Stability of Odd- Versus Even-Electron Gas-Phase (Quasi)Molecular Ions Derived from Pyridine-Substituted N-Heterotriangulenes.
Sign Up to like & getrecommendations! Published in 2017 at "ChemPlusChem"
DOI: 10.1002/cplu.201600416
Abstract: Electrospray ionisation of N-heterotriangulenes (i.e., dimethylmethylene-bridged triphenylamines) with up to three pyridyl groups at their periphery, produces the true radical cation ([M]+ . ) and the protonated molecule ([M+H]+ ) simultaneously. These ions are studied… read more here.
Keywords: stability odd; even electron; odd versus; versus even ... See more keywords
Radical fragment ions in collision-induced dissociation-based tandem mass spectrometry.
Sign Up to like & getrecommendations! Published in 2022 at "Analytica chimica acta"
DOI: 10.1016/j.aca.2022.339613
Abstract: Collision-induced dissociation (CID) is a common fragmentation strategy in tandem mass spectrometry (MS2) analysis. A conventional understanding is that fragment ions generated in low-energy CID should follow the even-electron rule. As such, (de)protonated ([M+H]+/[M-H]-) or… read more here.
Keywords: ms2; collision; fragment ions; even electron ... See more keywords