摘要
测定了多种吡啶衍生物在OV-101和OV-17毛细管柱上的偏摩尔自由能变化ΔG′(ΔG)函数及其差值δ(ΔG′)。结果表明,同一取代基在杂环上的位置不同,其能量贡献亦不同。由此计算未知物的ΔG′(ΔG)值和保留指数,与实测值十分吻合,其计算方法有很好的实用意义。
In this paper, we measured the change of partial molar free energy of various pyridine derivatives (△G' or △G function) and its difference (δ(△G')) on capillary column coated with OV-101 and OV-17. The result indicates that the same substituent in different positions of hete-rocyclic ring provides different energies. Calculated by this method, the △G values and the retention index of the unknown are in good agreement with the experimental values, and this calculating method is of greatly practical significance.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1992年第2期242-245,共4页
Chemical Journal of Chinese Universities
关键词
吡啶
衍生物
偏摩尔自由能
Pyridine derivative, Partial molar free energy, Retention index
