Sökning: "Reflection absorption infrared spectroscopy"

Visar resultat 1 - 5 av 35 avhandlingar innehållade orden Reflection absorption infrared spectroscopy.

  1. 1. Infrared spectroscopy : Method development and ligand binding studies

    Författare :Saroj Kumar; Andreas Barth; Janos Mink; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Infrared; Ligand binding; method development; Biophysical chemistry; Biofysikalisk kemi; biofysik; Biophysics;

    Sammanfattning : Infrared spectroscopy detects molecular vibrations and assesses the properties of molecules and their environment. It is a powerful technique to detect ligand induced changes in biomolecules as it has distinct signals and provides different levels of structural information. LÄS MER

  3. 2. Infrared studies : Method development and binding of ligands to pyruvate kinase

    Författare :Saroj Kumar; Andreas Barth; Christopher Wharton; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Biophysics; biofysik;

    Sammanfattning : Infrared spectroscopy is a valuable technique for the study of ligand induce change in biomolecules. Our development of a dialysis accessory to attenuated total reflection infrared spectroscopy makes this technique more universal for ligand binding studies. LÄS MER

  4. 3. Formic acid adsorption and photodecomposition on rutile TiO2 (110) : An in situ infrared reflection absorption spectroscopy study

    Författare :Andreas Mattsson; Lars Österlund; Gunnar Niklasson; Claes-Göran Granqvist; Håkan Rensmo; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : TiO2 based photocatalysis is an emerging green nanotechnology that can be used forremoval of pollutants from water and air. It has had an increased research interest, bothfrom an application and fundamental point of view, during the last decades. LÄS MER

  5. 4. Vibrational Spectroscopy of Surface Adsorbates on Metal Surfaces. Experiments and Calculations

    Författare :Ragnar K Ásmundsson; Kemisk fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ab initio electronic structure calculations; Fermi resonance; vibrational spectroscopy; Reflection absorption infrared spectroscopy; Fourier transform infrared spectroscopy; Cu 100 and W 110 single crystal surfaces; Physics; Fysik;

    Sammanfattning : This work deals with a detailed analysis of the vibrational spectra of methoxy (CH3O-) and ethoxy (CH3CH2O-) on W(110) and Cu(100) single crystal surfaces. By using theoretical ab initio quantum mechanical modeling, it is demonstrated that an unprecedented quantitative understanding of the vibrational frequencies of a surface adsorbate can be obtained. LÄS MER

  7. 5. Surface Vibrational and Electron Spectroscopy - Experiments and first-principle calculations

    Författare :Martin Andersson; Kemisk fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; gränsskikt; anharmonicity; Ytkemi; Surface and boundary layery chemistry; adsorbates; metal surface; density functional theory; first-principle calculations; electron spectroscopy; reflection-absorption infrared spectroscopy; vibrational spectroscpy;

    Sammanfattning : This work deals with interpretation of experimental surface spectroscopic data with the aid of first-principle calculations. Surface infrared reflection-absorption spectra as well as spectra from the electron spectroscopic methods photoemission and X-ray absorption are considered. LÄS MER