SEARCH Articles Figures Tables Atomic orbitals spin motion Diffuse spin motion Electron spin resonance studies rotational motions Jump motion spin states Librational motion, spin-lattice relaxation Librational motion, spin-lattice relaxation times Magic angle spinning motional frequencies Motional spin-diffusion Motionally-driven spin diffusion Spin Relaxation and Local Motion in a Dissolved Aromatic Polyformal Spin Relaxation by Correlated Internal Motions Spin labeling fast-motional spectra Spin-lattice relaxation molecular motion