Sökning: "III -NOM complexes"

Visar resultat 21 - 25 av 334 avhandlingar innehållade orden III -NOM complexes.

1. 21. Ruthenium(II) Polypyridyl Complexes in Supramolecular Systems relevant to Artificial Photosynthesis

   Författare :Henriette Wolpher; Björn Åkermark; Licheng Sun; Johannes Vos; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ruthenium complexes; Organic chemistry; Organisk kemi;

   Sammanfattning : This thesis describes the synthesis and properties of ruthenium complexes relevant to artificial photosynthesis. The work includes preparation of RuIIpolypyridine complexes as well as multi component systems where RuII(bpy)3 or RuII(tpy)2 type complexes are used as photosesnsitizers. LÄS MER

3. 22. Multidimensional Fluorescence Polarization Imaging of Single Light Harvesting Complexes

   Författare :Sumera Tubasum; Kemisk fysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Light Harvesting Complexes; Single Molecule Spectroscopy; Polarization Spectroscopy; Exciton Dynamics; Spectral Disorder;

   Sammanfattning : This thesis presents my research journey in the Department of Chemical Physics,Lund University. Multidimensional fluorescence polarization imaging is used to study single LH2s. The method uses linearly polarized excitation light and the emission is detected through a polarizer. LÄS MER

4. 23. Dinuclear Manganese Complexes for Artificial Photosynthesis : Synthesis and Properties

   Författare :Magnus Anderlund; Björn Åkermark; William H. Armstrong; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Crystal Structure; Artificial photosynthesis; Manganese complex; Organic chemistry; Organisk kemi;

   Sammanfattning : This thesis deals with the synthesis and characterisation of a series of dinuclear manganese complexes. Their ability to donate electrons to photo-generated ruthenium(III) has been investigated in flash photolysis experiments followed by EPR-spectroscopy. LÄS MER

5. 24. Model Systems for Metal - DNA Interactions. With a Focus on Anticancer Active Platinum(II) Complexes

   Författare :Anna Ericson; Kemiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; kinetics; DNA; poly d T ; guanine; 6-thioinosine-5 -monophosphate; 6-thio-2 -deoxyinosine; 4-thiouridine-5 -monophosphate; 4-thio-2 -deoxyuridine; palladium II ; Gold III ; platinum II ; mechanism; salt effect; activation parameters; Inorganic chemistry; Oorganisk kemi;

   Sammanfattning : Reactions of trans-dicyanodichloroaurate(III) trans-dibromodicyanoaurate(III), trans-diamminedichlorogold(III), cis-diammine(aqua)chloroplatinum(II), cis-ammineaqua-(cyclohexylamine)chloroplatinum(II), chloro(terpyridine)platinum(II) and chloro-(diethylenetriaminepalldium(II) with dimethyl sulfide, thionucleosides, thionucleotides and thione- and guanine-containing 17-mer oligonucleotides have been investigated by use of conventional and high-pressure stopped-flow spectrophotometry and HPLC technique as a function of ionic strength, pH, temperature and pressure in aqueous solutions. The mechanism and rate of oxidation of dimethyl sulfide by gold(III) complexes depends on the concentration of free halide. LÄS MER

7. 25. Structural, Electronic and Reactive Properties of Pentapyridyl - Base Metal Complexes : Relevance for Water Oxidation Catalysis

   Författare :Manuel Boniolo; Johannes Messinger; Antoni Llobet; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Water oxidation; Base metal complexes; Redox potential; Spin crossover; Magnetic anisotropy; Chemistry with specialization in Molecular Biomimetics; Kemi med inriktning mot molekylär biomimetik;

   Sammanfattning : The rationalization of chemical-physical proprieties of transition metal complexes is fundamental in order to understand and tune their reactivity. In this thesis, a systematic investigation of the geometrical and electronic properties of [M(Py5OH)Cl]+ complexes (M= Mn, Fe, Co, Ni) has been performed, and their ability to act as molecular water oxidation catalysts has been probed. LÄS MER