Search for dissertations about: "transition metal clusters"
Showing result 1 - 5 of 33 swedish dissertations containing the words transition metal clusters.
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1. Multicomponent Clusters/Nanoparticles : An Investigation of Electronic and Geometric Properties by Photoelectron Spectroscopy
Abstract : Clusters/nanoparticles are aggregates of a “small” number of building blocks, atoms or molecules, ranging from two up to millions of atoms. Two main groups of clusters have been studied using photoelectron spectroscopy based on synchrotron radiation. READ MORE
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2. Transition Metal Hydride Complexes and Hydrogenated Gallium Clusters : Synthesis and Structural Properties
Abstract : Synthesis and structural characterisation of metal hydrides in two important systems are presented. The first system presented is low valent cobalt and nickel complex hydrides with the compositions BaMg5Co2H10, RbMg5CoNiH10, SrMg2CoH7and Sr4Mg4Co3H19 featuring nickel with oxidation state of 0 and cobalt with oxidation state +I and -I. READ MORE
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3. Quantum mechanical models of nanomagnetism in transition metal clusters and diluted magnetic semiconductors
Abstract : This dissertation investigates nanomagnetism in small transition metal clusters and the diluted magnetic semiconductor (Ga,Mn)As. We derive quantum mechanical models aimed at a realistic description of the low energy physics in these systems. READ MORE
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4. Reactivity of small transition-metal clusters with carbon monoxide
Abstract : .... READ MORE
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5. Transition metal oxofluorides comprising lone pair elements : Synthesis and Characterization
Abstract : Within the family of transition metal oxochlorides/bromides containing lone pair elements, the transition metal cations often adopt a low-dimensional arrangement such as 2D layers, 1D chains or 0D clusters. The reduced dimensionality is attributed to the presence of stereochemically active lone pairs which are positioned in the non-bonding orbital and will not participate in bond formation and instead act as structural spacers that help to separate coordination polyhedra around transition metal cations from forming three dimensional networks. READ MORE