| Autor: |
Selva, A., Zerilli, L. F., Cavalleri, B., Gallo, G. G. |
| Zdroj: |
Organic Mass Spectrometry; 1972, Vol. 6 Issue 12, p1347-1351, 5p |
| Abstrakt: |
The electron-impact induced fragmentation of 3,5-diphenyl-1,2,4-oxadiazole has been investigated by labelling experiments, defocused metastable ion detections and high resolution mass measurements. The main fragmentation process suggests heterocyclic cleavage at the 1 to 5 and 3 to 4 bonds confirming our previous interpretation. The structure of the major fragment ion [C7H5NO]+· has been interpreted as being represented by the isomeric benzonitrile oxide and phenylisocyanate structures, the latter isomerising irreversibly from the former. The benzonitrile oxide structure is consistent with [C7H5NO]+· formation by cleavage of the 1 to 5 and 3 to 4 bonds. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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