Article (Scientific journals)
A Mechanistic Study of Protonated Aniline to Protonated Phenol Substitution Considering Tautomerization by Ion Mobility Mass Spectrometry and Tandem Mass Spectrometry
Kune, Christopher; Delvaux, Cédric; Haler, Jean et al.
2019In Journal of the American Chemical Society, 30, p. 2238-2249
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Keywords :
Ion mobility; tautomers; aniline; Phenol; Gas-phase reaction
Abstract :
[en] We report the use of ion mobility mass spectrometry (IMMS) and energy-resolved collisional activation to investigate gas-phase reactions of protonated aniline and protonated phenol. Protonated aniline prototropic tautomerization and nucleophilic substitution (SN1) to produce phenol with traces of water in the IMMS cell are reported. Tautomerization of protonated phenol and its ability to form protonated aniline in presence of ammonia in the gas phase are also observed. These results are supported by energy landscapes obtained from computational chemistry. These structure modifications in the IMMS cell affected the measured collision cross section (CCS). A thorough understanding of the gas-phase reactions occurring in IMMS appears mandatory before using the experimental CCS as a robust descriptor which is stated by the recent literature.
Research center :
MolSys - Molecular Systems - ULiège
Disciplines :
Chemistry
Author, co-author :
Kune, Christopher  ;  Université de Liège - ULiège > Département de chimie (sciences) > Laboratoire de spectrométrie de masse (L.S.M.)
Delvaux, Cédric  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie analytique inorganique
Haler, Jean ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie analytique inorganique
Quinton, Loïc  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie biologique
Eppe, Gauthier  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie analytique inorganique
De Pauw, Edwin  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie analytique inorganique
Far, Johann  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie analytique inorganique
Language :
English
Title :
A Mechanistic Study of Protonated Aniline to Protonated Phenol Substitution Considering Tautomerization by Ion Mobility Mass Spectrometry and Tandem Mass Spectrometry
Publication date :
13 September 2019
Journal title :
Journal of the American Chemical Society
ISSN :
0002-7863
eISSN :
1520-5126
Publisher :
American Chemical Society, United States - District of Columbia
Volume :
30
Pages :
2238-2249
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 15 January 2020

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