Search for dissertations about: "Paramagnetic NMR"

Showing result 1 - 5 of 24 swedish dissertations containing the words Paramagnetic NMR.

  2. 1. Probing Paramagnetic Systems by Solid-State NMR Spectroscopy

    Author : José P. Carvalho; Andrew J. Pell; Sharon Ashbrook; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Solid-state NMR; Magic-Angle Spinning; Paramagnetic NMR; Frequency-Swept Adiabatic Pulses; Quantum Chemistry; Quadrupolar Interaction; Physical Chemistry; fysikalisk kemi;

    Abstract : Paramagnetic systems have a wide range of applications ranging from energy storage or conversion to catalytic processes, metalloproteins and light-emitting materials. Over the recent years nuclear magnetic resonance (NMR) spectroscopy has become an established tool for studying the structural and electronic properties of these systems, largely because it can provide a link between the structure and the bulk properties. READ MORE

  4. 2. Analysis and speciation of organic phosphorus in environmental matrices : Development of methods to improve 31P NMR analysis

    Author : Johan Vestergren; Gröbner Gerhard; Jurgen Schleucher; Ulrik Ilstedt; Per Persson; Reiner Giesler; Benjamin L. Turner; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Phosphorus; soil; 31P NMR; NaOH EDTA; terrestrial; sulfide; speciation; bioavailability; paramagnetic; humus; boreal; tropical; multi-dimensional; agroforestry; chronosequence; fysikalisk kemi; Physical Chemistry;

    Abstract : Phosphorus (P) is an essential element for life on our planet. It is central in numerous biochemical processes in terrestrial and aqueous ecosystems including food production; and it is the primary growth-limiting nutrient in some of the world’s biomes. READ MORE

  5. 3. Probing Dynamics of Oligosaccharides by Interference Phenomena in NMR Relaxation

    Author : Leila Ghalebani; Jozef Kowalewski; Norbert Mueller; Stockholms universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NMR; sugars; oligosaccharides; carbon-13 relaxation; cross-correlated relaxation; molecular dynamics; internal motion; random jumps; PRE; paramagnetic relaxation; Chemistry; Kemi; fysikalisk kemi; Physical Chemistry;

    Abstract : Oligosaccharides (carbohydrates) are a large class of biological molecules that are important as energy sources in the human body and have enormously varied biological functions. It is generally believed that biological activities of carbohydrates are related to their internal dynamics. READ MORE

  6. 4. Escherichia coli transhydrogenase : an NMR and crystallisation study

    Author : Tomas Johansson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; paramagnetic NMR; site-directed mutagenesis; structure function; transhydrogenase; srystallisation; protein-protein interactions; membrane protein;

    Abstract : .... READ MORE

  7. 5. Water Relaxation Processes as Seen by NMR Spectroscopy Using MD and BD Simulations

    Author : Ken Åman; Per-Olof Westlund; Arnold Maliniak; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; NMR; Stochastic Liouville Equation; Brownian Dynamics; Molecular Dynamics; Water; Relaxation; Deuterium; ESR; Fysikalisk kemi; Physical chemistry; Fysikalisk kemi; Physical Chemistry; fysikalisk kemi;

    Abstract : This thesis describes water proton and deuterium relaxation processes, as seen by Nuclear Magnetic Resonance (NMR) spectroscopy, using Brownian Dynamics (BD) or Molecular Dynamics (MD) simulations. The MD simulations reveal new detailed information about the dynamics and order of water molecules outside of a lipid bilayer. READ MORE