Premium
Mass spectra of organoarsenic compounds—I: Electron‐impact‐induced fragmentations of esters of arsenious and thioarsenious acid
Author(s) -
Frøyen Paul,
Møller Jørgen
Publication year - 1973
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210070112
Subject(s) - chemistry , fragmentation (computing) , arsenic , mass spectrum , ion , divalent , metastability , hydrogen , electron ionization , inorganic chemistry , organic chemistry , computer science , ionization , operating system
The mass spectra of a series of esters of arsenious and thioarsenious acid have been studied, together with that of diethyl methylarsonite. The main fragmentation pathways have been determined with the use of high resolution mass measurements and application of the metastable defocusing technique. The major fragment ions all contain arsenic and may be ascribed structures implying divalent/trivalent arsenic. Ions implying tetravalent/pentavalent arsenic as well as double hydrogen rearrangement processes are hardly recognisable; this is in contrast to the findings reported for the corresponding phosphorous compounds, with which a comparison is made. The present results are in accordance with the view that arsenic is less capable than phosphorous of achieving multiple bonding to other atoms by means of its empty d orbitals.