Direct Experimental Characterization of Glycosyl Cations by Infrared Ion Spectroscopy.
Hidde ElferinkMarion E SeverijnenJonathan K MartensRens A MensinkGiel BerdenJos OomensFloris P J T RutjesAnouk M RijsThomas J BoltjePublished in: Journal of the American Chemical Society (2018)
Glycosyl cations are crucial intermediates formed during enzymatic and chemical glycosylation. The intrinsic high reactivity and short lifetime of these reaction intermediates make them very challenging to characterize using spectroscopic techniques. Herein, we report the use of collision induced dissociation tandem mass spectrometry to generate glycosyl cations in the gas phase followed by infrared ion spectroscopy using the FELIX infrared free electron laser. The experimentally observed IR spectra were compared to DFT calculated spectra enabling the detailed structural elucidation of elusive glycosyl oxocarbenium and dioxolenium ions.
Keyphrases
- tandem mass spectrometry
- high resolution
- ionic liquid
- ultra high performance liquid chromatography
- density functional theory
- high performance liquid chromatography
- liquid chromatography
- molecular docking
- gas chromatography
- simultaneous determination
- single molecule
- solid phase extraction
- high glucose
- diabetic rats
- hydrogen peroxide
- solid state
- mass spectrometry
- high speed
- quantum dots
- ms ms
- drug induced
- endothelial cells
- molecular dynamics simulations