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首页> 外文期刊>Chemical Physics Letters >MASS SPECTROMETRIC INVESTIGATION OF THE THERMODYNAMIC PROPERTIES OF THE SI6 MOLECULE
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MASS SPECTROMETRIC INVESTIGATION OF THE THERMODYNAMIC PROPERTIES OF THE SI6 MOLECULE

机译:SI6分子热力学性质的质谱分析

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摘要

Partial pressures of Si(g) and Si-6(g) over condensed silicon have been measured by Knudsen cell mass spectrometry. The atomization energy and enthalpy of formation of Si,(g) was evaluated for the reaction Si-6(g) = 6Si(g) with these partial pressures and with thermal functions derived from recent experimental and theoretical molecular parameters. The results, Delta(a)H(o)[Si-6(g)] = 1981 +/- 32 kJ mol(-1) and Delta(f)H(298.15)[Si-6(g)] = 733 +/- 41 kJ mol(-1) are compared with predictions from recent theoretical calculations. [References: 36]
机译:Si(g)和Si-6(g)在凝结硅上的分压已通过Knudsen池质谱仪进行了测量。在这些分压下,根据最近的实验和理论分子参数得出的热函,评估了Si-6(g)= 6Si(g)的反应的雾化能量和形成Si,(g)的焓。结果,Delta(a)H(o)[Si-6(g)] = 1981 +/- 32 kJ mol(-1)和Delta(f)H(298.15)[Si-6(g)] = 733 +/- 41 kJ mol(-1)与最新理论计算的预测值进行了比较。 [参考:36]

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