An ESR Study of Rotational Reorientation and Spin Relaxation in Liquid and Frozen Media |
Contents
EXPERIMENTAL CONSIDERATIONS | 5 |
SIMULATION OF RIGID LIMIT SPECTRA | 22 |
LINEWIDTH STUDIES ON PADS IN THE MOTIONAL | 32 |
3 other sections not shown
Common terms and phrases
activation energy agreement analysis anisotropic axially symmetric diffusion axis B₁ Brownian and free Brownian diffusion calculated from Eq calculated values Chem correlation function curve d max deviations dipolar interactions ESR lineshapes ESR spectra experimental error experimental results experimental spectra experimental values exponential decay free diffusion frozen D₂O g-tensor components g-value given in Table glycerol isotropic J. H. Freed least square fit lineshapes linewidth results Lorentzian max max microwave molecular molecule motional region motional-narrowing region nitroxide non-secular terms obtained outer hyperfine extrema PADS in 85 PADS in frozen PADS in glycerol-H₂O PADS in H₂O Phys residual linewidth residual width results for PADS rigid limit rotational correlation rotational diffusion sample saturation results shown in Fig simulated and experimental simulated spectra slow-motional region solvent spectra for PADS spectral density spectrum spin parameters spin relaxation spin-lattice relaxation spin-rotational T₁ T₂ tensor TR values TR(sec uncertainty unsaturated variation X-band