The proton affinities of amin-alkanes. A test case for the kinetic method

被引：15

作者：

Cao, J ^{[1
]}

Holmes, JL ^{[1
]}

机构：

[1] Univ Ottawa, Dept Chem, Ottawa, ON K1N 6N5, Canada

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | 2000年 / 195卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

kinetic method; proton affinity (PA); amines;

D O I：

10.1016/S1387-3806(99)00175-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Metastable ion and collision-induced dissociations of proton bound pairs of n-, sec-, and tert-alkyl amines have been studied by tandem mass spectrometry. The logarithms of the product ion ratios were found to be linear functions of the proton affinities (PA) of the amines as expected for the "kinetic method." However, the assumption that transition state entropies were closely similar for all pairs proved to be unjustified. Revised PA values for benzylamine and 2-phenylethylamine were proposed. (C) 2000 Elsevier Science B.V.

引用

页码：525 / 532

页数：8

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