A MASS-SPECTROMETRIC STUDY OF GASEOUS H4PO3+ AND H2PO3- IONS

被引：6

作者：

DEPETRIS, G

OCCHIUCCI, G

PEPI, F

机构：

[1] CNR, IST CHIM NUCL, I-00016 ROME, ITALY

[2] UNIV ROMA LA SAPIENZA, I-00185 ROME, ITALY

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | 1994年 / 136卷 / 2-3期

关键词：

TAUTOMERISM; PHOSPHORUS AND PHOSPHONIC ACIDS; PROTON AFFINITY; PHOSPHORUS POLYANIONS;

D O I：

10.1016/0168-1176(94)04022-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

H4PO3+ ions have been generated in a mass spectrometer by proton-transfer to H3PO3 from different Bronsted acids. The proton affinity of H3PO3 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 dissociation (CID) mass spectrometry leading to the detection of a single isomeric species. The chemistry of H2PO3- is characterized by facile addition-elimination reactions leading to formation of polyanions. Species containing up to six P atoms have been detected.

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收藏

页码：155 / 166

页数：12

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