https://doi.org/10.1140/epjd/e2014-40819-x
Regular Article
Stability of the glycine cation in the gas phase after interaction with multiply charged ions*
1 CIMAP, UMR
6252-CEA/CNRS/ENSICAEN/UCBN, Boulevard Henri Becquerel, BP
5133, 14070
Caen Cedex 5,
France
2 Université de Caen Basse-Normandie,
Esplanade de la Paix, CS
14032, 14032
Caen Cedex 5,
France
3 Departamento de Química, Módulo 13,
Universidad Autónoma de Madrid, 28049
Madrid,
Spain
4 Instituto Madrileño de Estudios
Avanzados en Nanociencias (IMDEA-Nanociencia), Cantoblanco, 28049
Madrid,
Spain
a e-mail: maclot@ganil.fr
Received:
20
December
2013
Received in final form:
7
March
2014
Published online:
23
June
2014
This study presents a coupled experimental and theoretical work on the stability of singly charged glycine molecules (NH2CH2COOH+, the simplest amino acid) produced in the collision of neutral glycine with low-energy multiply charged ions in the gas phase. The main fragments observed experimentally result from Cα-Ccarboxyl bond cleavage. Additionally, some fragments are produced after an intramolecular rearrangement of the glycine cation, in particular the loss of a neutral water molecule following a H-migration. Moreover, this work discusses qualitatively the energy transferred to the molecule in the collision with a comparative study of the fragmentation patterns for different projectile ion charge states.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2014