Sökning: "transition metals"

Visar resultat 1 - 5 av 186 avhandlingar innehållade orden transition metals.

  1. 1. Transition Metal Hydrides Biomimetic Studies and Catalytic Applications

    Detta är en avhandling från Stockholm : Institutionen för organisk kemi

    Författare :Jesper Ekström; Hans Adolfsson; Jonathan Williams; [2007]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; transition metals; catalysis; bioinorganic chemistry; hydrides; NATURAL SCIENCES Chemistry Organic chemistry; NATURVETENSKAP Kemi Organisk kemi; Organic Chemistry; organisk kemi;

    Sammanfattning : In this thesis, studies of the nature of different transition metal-hydride complexes are described. The first part deals with the enantioswitchable behaviour of rhodium complexes derived from amino acids, applied in asymmetric transfer hydrogenation of ketones. LÄS MER

  2. 2. Hydrogen-induced distortions i bcc transition metals

    Detta är en avhandling från Stockholm : Institutionen för organisk kemi

    Författare :Björn von Sydow; [1995]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; niobium; hydrogen diffusion; metal-hydrogen system; interatomic interaction potentitals; transition metals; distortions;

    Sammanfattning : .... LÄS MER

  3. 3. Characterization and Functionalization of 2D Overlayers Adsorbed on Transition Metals

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :May Ling Ng; Nils Mårtensson; Alexei Preobrajenski; Anne Borg; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; h-BN; graphene; transition metals; nanomesh; functionalization; PES; NEXAFS; STM; LEED; NATURAL SCIENCES Physics Condensed matter physics; NATURVETENSKAP Fysik Kondenserade materiens fysik; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Sammanfattning : Two-dimensional layered materials, namely monolayer hexagonal boron nitride and graphene were grown by CVD on various transition metals. The physical and chemical properties of these systems were characterized systematically using synchrotron-based spectroscopic techniques, scanning tunneling microscopy and low energy electron diffraction. LÄS MER

  4. 4. Interaction of C60 with transition metals for thin film applications

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Lars Norin; [1998]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry; C60; transition metals; fulleride; carbide; epitaxy; Kemi; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; Inorganic Chemistry; oorganisk kemi;

    Sammanfattning : The fullerene molecule C60 is known to undergo many different chemical reactions, including intercalation of alkali- and alkaline earth metals. Relatively little is still known about the reaction between transition metals and C60, and the objective of this thesis was therefore-to investigate the chemical interaction between C60 and some group IV-VI transition metals. LÄS MER

  5. 5. Transition metals in ß-rhombohedral boron : a structural study and a note on icosahedral boron-rich structures

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Bengt Callmer; [1977]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER