Positive ion chemistry of SiH4/GeF4 gaseous mixtures studied by ion trap mass spectrometry and ab initio calculations.
Eur J Mass Spectrom (Chichester)
; 17(3): 197-206, 2011.
Article
em En
| MEDLINE
| ID: mdl-21828411
ABSTRACT
The positive ion chemistry occurring in SiH(4)/GeF(4) gaseous mixtures was investigated by ion trap mass spectrometry and ab initio theoretical calculations. The GeF(3)(+) cation, the only fragment obtained from ionized GeF(4), was unreactive towards SiH(4). All the primary ions SiH(n)(+) (n = 0-3) react instead with GeF(4) so to form SiF(+) or SiH(2)F(+). The latter species reacts in turn with SiH(4) and GeF(4) so to form SiH(3)(+) and SiHF(2)(+), respectively. The potential energy profiles conceivably involved in these reactions were investigated by ab initio calculations performed at the MP2 and coupled cluster (CCSD(T)) level of theory.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Eur J Mass Spectrom (Chichester)
Ano de publicação:
2011
Tipo de documento:
Article