Sökning: "supramolecular systems"

Visar resultat 1 - 5 av 38 avhandlingar innehållade orden supramolecular systems.

  1. 1. Light-Triggered Conformational Switches for Modulation of Molecular Recognition : Applications for Peptidomimetics and Supramolecular Systems

    Författare :Magnus Blom; Adolf Gogoll; Morten Grötli; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bisporphyrin tweezers; peptidomimetics; host-guest systems; conformational analysis; supramolecular chemistry; photochemistry; Organisk kemi; Organic Chemistry; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

    Sammanfattning : The main focus of this thesis is on photochemical modulation of molecular recognition in various host-guest systems. This involves the design, synthesis and integration of light-triggered conformational switches into peptidomimetic guests and molecular tweezer hosts. LÄS MER

  3. 2. Mass Transport Properties in Supramolecular Systems Studied by Diffusion and Relaxation NMR

    Författare :Patrik Jarvoll Dae; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NMR; T2; diffusion; hydrogel; exchange dynamics; T1; magnetic susceptibility; organosilica nanoparticles; microstructure; relaxation; supramolecular systems;

    Sammanfattning : This thesis shows how diffusion and relaxation NMR can be applied in various aspects to study mass transport in supramolecular systems. Information about these systems can be obtained, either by direct measurement of the molecules that are incorporated in a supramolecular structure, or via probe molecules, which indirectly gives information about the system. LÄS MER

  4. 3. Supramolecular model systems for artificial photosynthesis

    Författare :Peter Brandt; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  5. 4. Structural Aspects of Halocuprate and Haloargentate Anions in Supramolecular Systems

    Författare :Catrin Hasselgren; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; coordination chemistry; molecular modelling; supramolecular chemistry; haloacuprate; mass spectrometry; density functional theory; haloargentate; intermolecular interactions;

    Sammanfattning : There is a growing interest in designing and engineering crystals of compounds with desired structures and properties. In this context, a better understanding of the intermolecular interactions present in crystals is of importance and much work is currently being directed towards this goal. LÄS MER

  7. 5. The Fate of Electronically Excited States : Ultrafast Electron and Energy Transfer in Solvated Donor-Acceptor Systems

    Författare :Staffan Wallin; Leif Hammarström; Jan Davidsson; Eric Vauthey; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; Electron transfer; Energy transfer; Anisotropy; Porphyrin; Ruthenium tris-bipyridine; Superexchange; Supramolecular; Donor-Acceptor; Charge transfer state; S2 state; Ultrafast; Fysikalisk kemi; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : Processes where a molecule absorbs visible light and then disposes of the excess energy via electron/energy transfer reactions have an important role both in nature (e.g. in photosynthesis) and in many technical applications (e.g. LÄS MER