Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 28, Issue 9, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202104078
Keywords
DFT calculations; heterocycles; ion spectroscopy; N-acyliminium ion; stereoselectivity
Categories
Funding
- ERC-Stg (Glycoedit) [758913]
- NWO-TTW [15769]
- NWO-Rekentijd grant [2019.062]
- Dutch Research Council (NWO) [184.034.022]
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This study characterized cyclic N-acyliminium ions in the gas phase through collision induced dissociation tandem mass spectrometry and infrared ion spectroscopy, providing valuable insights into their conformations through comparison of DFT calculated spectra with experimentally observed IR spectra.
N-Acyliminium ions are highly reactive intermediates that are important for creating CC-bonds adjacent to nitrogen atoms. Here we report the characterization of cyclic N-acyliminium ions in the gas phase, generated by collision induced dissociation tandem mass spectrometry followed by infrared ion spectroscopy using the FELIX infrared free electron laser. Comparison of DFT calculated spectra with the experimentally observed IR spectra provided valuable insights in the conformations of the N-acyliminium ions.
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