Electrospray mass spectrum of a per(onio)-substituted benzene: retention of coulombic charge upon collisionally activated decomposition.
J Am Soc Mass Spectrom
; 9(1): 15-20, 1998 Jan.
Article
em En
| MEDLINE
| ID: mdl-9679592
ABSTRACT
The hexakis (4-diemthylaminopyridyl) benzene hexacation of 1 is investigated as an extreme example of the ability of electrospray ionization to allow transfer of small multivalent ions to the gas phase. The hexacationized benzene ring ions are stabilized by forming gas phase complexes with two to five trifluoromethanesulfonate counterions. MS/MS analysis reveals that their fragmentation takes place by loss of neutrals such as trifluoromethanesulfonic acid and 4-dimethylaminopyridine; no rupture of the benzene or pyridine rings was observed in spite of accumulation of positive charge in a restricted geometry.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Derivados de Benzeno
Idioma:
En
Revista:
J Am Soc Mass Spectrom
Ano de publicação:
1998
Tipo de documento:
Article
País de afiliação:
Estados Unidos