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Showing 1–6 of 6 results
Advanced filters: Author: Clifford R. Bowers Clear advanced filters

  • Single-molecule magnets are clusters of metal ions linked together by organic bridges, with properties typically arising from exchange coupling of unpaired metal electrons. In mixed-valence systems, another magnetic mechanism involving itinerant electrons can also occur and induce a high-spin ground state. Now, such electron delocalization has been observed through an imidazolate bridge — a common linker in metal-organic architectures — which may enable the construction of higher spin clusters or three-dimensional magnets.

    • Bettina Bechlars
    • Deanna M. D'Alessandro
    • Jeffrey R. Long
    Research
    Nature Chemistry
    Volume: 2, P: 362-368

  • The cleavage of C–C bonds in hydrocarbons is traditionally entrusted to precious metal catalysts, whereas common non-reducible oxides are considered unreactive. Now, the authors report nanostructured silica-embedded zirconia nanoparticles that are competent for the hydrogenolysis of polyethylene with remarkable performance.

    • Shaojiang Chen
    • Akalanka Tennakoon
    • Wenyu Huang
    ResearchOpen Access
    Nature Catalysis
    Volume: 6, P: 161-173

  • Lustrous flexible thin films of semiconducting cyclic polyacetylene (c-PA) have been synthesized and characterized. Rapid and efficient tungsten-catalysed acetylene polymerization conditions produce temporarily soluble c-PA, enabling the in situ derivatization of this typically insoluble polymer. Compelling evidence for the cyclic topology—and its influence on the physical properties of the polymer—are presented.

    • Zhihui Miao
    • Stella A. Gonsales
    • Adam S. Veige
    Research
    Nature Chemistry
    Volume: 13, P: 792-799