Abstract

New data have been obtained on the fragmentation of a threonine (\(\hbox {C}_{{4}}\hbox {H}_{{9}}\hbox {NO}_{{3}}\)) molecule (i.e., ionized product formation) under low-energy electron impact. This was accomplished using a mass spectrometric experimental technique in combination with an extensive DFT-theory approach. Based on the results, the main pathways of threonine molecule’s fragment yield are suggested. The absolute values of the appearance energies for some ion fragments have been experimentally measured, theoretically calculated, and analyzed.

Graphic abstract

中文翻译：

---

低能电子撞击下苏氨酸的裂解

摘要

已获得关于苏氨酸碎片的新数据（\（\ hbox {C} _ {{4}} \ hbox {H} _ {{9}} \ hbox {NO} _ {{3}} \））分子在低能电子撞击下（即形成离子化产物）。这是通过使用质谱实验技术结合广泛的DFT理论方法来完成的。根据这些结果，提出了苏氨酸分子片段产生的主要途径。已经通过实验测量，理论计算和分析了一些离子碎片的出现能的绝对值。

图形摘要