Eight-membered-ring solid-state conformational interconversion via the atom-flip mechanism, a CPMAS ¹³C NMR and crystallographic stereochemical study

Keyphrases

• Solid State 100%
• 13C CPMAS NMR 100%
• Eight-membered Ring 100%
• Conformational Interconversion 100%
• Flip Mechanism 100%
• Stereochemical Studies 100%
• CRISTAL 100%
• Occupancy Factor 75%
• Proton 50%
• Low Temperature 50%
• Bromide 50%
• Interconversion 50%
• Nefopam 50%
• Ammonium Cation 50%
• Medium-sized Rings 50%
• Screw Axis 50%
• Methyl Groups 25%
• Quaternary Ammonium Salt 25%
• Opioid Analgesics 25%
• Van Der Waals Interaction 25%
• Chloride 25%
• Size Dependence 25%
• Iodide 25%
• Monoclinic 25%
• NMR Studies 25%
• T1 Relaxation Time 25%
• Extended Conformation 25%
• Configuration Space 25%
• Void Size 25%
• Magnetic Dipole 25%
• Relaxation Mechanism 25%
• Low Energy Conformations 25%
• Local Magnetic Field 25%
• Screw Symmetry 25%
• Slow Exchange 25%
• Distance Dependence 25%
• 13C NMR Spectra 25%
• Tertiary Amine 25%
• Complex Dynamics Behavior 25%
• Amine Compounds 25%
• Halide Anions 25%
• Equilibrium Quantity 25%
• Packing Motifs 25%
• Pseudopolymorph 25%
• Intercation 25%
• Gem-dimethyl 25%
• Temperature Dependence 25%
• Rapidly Rotating 25%
• CP-MAS NMR 25%

Chemistry

• 13C Cross Polarization Magic Angle Spinning 100%
• Nefopam 100%
• Cation 100%
• Ammonium 100%
• Methyl Group 50%
• NMR Spectroscopy 50%
• Magnetic Field 50%
• Relaxation 50%
• Conformational Isomer 50%
• Space Group 50%
• Van Der Waals Force 50%
• Tertiary Amine 50%
• Halide Anion 50%
• Cross Polarization Magic-Angle Spinning 50%
• 13C CPMAS NMR Spectrum 50%
• Non-Narcotic Analgesic 50%
• P21/C 50%
• Quaternary Ammonium Salt 50%
• Chloride 50%