期刊
CHEMICAL PHYSICS LETTERS
卷 330, 期 5-6, 页码 491-496出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0009-2614(00)01148-9
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Decagonal C-60 crystals grown from a-hexane solutions correspond to an orthorhombic 1:1 solvate (a = 10.249 Angstrom, b = 31.308 Angstrom, c = 10.164 Angstrom). It forms with negative excess volume (-55.5 Angstrom (3) per formula unit) and transforms on heating into fee C60 (desolvation enthalpy of +50.6 kJ per solvate mole, close to the sublimation enthalpy for pure n-hexane) while n-hexane desorption from fee C60 is accompanied by an enthalpy of +48.6 kJ per solvent mole. Thus solvate formation is preferred to solvent adsorption. Orthorhombic C60 1 n-hexane undergoes no degradation when stored in air for 9 years at room temperature in the dark. (C) 2000 Elsevier Science B.V. All rights reserved.
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