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1. 6. Probing unoccupied electronic states in aqueous solutions

   Författare :Lars-Åke Näslund; Anders Nilsson; Hendrik Bluhm; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; x-ray absorption; x-ray absorption spectroscopy; XAS; NEXAFS; water; liquid water; aqueous solution; hydrogen bond; hydrogen bond network; local geometry; Physics; Fysik;

   Sammanfattning : Water is one of the most common compounds on earth and is essential for all biological activities. Water has, however, been a mystery for many years due to the large number of unusual chemical and physical properties, e.g. decreased volume during melting and maximum density at 4 °C. LÄS MER

3. 7. Aspects of hydrogen bonding in biological model compounds : Hydrogen-bond. 95. Diffraction studies of hydrogen bonding in pyridines, pyrimidines and amino acids

   Författare :Åke Kvick; Uppsala universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

   Sammanfattning : .... LÄS MER

4. 8. Adsorption of Molecular Hydrogen on Cu, Pd and Ni Surfaces

   Författare :Krister Svensson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; electron energy loss spectroscopy; nickel; molecular chemisorption; hydrogen; palladium; physisorption; photodesorption; copper;

   Sammanfattning : This thesis is devoted to spectroscopic studies of molecular hydrogen adsorbed on metal surfaces. Hydrogen is the simplest molecule available and is a very valuable model adsorbate. From a spectroscopic point of view there are also three easily accessible molecular isotopes, H2, HD and D2, with widely different masses. LÄS MER

5. 9. Iridium Catalyzed Carbon- Heteroatom Bond Forming Reactions via Hydrogen Transfer : Method Development and Mechanistic Elucidations

   Författare :Aitor Bermejo López; Belén Martín‐Matute; Eduardo Peris; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Catalysis; N-Heterocyclic carbene; N-Alkylation; Hydrogen transfer; Amino acids; Carbohydrates; Amines; Organic Chemistry; organisk kemi;

   Sammanfattning : The present thesis describes the applicability of two different iridium(III) complexes for C-O and C-N bond forming reactions. The different projects described in this work are united by the use of an iridium catalyst bearing a functionalized N-heterocyclic carbene ligand. LÄS MER

7. 10. Ruthenium-Catalyzed Hydrogen Transfer Reactions : Mechanistic Studies and Chemoenzymatic Dynamic Kinetic Resolutions

   Författare :Madeleine Warner; Jan-Erling Bäckvall; Andreas Pfaltz; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hydrogen transfer; ruthenium catalysis; kinetic resolution; dynamic kinetic resolution; racemization; asymmetric synthesis; organisk kemi; Organic Chemistry;

   Sammanfattning : The main focus of this thesis lies on transition metal-catalyzed hydrogen transfer reactions. In the first part of the thesis, the mechanism for racemization of sec-alcohols with a ruthenium complex, Ru(CO)2Cl(η5-C5Ph5) was studied. LÄS MER