Sökning: "ruthenium complex."

Visar resultat 1 - 5 av 80 avhandlingar innehållade orden ruthenium complex..

  1. 1. Ruthenium-Catalyzed Asymmetric Transfer Hydrogenation

    Författare :Tove Slagbrand; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; allylic alcohols; asymmetric catalysis; isomerization; reduction; ruthenium;

    Sammanfattning : This thesis covers the development of two new methods for the asymmetric reduction of ketones and ketone intermediates. The protocols developed are based on the use of a ruthenium pseudo-dipeptide catalyst that previously has been shown to be efficient and selective in the asymmetric reduction of carbonyl compounds. LÄS MER

  3. 2. Biological and Biophysical Studies on Ruthenium Complexes

    Författare :Anna Mårtensson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; metal susceptibility; DNA; antimicrobial; circular dichroism; ruthenium complex; linear dichroism; isothermal titration calorimetry; intercalation;

    Sammanfattning : Small molecules that interact with DNA through intercalation are attractive candidates for treatments against cancer and microbial infections. Octahedral ruthenium(II) polypyridyl complexes, being substitution-inert, readily synthesized and coordinately saturated, has the potential of being developed in to a new family of drugs. LÄS MER

  4. 3. Development of Ruthenium Catalysts for Water Oxidation

    Författare :Tanja M. Laine; Björn Åkermark; Antoni Llobet; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; homogeneous catalysis; O-O bond formation; photocatalysis; ruthenium; water oxidation; organisk kemi; Organic Chemistry;

    Sammanfattning : An increasing global energy demand requires alternative fuel sources. A promising method is artificial photosynthesis. Although, the artificial processes are different from the natural photosynthetic process, the basic principles are the same, i.e. LÄS MER

  5. 4. DNA Interaction Dynamics of Ruthenium(II) Complexes

    Författare :Fredrik Westerlund; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; fluorescence; ruthenium; polarized spectroscopy; threading; sequence selectivity; photophysics; binding kinetics; DNA; intercalation;

    Sammanfattning : DNA-binding of small synthetic ligands is of great importance in a number of different applications, from medicine to molecular biology. This thesis focuses on interactions between DNA and ruthenium(II) complexes, in particular the dimers [µ-bidppz(L)4Ru2]4+ (L=1,10-phenanthroline (P) or L=2,2-bipyridine (B)). LÄS MER

  7. 5. Mechanistic Studies on Ruthenium-Catalyzed Hydrogen Transfer Reactions

    Författare :Jenny B. Åberg; Jan-Erling Bäckvall; Charles P. Casey; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mechanistic studies; catalysis; ruthenium; hydrogen transfer; racemization; transfer hydrogenation; alcohols; ketones; amines; imines; inner-sphere; outer-sphere; solvent cage effect; Organic chemistry; Organisk kemi; organisk kemi; Organic Chemistry;

    Sammanfattning : Mechanistic studies on three different ruthenium-based catalysts have been performed. The catalysts have in common that they have been employed in hydrogen transfer reactions involving alcohols and ketones, amines and imines or both. LÄS MER