Fig1_Boundaries.txt: Phase boundaries in figure one. Columns 1 and 3 are the x-axis and columns 2 and 4 are the y-axis. Fig1_Compounds_a.txt: Position of compounds (named in first row) on phase diagram. Odd numbered columns are x-acis and even-numbered columns are y-axis Fig2_Compounds_b.txt: Position of compounds (named in first row) on phase diagram. Odd numbered columns are x-acis and even-numbered columns are y-axis. Fig4a.dat: Contains data from Figure 4(a). The file consists of 2 double columns titled: T(K) and chi (m3/mol). These represent the temperature (X) in kelvin and magnetic susceptbility (Y) in metres cubed per mole for field orientated within the xy-plane (H II xy) and parallel to the unique z-axis(H II z) Fig4b.dat: Contains data from Figure 4(b). The file consists of 2 double columns titled: Magnetic field (T), M (muB per f.u.). These represent the magnetic field (X) in tesla and magnetization (Y) in bohr magnetons per formula unit measured in pulsed magnetic fields at 1.46 kelvin and a SQUID magnetometer at 1.8 kelvin. Fig4c.dat: Contains data from Figure 4(c). The file consists of 2 double columns titled: Magnetic field (T), M (muB per f.u.). These represent the magnetic field (X) in tesla and magnetization (Y) in bohr magnetons per formula unit measured in pulsed magnetic fields at 1.6 kelvin and a SQUID magnetometer at 1.8 kelvin. Fig5a.dat: Contains data from Figure 5(a). The file consists of 2 double columns titled: T(K) and chi (m3/mol). These represent the temperature (X) in kelvin and magnetic susceptibility (Y) in metres cubed per mole for field orientated within the xy-plane (H II xy) and parallel to the unique z-axis(H II z). Fig5b.dat: Contains data from Figure 5(b). The file consists of 3 double columns titled: Magnetic field (T), M (muB per f.u.). These represent the magnetic field (X) in tesla and magnetization (Y) in bohr magnetons per formula unit measured in a SQUID magnetometer at 1.8 kelvin with field along the z axis, within the xy plane and in pulsed magnetic fields at 1.46 kelvin for field within the xy-plane. Fig6.txt: Measured ESR response (even-numbered columns) in a changing field (odd-numbered columns) at different microwave frequencies (2nd row) for Ni(HF2)2(3,5-lut)4. Fig8a.txt: Molar susceptbility (2nd column) of powdered NiCl2(3,5-lut)4 as a function of temperature (1st column). Fig8b.txt: Magnetisation (2nd column) as a function of temperature (1st column) of powdered NiCl2(3,5-lut)4. Fig9a.txt: Susceptbility (2nd column) and inverse susceptibility (3rd column) of powdered NiBr2(3,5-lut)4 as a function of temperature (1st column). Fig9b.txt: Magnetisation (2nd column) as a function of temperature (1st column) of powdered NiBr2(3,5-lut)4. Fig10.txt: Measured ESR response (even-numbered columns) in a changing field (odd-numbered columns) at different microwave frequencies (2nd row) for NiBr2(3,5-lut)4. Fig11.txt: Column 1 is compound name, column 2 is x-axis, column 3 is y-axis and column 4 is colour.