Exchange and dipolar spin-spin interaction and rotational diffusion in saturation transfer EPR spectroscopy

@article{Marsh1992ExchangeAD,
  title={Exchange and dipolar spin-spin interaction and rotational diffusion in saturation transfer EPR spectroscopy},
  author={Derek Marsh},
  journal={Applied Magnetic Resonance},
  year={1992},
  volume={3},
  pages={53-65}
}
Saturation transfer EPR spectroscopy (STEPR) provides a means for investigating weak spin-spin interaction between spin-labelled molecules because the spectral intensity is proportional to the effective spin-lattice relaxation time,T1eff. Rate equations for the spin population defferences yield equivalent results for the dependence ofT1eff on the physical (or chemical) and Heisenberg spin exchange rates and show thatT1eff depends on the extent of redistribution of saturation throughout the… CONTINUE READING