Aryl ring rotation in porphyrins. A carbon-13 NMR spin-lattice relaxation time study

Engineering & Materials Science

• Spin-lattice relaxation 100%
• Porphyrins 89%
• Time and motion study 68%
• Relaxation time 66%
• Nuclear magnetic resonance 61%
• Carbon 38%
• Electrons 30%
• Energy transfer 23%
• Barreling 14%
• Time measurement 11%
• Molecules 9%
• Hydrogen 8%

Physics & Astronomy

• carbon 13 71%
• porphyrins 64%
• spin-lattice relaxation 53%
• nuclear magnetic resonance 40%
• relaxation time 40%
• rings 34%
• phenyls 22%
• electron transfer 20%
• energy transfer 16%
• diffusion coefficient 16%
• librational motion 15%
• retraining 9%
• time measurement 8%
• hydrogen 6%
• molecules 5%
• electrons 4%
• energy 3%

Chemical Compounds

• Spin-Lattice Relaxation 60%
• Porphyrin 42%
• Meso Isomer 34%
• Time 18%
• Diffusion Coefficient 17%
• Spin-Lattice Relaxation Time Measurement 17%
• Electron Transfer 14%
• Aryl Group 11%
• Single Bond 10%
• Alkyl Group 9%
• Electron Donor 9%
• Energy Transfer 8%
• Donor 6%
• Hydrogen 5%
• Energy 4%
• Molecule 3%