Master of Science
Metal-organic frameworks (MOFs) are a class of porous materials that have attracted much attention due to their large surface areas, high tunability and their high selectivity for gas adsorption applications. In this work, solid-state nuclear magnetic resonance (SSNMR) experiments and single crystal X-ray diffraction (SCXRD) experiments are used to investigate carbon dioxide adsorption within the ultramicroporous MOFs SIFSIX-3-Zn (Chapter 2) and ZnAtzOx. (Chapter 3). Analysis finds that the CO2 SIFSIX-3-Zn undergoes wobbling motions with a low temperature dependence, and in ZnAtzOx undergoes wobbling and hopping motions with a low temperature dependence. SCXRD is used to precisely determine the CO2 adsorption site in SIFSIX-3-Zn, centered within the pore. Chapter 4 discusses the use of SSNMR to study the effects of water adsorption within these MOFs, with preliminary results suggesting water is strongly adsorbed in both frameworks with a low degree of temperature dependence.
Desveaux, Bligh, "Adsorbed Gas Behaviour and Guest-Host Interactions in Ultramicroporous Metal-Organic Frameworks" (2017). Electronic Thesis and Dissertation Repository. 5125.