Fig. 7

1H and 13C spin–lattice relaxation times of N(CH3)4MnCl3 with increasing temperature at a frequency of 400.13 and 125.76 MHz, respectively (Inset: 13C inversion recovery trace at a frequency of 125.76 MHz).

1H and 13C spin–lattice relaxation times of N(CH3)4MnCl3 with increasing temperature at a frequency of 400.13 and 125.76 MHz, respectively (Inset: 13C inversion recovery trace at a frequency of 125.76 MHz).