Functionalised polyhedral oligomeric silsesquioxane with encapsulated fluoride – first observation of fluxional Si⋯F interactions in POSS
Mathilde Laird, Cédric Totée, Philippe Gaveau, Gilles Silly, Arie van der Lee, Carole Carcel, Masafumi Unno, John R. Bartlett, Michel Wong Chi Man
Abstract
interacts equivalently with all eight Si atoms. Additional variable temperature NMR studies demonstrated a threshold at -5 °C below which no SiF interactions are observed, and above which an increasing SiF covalent character occurs.
Topics & Concepts
SilsesquioxaneFluorideMaterials sciencePolymer chemistryCrystallographyChemistryPolymerComposite materialInorganic chemistrySilicone and Siloxane ChemistryInorganic Fluorides and Related CompoundsAerogels and thermal insulation