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Citation: An Xu-Wu, Chen Bin, He Jun. Combustion Enthalpies of C₆₀ and C₇₀ by Micro-oxygen-bomb Calorimetry[J]. Acta Physico-Chimica Sinica, ;1997, 13(11): 961-964. doi: 10.3866/PKU.WHXB19971101 shu

Combustion Enthalpies of C₆₀ and C₇₀ by Micro-oxygen-bomb Calorimetry

1.
Institute of Chemistry,The Chinese Academy of Sciences,Beijing 100080

Received Date: 28 July 1997
Available Online: 15 November 1997

A micro-oxygen-bomb calorimeter with a bomb of 4.8 cm3 internal volume was constructed in our laboratory. About 10 mg of sample was needed for each combustion experiment. The energy equivalent of this calorimeter was determined with electric energy. The standard diviation of mean from 5 measurements was 0.02 %.The enthalpies of combustion of pure C60 and C70 were determined, △cUm0(C60,cr)=-(25947.1±8.5)kJ•mol-1, △cUm0(C70,cr)=-(29956.1±8.9)kJ•mol. The enthalpies of formation of the two compounds were derived. Using the Laidler-type bond parameters for aromatic hydrocarbons, the estimated strain energies in C60 and C70 molecules were close each other and close to the estimated value from the model compound, corannulene.
- C₆₀,
- C₇₀,
- Micro-oxygeng-bomb calorimeter,
- Combustion enthalpy,
- Strain energy
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沈阳化工大学材料科学与工程学院沈阳 110142

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Combustion Enthalpies of C60 and C70 by Micro-oxygen-bomb Calorimetry

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通讯作者: 陈斌, bchen63@163.com

Combustion Enthalpies of C₆₀ and C₇₀ by Micro-oxygen-bomb Calorimetry