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Showing 1–12 of 12 results
Advanced filters: Author: Grigore A. Timco Clear advanced filters

  • Paramagnetic heterometallic rings have long been considered as possible qubits within a quantum information processing system. Here, the authors employ supramolecular chemistry to fabricate multiple rings around multi-armed threads, as an important step towards generating useful qubit arrays.

    • Antonio Fernandez
    • Jesus Ferrando-Soria
    • Richard E.P. Winpenny
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-6

  • The ability to assemble weakly-interacting subsystems is a prerequisite for implementing quantum-information processing. In recent years, molecular nanomagnets have been proposed as suitable candidates for qubit encoding and manipulation, with antiferromagnetic Cr7Ni rings of particular interest. It has now been shown that such rings can be chemically linked to each other and the coupling between their spins tuned through the choice of chemical linker.

    • Grigore A. Timco
    • Stefano Carretta
    • Richard E. P. Winpenny
    Research
    Nature Nanotechnology
    Volume: 4, P: 173-178

  • Rotaxanes, in which ring-shaped subunits encircle the 'axles' of molecular dumb-bells, have been mooted as possible components of molecular machines. To date, most rotaxanes are organic, but David Leigh and colleagues now report hybrid rotaxanes, which are expected to offer a far wider range of useful physical properties to molecular engineers than purely organic rotaxanes.

    • Chin-Fa Lee
    • David A. Leigh
    • Richard E. P. Winpenny
    Research
    Nature
    Volume: 458, P: 314-318

  • Polymetallic rings are formed via the collision-induced dissociation of larger complexes. Ion mobility mass spectrometry can be used to determine whether the formed polymetallic complexes are cyclic or acyclic.

    • Niklas Geue
    • Grigore A. Timco
    • Perdita E. Barran
    ResearchOpen Access
    Nature Synthesis
    Volume: 2, P: 926-936

  • Mechanically interlocked molecules and molecular cages are two important themes in supramolecular chemistry. Here, the authors combine these concepts to construct a giant [13]rotaxane built around a palladium capsule, one of the most complex metallosupramolecular assemblies yet.

    • Jesus Ferrando-Soria
    • Antonio Fernandez
    • Richard E. P. Winpenny
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-7

  • The physical implementation of quantum information processing requires individual qubits and entangling gates. Here, the authors demonstrate a modular implementation through chemistry, assembling molecular {Cr7Ni} rings acting as qubits, with supramolecular structures realizing gates by choice of the linker.

    • Jesús Ferrando-Soria
    • Eufemio Moreno Pineda
    • Richard E.P. Winpenny
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-10

  • Magnetic scattering may profoundly modify the electronic properties of a topological insulator. Here, Nam et al. report a method enabling separation of the effects of magnetic and non-magnetic scattering by decorating the surface of topological insulators with molecules.

    • Moon-Sun Nam
    • Benjamin H. Williams
    • Arzhang Ardavan
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-8

  • Understanding the spin dynamics in magnetic nanostructures is important for spintronics, but so far it has been impossible to probe the spin dynamics directly. A neutron-scattering technique providing direct information about dynamical two-spin correlations in a molecular nanomagnet has now been demonstrated.

    • Michael L. Baker
    • Tatiana Guidi
    • Paolo Santini
    Research
    Nature Physics
    Volume: 8, P: 906-911

  • Polymer beads are used in the core of magnetic particles, and beads functionalised with paramagnetic molecules are promising as agents for dynamic nuclear polarization. Here, the authors use conventional click chemistry to decorate a polymer bead with 1014 [2]rotaxanes containing paramagnetic {Cr7Ni} rings.

    • Deepak Asthana
    • Dean Thomas
    • Richard E. P. Winpenny
    ResearchOpen Access
    Communications Chemistry
    Volume: 5, P: 1-9