Silver ion induced folding of alkylamines observed by ion mobility experiments
| Autor: | Nick A. van Huizen, Jérôme Cornil, Vincent Lemaur, Pascal Gerbaux, Quentin Duez, Peter C. Burgers, Julien De Winter |
|---|---|
| Přispěvatelé: | Neurology, Surgery |
| Rok vydání: | 2019 |
| Předmět: |
Reaction mechanism
Chemistry 010401 analytical chemistry 010402 general chemistry Condensed Matter Physics Tandem mass spectrometry 01 natural sciences Dissociation (chemistry) 0104 chemical sciences Ion Metal Crystallography Molecular dynamics visual_art visual_art.visual_art_medium Amine gas treating Physical and Theoretical Chemistry Instrumentation Spectroscopy Gas-phase ion chemistry |
| Zdroj: | International Journal of Mass Spectrometry, 435, 34-41. Elsevier |
| ISSN: | 1387-3806 |
| DOI: | 10.1016/j.ijms.2018.10.016 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect