On the structure of water-alcohol and ammonia-alcohol protonated clusters.
J Am Soc Mass Spectrom
; 4(6): 507-12, 1993 Jun.
Article
em En
| MEDLINE
| ID: mdl-24235010
ABSTRACT
Collision-induced dissociation (CID) of protonated ammonia-alcohol and water-alcohol heteroclusters was studied using a triple quadrupole mass spectrometer with a corona discharge atmospheric pressure ionization source. CID results suggested that the ammonia-alcohol clusters had NH at the core of the cluster and that hydrogen-bonded alcohol molecules solvated this central ion. In contrast, CID results in water-alcohol clusters showed that water loss was strongly favored over alcohol loss and that there was a preference for the charge to reside on an alcohol molecule. The results also indicated that a loose chain of hydrogen-bonded molecules was formed in the water-alcohol clusters and that there appeared to be no rigid protonation site or a fixed central ion. (J Am Soc Mass.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
1993
Tipo de documento:
Article