Sökning: "Host Guest Chemistry"

Visar resultat 11 - 15 av 27 avhandlingar innehållade orden Host Guest Chemistry.

  1. 11. Selectivity in Host-Guest Chemistry

    Författare :Gunnar Westman; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis describes host-guest complexes with the use of a biphenyl crown ether or cyclodextrin as host. Complexes between the biphenyl crown ether and salts form phenylalanine esters were studied. LÄS MER

  3. 12. Synthesis and Studies of NADH Models: Stereoselective Reductions and Host-Guest Properties

    Författare :Ulrik Gran; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; synthesis; NADH model; host-guest complex; stereoselective reductions; macrocyclic; reducing agent;

    Sammanfattning : The aim of the project has been to synthesise macrocyclic NADH models and to study them as reducing agents and hosts. Three types of macrocyclic NADH models have been synthesised. They consist of the same subunits; a chiral unit, a nicotinamide unit and an aromatic spacer. LÄS MER

  4. 13. Structure and Thermoelectric Properties of Type-I Clathrates Ba8(AlxGa1−x)16Ge30

    Författare :Yifei Zhang; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Microstructure; Crystal structure; Transport properties; Thermoelectrics; Clathrates;

    Sammanfattning : Thermoelectric materials enable the direct conversion between a thermal gradient and an electrical potential gradient, and can thus be exploited for electricity generation. One of the promising thermoelectric materials is type-I clathrates. LÄS MER

  5. 14. Analytical developments and applications of ambient mass spectrometry imaging : Visualizing challenging analytes and understanding chemical mechanisms of ischemic stroke

    Författare :Leonidas Mavroudakis; Ingela Lanekoff; Daniel Globisch; Malcolm Clench; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mass spectrometry imaging; ischemic stroke; mass spectrometry; isomers; spatial metabolomics; host-guest; Kemi med inriktning mot analytisk kemi; Chemistry with specialization in Analytical Chemistry;

    Sammanfattning : Bioanalytical methods that provide spatial information on molecular distributions are important for deep understanding of chemical mechanisms in health and disease. For instance, the localized action of drugs and metabolites can provide valuable information on metabolism in specific cellular regions, which would not be possible with bulk analysis. LÄS MER

  7. 15. NMR Studies of Inclusion Compounds

    Författare :Sahar Nikkhou Aski; Jozef Kowalewski; Pierre Mutzenhardt; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NMR; 13C spin relaxation; PFGNMR; Kinetics; Correlation time; Physical chemistry; Fysikalisk kemi; Physical Chemistry; fysikalisk kemi;

    Sammanfattning : This thesis presents the application of some of the NMR methods in studying host-guest complexes, mainly in solution. The general focus of the work is on investigating the reorientational dynamics of some small molecules that are bound inside cavities of larger moieties. LÄS MER