>In order to end the controversy concerning H-bonding in EMI–BF₄ ionic liquid, we have employed NMR techniques to measure diffusion coefficients using proton resonance signals, ¹³C spin–lattice relaxation times, and nuclear Overhauser enhancements. From the latter two experiments, one can extract the ¹³C dipole–dipole relaxation rate, ^[1] which in turnv ...