Thermochemistry of Solvated Crystals of C60> and C70> with o-Xylene

Differential scanning calorimetry (DSC) was used to study the binary systems of C₆₀-o-xylene and C₇₀-o-xylene and the ternary system C₆₀-C₇₀-o-xylene. Fullerene C₆₀ formed solvated crystals C₆₀·2C₈H₁₀ with incongruent melting point 320 K and with enthalpy of decomposition 31±3 kJ (mol of C₆₀)^-1. Two solvated crystals of C₇₀ with incongruent melting points 283 and 369 K, and with decomposition enthalpies 18.5±2.2 and 23.0±1.5 kJ (mol of C₇₀)^-1, were formed from o-xylene solutions. Three ternary compositions with C₆₀/C₇₀ mole ratios of 3:1, 1:1 and 1:3 were scanned by DSC. This revised version was published online in July 2006 with corrections to the Cover Date.