Abstract

The standard molar enthalpy of combustion of fluorinated fullereneC60F48 was determined by rotating-bomb calorimetry,ΔcHmo=−(24638 ± 163)kJ · mol−1. Using this result and the standard molar enthalpy of sublimation,ΔsubHmo= (109 ± 7)kJ · mol−1, the values of the standard molar enthalpies of formation of C60F48in the crystalline and gaseous states were found to be −(7563 ± 166)kJ · mol−1and −(7454 ± 166)kJ · mol−1, respectively. The enthalpy of reaction C60F48(g) = C60(g) + 48F(g) was calculated,ΔrHmo (298.15 K) = (13800 ± 167)kJ · mol−1, orΔrHmo (298.15K )/48 = (287.5 ± 3.5)kJ · mol−1.

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