Search for dissertations about: "molecules"

Showing result 6 - 10 of 3504 swedish dissertations containing the word molecules.

  2. 6. Quantum Scattering of Atoms and Molecules from Low-Index Copper Surfaces

    Author : Petter Linde; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; surface; physisorption; potential; atoms; molecules; Debye-Waller factor; copper; diffraction; rotational excitations; resonances; semiclassical model; molecular beam; laser induced thermal desorption;

    Abstract : .... READ MORE

  4. 7. A soft X-ray emission study of the electronic structure of molecules

    Author : Kerstin Gunnelin; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; molecules; electronic structure; soft x-ray emission spectroscopy; Fysik; Physics; Fysik; fysik; Physics;

    Abstract : The electronic structure of molecules has been studied with soft x-ray emission (SXE)spectroscopy. The parity selection rule for electronic transitions using resonant excitation has been verified for homonuclear diatomic molecules by studying N2 and O2. READ MORE

  5. 8. Cosmic Molecules and Clusters : Knockout Driven Reactions

    Author : Naemi Florin; Henning Zettergren; Michael Gatchell; Cyril Falvo; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Clusters; Fullerenes; PAHs; Knockout; Physics; fysik;

    Abstract : Fullerenes and PAHs (polycyclic aromatic hydrocarbons) are two families of carbon based molecules. These are both present in the interstellar medium, and are there believed to play important roles in various processes, including the formation of stars in the case of PAHs. READ MORE

  6. 9. Accumulative Charge Separation in Photocatalysis : From Molecules to Nanoparticles

    Author : Mariia Pavliuk; Jacinto Sá; Leif Hammarström; Gary Brudvig; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Accumulative charge separation; Electron transfer; Plasmon dynamics; Time-resolved spectroscopy; Photocatalysis.; Chemistry with specialization in Physical Chemistry; Kemi med inriktning mot fysikalisk kemi;

    Abstract : Photochemical energy conversion into solar fuel involves steps of light absorption, charge separation and catalysis. Nature has taught us that the effective accumulation of redox equivalents and charge separation are the key steps in sunlight conversion. READ MORE

  7. 10. Organic Azides : Functional Molecules and Materials

    Author : Giampiero Proietti; Peter Dinér; Per I. Arvidsson; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; perfluorinated Aromatic Azide; Photoactivatable; fluorophores; aggregation-induced emission; sulfonimidamides; sulfoximes; chiral auxilary; organogel; azides reduction; Ni-B; Kemi; Chemistry;

    Abstract : The work presented in this thesis stems from the chemistry of the azido group, and more specifically from the unique reactivity of perfluorinated aromatic azides and how to use this reactivity to access new types of molecules to enable new applications in asymmetric synthesis and materials.In the first section of this thesis, a photoactivatable fluorescence probe is presented, where the non-luminescent azide was activated via a UV-light-promoted intramolecular N–H insertion reaction forming a fluorescence emitter. READ MORE