高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (2): 242.

• 论文 • 上一篇    下一篇

吡啶衍生物的分子结构、保留指数与偏摩尔自由能变化△G值的关联——预测保留指数的一种新方法

龚健, 龚平   

  1. 湖南师范大学化学系, 长沙, 410006
  • 收稿日期:1991-03-06 出版日期:1992-02-24 发布日期:1992-02-24
  • 通讯作者: 龚健

The Correlation of Molecular Structure and Retention Index with the Change of Partial Molar Free Energy(AAAAG) of Pyridine Derivatives ——A New Method of Predicting Retention Index

GONG Jian, GONG Ping   

  1. Department of Chemistry, Hunan Normal University, Changsha, 410006
  • Received:1991-03-06 Online:1992-02-24 Published:1992-02-24

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。

关键词: 吡啶衍生物, 偏摩尔自由能, 保留指数

Abstract: 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 energiesCalculated 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.

Key words: Pyridine derivative, Partial molar free energy, Retention index

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