化学
离解(化学)
离子
离子迁移光谱法
折叠(DSP实现)
金属
胺气处理
碰撞诱导离解
齿合度
串联
碳氢化合物
串联质谱法
质谱法
无机化学
有机化学
复合材料
工程类
材料科学
电气工程
色谱法
作者
Quentin Duez,Nick A. van Huizen,Vincent Lemaur,Julien De Winter,Jérôme Cornil,Peter C. Burgers,Pascal Gerbaux
标识
DOI:10.1016/j.ijms.2018.10.016
摘要
Recent studies point to an additional stability of metal-complexed functionalized hydrocarbon chains. This additional stabilization is suggested to arise from a bidentate complexation of the metal cation with both the functional group and aliphatic chain, leading to more folded structures. In the present work, this issue is verified for silver complexed alkylamines by tandem mass spectrometry and ion mobility experiments combined with quantum-chemical calculations. Upon increasing the length of the hydrocarbon chains, the alkylamine/silver complexes undergo a structural transition to reach a folded structure in which the silver cation interacts with both the amine group and hydrogen atoms located at the chain end. This folding is further examined by monitoring the loss of AgH upon collision-induced dissociation experiments performed on alkylamines with different chain lengths. Ion mobility experiments performed on the fragment ions indicate that the removal of the silver cation induces the unfolding of the chain.
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