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Showing 1 to 8 of 8 for “"19F NMR spectroscopy"”.
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Nuclear magnetic resonance studies of boron trihalide complexes of 1,1-BIS (dimethylamino) ethylene and related bases
… adducts of DME have been investigated by 1H and 19F NMR spectroscopy. Both nitrogen and the C-Q-H carbon of DME are possible donor a toms to boron trihal ides but complexation has been found to occur only at carbon of DME. The initial adduct acts as a Bronsted acid and gives up a proton to free …
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Pushing the Limits of the Lithium Indicator Carbon Acidity Scale Using Cyclopentadiene Chemistry and 19F NMR Spectrometry
… cyclopentadiene and indene derivatives, using 19F NMR spectroscopy to determine the equilibrium constants of sequential acid-base reactions. This thesis describes the further extension of the SLI scale to ca. pK = −6. To achieve this result, a set of 11 tetrasubstituted cyclopentadienes were …
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Characterisation of the conformational landscape of the β1-adrenergic receptor and development of a strategy towards NMR studies of the protease-activated receptor 1
… using solution state nuclear magnetic resonance (NMR) spectroscopy. The tβ1AR is a class A G-protein-coupled receptor (GPCR) and the human counterpart is an important drug target in diseases of the heart. In chapter 2, a wide range of constructs, labelling reagents and conditions were tested to …
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Synthesis, Properties, and Reactivity of Pentafluorophenyl Substituted Cyclopentadienes and Their Transition Metal Complexes
… cyclopentadienes and indenes are measured using 19F NMR spectroscopy. The electron-withdrawing fluorinated aryl groups have a substantial acidifying effect. The identity and number of substituents (C6F5, C5F4N, CH3, and t-Bu), the position of the substituents on the cyclopentadiene, and the …
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Probing Organometallic Reactions With 19F NMR
… the metallocene/MAO mixtures are analyzed using 19F NMR spectroscopy. Group 4 metallocene dimethides bearing pentafluorophenyl (C6F5) substituents were synthesized and treated with MAO in benzene-d6. 19F NMR spectroscopic analysis demonstrated reversible methide transfer to form "cation-like" …
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Structural studies of supramolecular host-guest systems
… The complexes were further characterized using 19F/13C DP/MAS and CP/MAS solid-state NMR spectroscopy. The solution state complexes were prepared in D2O for structural characterization using 1H/19F NMR spectroscopy. The NMR studies were complemented using FT-IR, thermal analyses (DSC, and TGA), …
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Exploring the Electrode-Electrolyte Interface of Electrically Conductive Layered Metal-Organic Frameworks with Nuclear Magnetic Resonance
… solid-state nuclear magnetic resonance (NMR) spectroscopy to study ion adsorption and the charging mechanisms of these materials. Further, to address a lack of feasibility studies for deployment of MOFs in supercapacitor electrodes, we conduct a Life-Cycle Assessment (LCA) against …
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Syntheses and characterization of copper(I) complexes for study of dynamic supramolecular ring-chain equilibria and application as photoredox catalysts
… 3. The desired products were characterized by 1H NMR, 13C NMR and 19F NMR spectroscopy. The solid state structures of some ILs have been determined by single-crystal X-ray analysis. In the solid state structures, it has been observed that the size of the anion in the IL crystals of 3-10–3-12 …