An evaporation study of C76 by Knudsen cell mass spectrometry

✍ Scribed by Olga V. Boltalina; Vitaliy Yu. Markov; Andrey Ya. Borschevskii; Lev N. Sidorov; Valery N. Bezmelnitsin; Alexander V. Eletskii; Roger Taylor

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 73 KB
• Volume: 12
• Category: Article
• ISSN: 0951-4198
• DOI: 10.1002/(sici)1097-0231(19980815)12:15<1028::aid-rcm271>3.0.co;2-v

✦ Synopsis

The vapour pressure of pure C 76 and its sublimation enthalpy have been determined by Knudsen cell mass spectrometry in the temperature range 637-911 K. The temperature-pressure equation is ln p(Pa) = (À22 806 AE 820)/T(K) (24.52 AE 1.08). The mean sublimation enthalpy at 764 K is (190 AE 7) kJ/mol. This value is lower than that, (222 AE 17) kJ/mol, determined by us previously from a mixture of higher fullerenes, 1 confirming further that the mixture of higher fullerenes is not an ideal solid solution.