Search for dissertations about: "Sascha Ott"

Showing result 1 - 5 of 13 swedish dissertations containing the words Sascha Ott.

  1. 1. Novel Approaches to Phosphorus-containing Heterocycles and Cumulenes

    Author : Anna Arkhypchuk; Sascha Ott; John D. Protasiewicz; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; phosphorus; phosphole; oxaphosphole; cumulene; phospha-Wittig-Horner reagent; molecular electronics; Kemi; Chemistry;

    Abstract : Fast development in all areas of life and science over the last 50 years demands versatile, energy efficient and cheap materials with specific but easily tuneable properties which can be used for example in organic light emitting diodes (OLEDs), thin-film transistors, photovoltaic cells, etc. This thesis is devoted to the development of novel synthetic approaches to molecules with potential applications in the field of molecular electronics. READ MORE

  2. 2. Iron, Manganese and Iridium Complexes From Models of RNR and Catalase to Water Oxidation

    Author : Michele Bedin; Anders Dr. Thapper; Sascha Prof. Ott; Vadim G. Kessler; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Iron; manganese; MnCAT; RNR; biomimetic; Kemi; Chemistry;

    Abstract : The focus of this thesis has been synthesise and study metal complexes that mimic the structure and function of the active site in two particular metalloenzymes, ribonucleotide reductase (RNR) and manganese catalase (MnCAT). These two metalloenzymes both have two transition metals ions in the cofactor: two manganese ions in MnCAT and either two iron, iron-manganese or two manganese ions in RNR. READ MORE

  3. 3. Olefins from carbonyls : Development of new phosphorus-based cross-coupling reactions

    Author : Nicolas Daniele D'Imperio; Sascha Ott; Carlos Romero-Nieto; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; olefins; carbonyl olefination; phosphaalkenes; stereoselective synthesis; Wittig; Horner-Wadsworth-Emmons; McMurry;

    Abstract : Olefins, compounds containing C=C double bonds, are omnipresent in nature and serve as useful starting materials for various chemical modifications. Olefins are of crucial importance in Medicinal Chemistry and are also present in essential objects like dyes, polymers and plastics. READ MORE

  4. 4. Novel Organophosphorus Compounds for Materials and Organic Synthesis

    Author : Keyhan Esfandiarfard; Sascha Ott; Declan Gilheany; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis is devoted to the development of new organophosphorus compounds for potential uses in material science and as reagents in Organic Chemistry. Organophosphorus compounds in a single molecule or organic electronics context are appealing as the phosphorous centers perturb the electronic properties of the π-conjugated systems while at the same time provide synthetic handles for subsequent synthetic modifications. READ MORE

  5. 5. Interrogating Diffusional Mass and Charge Transport in Catalytic Metal-Organic Frameworks

    Author : Ben A. Johnson; Sascha Ott; Nicolas Plumeré; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; metal-organic frameworks; molecular catalysis; reaction-diffusion; electrochemistry; water oxidation; charge transport;

    Abstract : Molecular catalysts are efficient and selective for the electrochemical conversion of small molecules for energy conversion. Application of molecular species in a large-scale industrial setting requires stabilization in a heterogeneous support material. READ MORE