Fig6.dat contains the experimental data from Figure 6. The file consists of two columns of temperature (T) in kelvin (K) versus magnetic susceptibility (chi) in metres-cubed per mole (m^3/mol) for compound 1.

Fig7.dat contains the experimental data from Figure 7. The file consists of two columns of temperature (T) in kelvin (K) versus magnetic susceptibility (chi) in metres-cubed per mole (m^3/mol) for compound 2.

The data in Figures 8 and 9 are derived from the data in Figures 6 and 7.