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Showing 1–9 of 9 results
Advanced filters: Author: Johannes A. A. W. Elemans Clear advanced filters

  • Characterizing electrochemical behaviour on the nanometre scale is fundamental to gaining complete insight into the working mechanisms of fuel cells. The application of a new scanning probe microscopy technique can now relate local surface structure to electrochemical activity at a resolution below 10 nm.

    • Johannes A. A. W. Elemans
    News & Views
    Nature Chemistry
    Volume: 3, P: 656-657

  • Developing enantiodivergent catalysts capable of preparing both enantiomeric products from one substrate in a controlled fashion is challenging. Now, a manganese(III)-salen complex with a chiral photoswitchable phosphate counterion is reported for the epoxidation of alkenes in a stereoselective manner, where irradiation with light allows access to either enantiomer of the epoxide.

    • Xiaofei Chen
    • Pieter J. Gilissen
    • Roeland J. M. Nolte
    Research
    Nature Synthesis
    Volume: 1, P: 873-882

  • Paramagnetic metallohost systems are difficult to characterize. Here the authors report that the paramagnetic relaxation enhancement effect can be used to prove by nuclear magnetic resonance experiments that Mn(III) porphyrin cage compounds can bind and thread low molecular weight and polymeric guests.

    • Anne Swartjes
    • Paul B. White
    • Roeland J. M. Nolte
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-8

  • Vibrational circular dichroism (VCD) spectroscopy can be useful for determining the absolute configuration of chiral molecules, as long as the signal intensities are high enough. Here, the authors establish the absolute configurations of two large chiral porphyrin cages and, notably, discover that host-guest binding enhances their VCD intensities.

    • Jiangkun Ouyang
    • Anne Swartjes
    • Roeland J. M. Nolte
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-11

  • A scanning tunnelling microscope has been used to image multistep chemical reactions at a solid/liquid interface with single-molecule resolution. On reacting Mn(III) porphyrins with either O2 or a single oxygen donor, at least four distinct reaction intermediates and products were detected and their interconversion could be observed in real space and real time.

    • Duncan den Boer
    • Min Li
    • Johannes A. A. W. Elemans
    Research
    Nature Chemistry
    Volume: 5, P: 621-627

  • Molecular motors and switches change conformation under the influence of an external stimulus and can be incorporated into functional systems, allowing the construction of adaptive materials and switchable catalysts. Here, the authors present two molecular motor-functionalized porphyrin macrocycles for future photo-switchable catalysis.

    • Pieter J. Gilissen
    • Paul B. White
    • Roeland J. M. Nolte
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-10

  • Efficient and stable water oxidation catalysts are important if photoelectrochemical cells are to be used to provide clean and sustainable solar fuels. A water oxidation catalyst that operates at neutral pH has now been developed that features ruthenium coordination oligomers anchored onto the surfaces of graphitic materials through CH–π interactions.

    • Md Asmaul Hoque
    • Marcos Gil-Sepulcre
    • Antoni Llobet
    Research
    Nature Chemistry
    Volume: 12, P: 1060-1066

  • Large increases in the amount of information produced year on year motivate the development of new storage media. This Review addresses the current status of data storage at the level of single polymer chains: in DNA, proteins and synthetic polymers.

    • Martin G. T. A. Rutten
    • Frits W. Vaandrager
    • Roeland J. M. Nolte
    Reviews
    Nature Reviews Chemistry
    Volume: 2, P: 365-381