Search for dissertations about: "host-guest complexes"

Showing result 1 - 5 of 12 swedish dissertations containing the words host-guest complexes.

2. 1. NMR Investigations of Host-Guest Complexes and Their Dynamic Properties

   Author : Zdenek Tosner; Jozef Kowalewski; Josef Stepanek; Klaus Muller; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; supramolecular chemistry; host-guest complexes; non-covalent interactions; nuclear magnetic resonance; molecular motion; C-13 relaxation; deuterium NMR; dipolar recoupling; Physical chemistry; Fysikalisk kemi;

   Abstract : This thesis discusses several different methods offered by solution and solid state nuclear magnetic resonance for investigation of host-guest complexes and their constituents. The presented methods were used especially (but not exclusively) to address rotational dynamics of the bound guest in different molecular systems. READ MORE

4. 2. Selectivity in Host-Guest Chemistry

   Author : Gunnar Westman; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : 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. READ MORE

5. 3. Fullerene γ-Cyclodextrin Complexes

   Author : Thomas Andersson; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; C60; a-cyclodextrin; aggregates; FAB LSIMS; Buckminsterfullerene; g-cyclodextrin; b-cyclodextrin; ring-currents; fullerene; host-guest; C70;

   Abstract : The fullerenes, C60 and C70, can form inclusion complexes with .gamma.-cyclodextrin as the host. The complexes are formed by refluxing a water solution of . READ MORE

6. 4. Chloromethane Complexation by Cryptophanes : Host-Guest Chemistry Investigated by NMR and Quantum Chemical Calculations

   Author : Zoltan Takacs; Jozef Kowalewski; Mikael Akke; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Host–guest complexes; inclusion phenomenon; cryptophanes; NMR; kinetics; activation energy; dipolar interaction; exchange; quantum chemical optimization; calculated chemical shifts; NOESY; cavity size; fysikalisk kemi; Physical Chemistry;

   Abstract : Host–guest complexes are widely investigated because of their importance in many industrial applications. The investigation of their physico–chemical properties helps understanding the inclusion phenomenon. The hosts investigated in this work are cryptophane molecules possessing a hydrophobic cavity. READ MORE

7. 5. Bicyclo[3.3.1]nonanes as Scaffolds in Supramolecular Chemistry : From Host-Guest Systems to Hydrogen-Bonded Aggregates

   Author : Anna Lidskog; Centrum för analys och syntes; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; supramolecular chemistry; host-guest system; non-covalent interactions; hydrogen bonding; aromatic interactions; electrostatic interactions; synthetic receptors; self-assembly; nanotubes;

   Abstract : This thesis describes the use of bicyclo[3.3.1]nonane and its heteroanalogue 1,5- diazabicyclo[3.3. READ MORE