cyclotrimerization with excellent chemo-, regio- and stereocontrol is reported that does not require any special operations. The utility of the process is shown and mechanistic studies probe the origins of the selectivity.

    • Kohei Fujii
    • Yuki Nagashima
    • Ken Tanaka
    Research
    Nature Synthesis
    Volume: 1, P: 365-375

  • Soft-crystals are molecular solids with highly ordered structures. Here, authors report the soft-crystal copolymerization of green-luminescent Tb(III) and yellow-luminescent Dy(III) complexes, and study the long-range energy transfer from one crystal to the other.

    • Pedro Paulo Ferreira da Rosa
    • Yuichi Kitagawa
    • Yasuchika Hasegawa
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-8

  • Topological edge states can emerge not only in a fermionic electron system but also in a bosonic system. Here, Nawa et al. report topologically nontrivial triplon bands in a two-dimensional dimerized quantum antiferromagnet Ba2CuSi2O6Cl2, suggesting a bosonic realization of the coupled Su-Schrieffer-Heeger model.

    • Kazuhiro Nawa
    • Kimihiko Tanaka
    • Hidekazu Tanaka
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-8