| 微型氧弹热量计和C60及C70的燃烧焓 |
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| 引用本文： | 安绪武,陈斌,何俊.微型氧弹热量计和C60及C70的燃烧焓[J].物理化学学报,1997,13(11):961-964. |
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| 作者姓名： | 安绪武 陈斌 何俊 |
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| 作者单位： | Institute of Chemistry,The Chinese Academy of Sciences,Beijing 100080 |
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| 摘 要： | 富勒烯是新发现的一类碳的稳定单质，其分子骨架中含有多个五员环及非平面球壳状大力键.与全为六员环的平面大r键的石墨结构相比，这些张力提高了分子能量.通过富勒烯的生成焰的测定，对了解这些分子的稳定性和反应性，它们的生成机理，以及研究分子的结构与能量的规律是很有意
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| 关 键 词： | C60 C70 微型氧弹热量计 燃烧焓 张力能 |
| 收稿时间： | 1997-07-28 |
| 修稿时间： | 1997-09-24 |
Combustion Enthalpies of C_(60) and C_(70) by Micro-oxygen-bomb Calorimetry |
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| An Xuwu, Chen Bin, He Jun.Combustion Enthalpies of C_(60) and C_(70) by Micro-oxygen-bomb Calorimetry[J].Acta Physico-Chimica Sinica,1997,13(11):961-964. |
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| Authors: | An Xuwu Chen Bin He Jun |
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| Institution: | Institute of Chemistry,The Chinese Academy of Sciences,Beijing 100080 |
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| Abstract: | 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. |
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| Keywords: | C_(60) C_(70) Micro-oxygeng-bomb calorimeter Combustion enthalpy Strain energy |
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