In situ Raman spectra of cycloheptane have been characterized under high pressure generated by diamond anvil cell(DAC) at room temperature.
利用金刚石顶砧(DAC)装置产生高,在室温下烷进行了高原位拉曼光。
The conformational energy of n-heptane is calculated as a function of the C-C bond rotation angles with a tetradic rotation.
按作为四元组转动的C-C键旋转角的函数计算了正烷的构象能。
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The only difference is that heptane, with 7 carbons, is really unstable, whereas octane, with 8 carbons, is super stable.
唯一的区别,有7个碳原子的庚烷非常不稳定,而有8个碳原子的辛烷则极其稳定。
Octane ratings are calculated different ways in different countries, but they always compare the gas’s stability to a mixture of two molecules: heptane and octane.
不同国家计算辛烷值的方法不同,但它们总将汽油的稳定性与两种分子的混合物进行比较:庚烷和辛烷。
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