Gas Chromatography-Mass Spectrometric Studies of <i>O</i>-Alkyl <i>O</i>-2-(<i>N,N</i>-Dialkylamino) Ethyl Alkylphosphonites(Phosphonates) for Chemical Weapons Convention Verification
作者:Hamid Saeidian、Mehran Babri、Atefeh Ramezani、Davood Ashrafi、Mansour Sarabadani、Mohammad Taghi Naseri
DOI:10.1255/ejms.1234
日期:2013.10
theory (DFT) calculations. The observed fragment ions are due to different fragmentation pathways such as hydrogen and McLafferty+1 rearrangements, alkene, amine and alkoxy elimination by α- or β-cleavage process. Fragment ions distinctly allow unequivocal identification of the interested compounds including those of isomeric compounds. The presence and abundance of fragment ions were found to depend on
研究了一系列 O-烷基 O-2-(N,N-二烷基氨基) 乙基烷基亚膦酸酯 (膦酸酯) 的电子电离 (EI) 质谱,它们是神经毒剂的前体,用于化学武器公约 (CWC) 验证。构建并讨论了一般的 EI 碎裂途径。通过分析氘代类似物的碎片离子和密度泛函理论 (DFT) 计算,确认了建议的碎片结构。观察到的碎片离子是由于不同的碎裂途径,例如氢和 McLafferty+1 重排,烯烃、胺和烷氧基通过 α-或 β-裂解过程消除。碎片离子清楚地允许明确鉴定感兴趣的化合物,包括异构化合物的那些。