Journal of the Chemical Society Faraday Transactions 1 Physical Chemistry in Condensed Phases · 1976 · 23 citations · 0 references
Natural SciencesChemistryPhysicsCondensed Matter PhysicsCrystal StructurePhysical ChemistryCrystallographyLiquid CrystalsPhase AnalysisPhase DiagramsPhase EquilibriaX-ray CrystallographyHexagonal SymmetryLiquid Crystal Phase BehaviorLyotropic Liquid CrystalsPhase Diagram ConstructionQuadrupole InteractionQuadrupole SplittingX-ray Diffraction Analysis
The lyotropic liquid crystalline phases formed by the system lithium perfluoro-octanoate and water have been examined by X-ray diffraction and polarising microscopy. The phases formed are complex hexagonal, lamellar and reversed hexagonal. The latter two have structures similar to those formed by hydrocarbon surfactants; the structure of the complex hexagonal phase is less certain. The binding and orientation of water and lithium ions have been measured using n.m.r. quadrupole splittings. The orientation of both bound water and lithium ions is similar in the complex hexagonal and lamellar phases, and is altered in the reversed hexagonal phase.