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Showing 1–3 of 3 results
Advanced filters: Author: Maurice Brookhart Clear advanced filters

  • Ultra-high molecular weight polyethylene is a desirable commodity. Here the authors show that a tri-1-adamantylphosphine-nickel complex, when exposed to alkyl aluminium activators, polymerizes ethylene to ultrahigh-molecular-weight polyethylene with initial activities reaching 3.8 million turnovers/h at 10 °C.

    • Andrew L. Kocen
    • Maurice Brookhart
    • Olafs Daugulis
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-6

  • Chemical reactions at the interior of single crystals are likely to be highly selective, but examples of single crystal to single crystal (SC–SC) transformations are uncommon. Here, a series of SC–SC transformations are reported that involve the interchange of multiple small gaseous ligands at an iridium centre in molecular single crystals of a pincer Ir(I) complex. The single crystal remains intact during these ligand-exchange reactions, which occur within the crystal and do not require prior ligand extrusion.

    • Zheng Huang
    • Peter S. White
    • Maurice Brookhart
    Research
    Nature
    Volume: 465, P: 598-601

  • Aromatic hydrocarbons are among the most important building blocks in the chemical industry. Here, n-alkanes are catalytically converted to alkylaromatics, in yields up to 86%, using ‘pincer’-ligated iridium complexes and olefinic hydrogen acceptors. The carbon number of the n-alkanes is retained in the products, which are exclusively unbranched (n-alkyl-substituted).

    • Ritu Ahuja
    • Benudhar Punji
    • Alan S. Goldman
    Research
    Nature Chemistry
    Volume: 3, P: 167-171