Search for dissertations about: "cis trans"

Showing result 1 - 5 of 109 swedish dissertations containing the words cis trans.

  1. 1. Synthesis and photochemical properties of cis-trans isomeric 1,2-di(9-phenanthryl)ethylene and 9- phenanthrylpropenones

    Author : Annika Vannerberg; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; phenanthrene; 2-Di 9-phenatryl ethylene; 9-phenanthryacetalehyde; 10-dihydrophenanthrene; 9-phenanthraldehyde; trans-9-phenanthrylpropene; reduction with LiAlH4; cis-1; cycloaddition; 9-hydromethyl-10- 9-phenathrylmethyl -9; trans-cis isomerization; dehydrocyclization;

    Abstract : .... READ MORE

  2. 2. Cis-trans photoisomerization : mechanisms and catalysis

    Author : Helene Jonsson; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  3. 3. Experimental and Theoretical Studies of Cis-Trans Photoisomerizations and Conditions for Effective Catalysis

    Author : Helene Möllerstedt; Chalmers University of Technology; []
    Keywords : catalysis; triplet state; quantum chain process; cis-trans isomerization; adiabatic; potential energy surface; density functional theory; energy transfer;

    Abstract : Triplet-sensitized cis-trans photoisomerizations have been investigated both experimentally and theoretically. Mapping of the reaction path for isomerization of 1,4-bis(1-propenyl)benzene (1) on the triplet state energy surface has been done by quantum yield measurements and laser flash photolysis. READ MORE

  4. 4. Triplet state cis-trans photoisomerizations : catalysis and calculations

    Author : Maria Brink; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  5. 5. A Crystallographic Study of Platinum(II) Complexes

    Author : Karin Lövqvist; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Oorganisk kemi; Inorganic chemistry; X-ray diffraction; single crystal; structure determination; platinum II ; ligands; trans-influence; cis-influence;

    Abstract : Single crystal structural data have been used to estimate the influence of the X, Y and Z ligands on the Pt‹L bond length in [PtLXYZ] complexes, i.e. the ground state cis- and trans-influence. Cl or S were selected as indicator ligands, L, for these studies. READ MORE