吡啶、苯系物和季碳原子的有效碳数贡献研究

Contribution of Pyridyl, Phenyl and Quaternary Carbon Structure to the Effective Carbon Number

在气相色谱(GC)中,FID对绝大多数有机化合物都有很灵敏的响应,且响应大小和有机物的有效碳含量有关。七十年代初,Clementi等证明了含N,O,S的茂杂环衍生物的有效碳数(N_c)比分子中实际碳原子数减少了一个单位;至今对六员杂环衍生物的N_c未见报道,本文对吡啶衍生物的N_c作了探讨。

The effective carbon numbers (EGN) in the condition of gas chromatography with flame ioni-zation detector contributed from pyridine and α-,β-and γ-pyridyl groups were determined,which were 4.00,3.59.3.69,3.79 respectively.The relative Weight correction factors for more than twenty pyridine derivatives were approximately calculated.A brief discussion about the determined values mentioned above and the contribution of phenyl group and quaternary carbon atom to the ECN is given.