A MASS-SPECTROMETRIC STUDY OF GASEOUS H4PO3- IONS( AND H2PO3)

Authors
DEPETRIS G OCCHIUCCI G PEPI F
Citation
G. Depetris et al., A MASS-SPECTROMETRIC STUDY OF GASEOUS H4PO3- IONS( AND H2PO3), International journal of mass spectrometry and ion processes, 136(2-3), 1994, pp. 155-166
Citations number
28
Categorie Soggetti
Spectroscopy,"Physics, Atomic, Molecular & Chemical
Journal title
International journal of mass spectrometry and ion processes → ACNP
ISSN journal
01681176
Volume
136
Issue
2-3
Year of publication
1994
Pages
155 - 166
Database
ISI
SICI code
0168-1176(1994)136:2-3<155:AMSOGH>2.0.ZU;2-J
Abstract
H4PO3+ ions have been generated in a mass spectrometer by proton-trans fer to H3PO3 from different Bronsted acids. The proton affinity of H3P O3 has been estimated by bracketing and kinetic methods to be 198.6 +/ - 2 kcal mol(-1). Gaseous H4PO3+ ions have been structurally assessed by metastable ion kinetic energy (MIKE) and collisionally induced diss ociation (CID) mass spectrometry leading to the detection of a single isomeric species. The chemistry of H2PO3- is characterized by facile a ddition-elimination reactions leading to formation of polyanions. Spec ies containing up to six P atoms have been detected.