Mass spectra of the isothiocyanato-derivatives of trimeric and tetrameric cyclophosphazenes
- 1 January 1971
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 596-599
- https://doi.org/10.1039/j19710000596
Abstract
The mass spectra of the isothiocyanato-derivatives of trimeric and tetrameric cyclophosphazenes have been obtained at an electron energy of 70 eV. The majority (80·85% for the trimer, 80·75% for the tetramer) of the fragmentation products are cyclic species, based on a N3P3 or N4P4 ring. The corresponding linear species N2P3 and N3P4 are absent. Fragmentation of the NCS groups takes place, either by the removal of a sulphur atom, the loss of a molecule S2, or the loss of a molecule CS2. Various processes, such as the removal of NCS groups, the decomposition of NCS groups, and, for the tetrameric fragments, contraction from the eight- to the six-membered ring, are visible in the form of metastable ions.Keywords
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