Formation of the 3-Pentanone ion from ionized propyl propanoate through Ion-Neutral complexes.
J Am Soc Mass Spectrom
; 3(3): 183-7, 1992 Mar.
Article
em En
| MEDLINE
| ID: mdl-24242940
ABSTRACT
Formation of the 3-pentanone ion (3) from ionized propyl propanoate through the complex [C2H5CO(+) (â¢)OC3H7] is proposed based on data obtained by photoionization. The threshold and energy dependence for forming 3 relative to those for related processes support this proposal. The threshold for forming 3 coincides with that predicted for forming [CH3CH2CO(+) (â¢)CH2CH3], suggesting that that complex is also an intermediate in the pathway to 3. 3-Pentanone ion formation is important much further above threshold than is alkane elimination through [RCO(+) (â¢)R] complexes. This adds to evidence that reactions between the partners in ion-dipole complexes take place over a wider energy range than do such reactions in complexes containing nonpolar neutral partners.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
J Am Soc Mass Spectrom
Ano de publicação:
1992
Tipo de documento:
Article
País de afiliação:
Austrália