Search for dissertations about: "porphyrins"

Showing result 6 - 10 of 37 swedish dissertations containing the word porphyrins.

  2. 6. A biophysical study of nucleic acid interactions with analogues and drugs

    Author : Ulrica Sehlstedt; Donald M Crothers; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nucleic acids; binding modes; polarised light spectroscopy; linear dichroism; NMR; triple helix; base-pair breathing dynamics; DAPI; porphyrins; quinoxaline derivatives; Biophysics; Biofysik; Biophysics; biofysik;

    Abstract : work presented in this thesis concerns studies on the physicochemical nature of interactions between nucleic acids and small ligands. The outcome of such studies can yield insights at a molecular level into the physiological mechanisms of action of biologically active nucleic-acid binding molecules. READ MORE

  4. 7. Controlling function by structure-intermolecular interactions and crystal engineering with N-donor ligands

    Author : Mohamed I D M Ghazzali; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; OPL; 10 phenanthroline]2 .; single crystal diffraction; intermolecular interactions; crystal engineering; Fe II coordination polymers; Schiff’s bases; porphyrins; intercalation; [ Ru tris-1;

    Abstract : In the solid state regime, crystal engineering based on non-covalent synthesis requires an intuition about the intermolecular forces that can dictate the molecular architecture. Hydrogen bonds have become an instrumental tool in the self assembly and supramolecular chemistry. READ MORE

  5. 8. Collision- and photon-induced dynamics of complex molecular ions in the gas phase

    Author : Linda Giacomozzi; Henning Zettergren; Jason Greenwood; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; PAHs; Porphyrins; Adenine; Flavins; Biomolecules; Collisions; Experiments; Reactions; Non-Statistical Fragmentation; Molecular Dynamics; Photon-Induced Fragmentation; Luminescence; Photoisomerization; Proton Transfer; fysik; Physics;

    Abstract : In this thesis, I report experiments probing collision- and photon-induced molecular dynamics in the gas phase. Excited molecules formed in such interactions may relax by emitting electrons or photons, isomerization or fragmentation. READ MORE

  6. 9. Intramolecular processes in the excited state of biologically important systems : a spectroscopic study

    Author : Joakim Andreasson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; adenine; porphyrins; photophysics; spectroscopy; DNA-nases;

    Abstract : .... READ MORE

  7. 10. Porphyrin-Based Donor-Bridge-Acceptor Systems: Intrinsic Excited State Deactivation and Intramolecular Energy/Electron Transfer Reactions

    Author : Joakim Andreasson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; spectroscopy; superexchange; mediation; energy transfer; porphyrins; conformational gating; conformational distortions; electron transfer;

    Abstract : Intramolecular energy and electron transfer reactions have been studied between porphyrin donor and acceptor moieties. The porphyrin units are covalently linked together by one of three different bridging chromophores to constitute the series of D-B-A systems. READ MORE