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Showing 1–9 of 9 results
Advanced filters: Author: Julius Rebek Clear advanced filters
  • Cavitands are container molecules that have diverse applications from synthetic chemistry to molecular recognition. Deep, water-soluble cavitands based on a resorcinarene framework are prepared using this protocol.

    • Simone Mosca
    • Yang Yu
    • Julius Rebek Jr
    Protocols
    Nature Protocols
    Volume: 11, P: 1371-1387
  • Molecules confined to small volumes can contort themselves into unusual conformations that differ from those usually observed when no constraints are placed on them. It is now shown that when normal alkanes are encapsulated inside self-assembled capsules, they adopt a coiled conformation and exert pressure inside their hosts.

    • Dariush Ajami
    • Julius Rebek Jr
    Research
    Nature Chemistry
    Volume: 1, P: 87-90
  • Intermediate compounds are often produced during a chemical reaction, but they are too short-lived to be easily observed. It seems that a molecular pyramid can persuade them to stick around for a little longer.

    • Julius Rebek Jr
    News & Views
    Nature
    Volume: 444, P: 557
  • Designer supramolecular polymers are a growing field of polymer materials. The designability and flexibility in their structures and functionality have attracted a great deal of attention in polymer science, as well as in supramolecular chemistry. These polymeric structures are formed from one or more molecular components via reversible bonds; therefore, monomeric and polymeric states are in equilibrium on the relevant experimental timescale. The dynamic nature of supramolecular polymers in terms of chain lifetime and conformational flexibility are determined by external conditions. This adaptivity can result in stimuli-responsive structures and properties. This article describes the use of our host–guest structures based on a calix[5]arene, a bisporphyrin, and a self-assembled capsule in the synthesis of supramolecular polymers.

    • Takeharu Haino
    Reviews
    Polymer Journal
    Volume: 51, P: 303-318
  • Supramolecular polymer is broadly defined as any type of an assembly formed from one or more molecular components via reversible bonds; therefore, monomeric and polymeric states are in equilibrium over the relevant experimental timescale. Structural and dynamic properties of supramolecular polymers, including the degree of polymerization (DP), chain lifetime and conformational flexibility, are influenced by external stimuli; thus, these result in supramolecular ‘smart’ materials, which offer adaptivity that leads to easy fabrication, stimuli responsiveness and self-healing at the forefront of science and engineering. This review will focus on the recent developments in supramolecular polymers composed of discrete repeating units, as well as novel supramolecular materials produced by the interplay of supramolecular and polymer chemistry.

    • Takeharu Haino
    Reviews
    Polymer Journal
    Volume: 45, P: 363-383