{'fraction_non_alphanumeric': 0.032133676092544985, 'fraction_numerical': 0.0, 'mean_word_length': 5.038759689922481, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Studies on electron impact-induced fragmentation of nitro- and nitrosobenzene molecular ions

The pathways of fragmentation of electron impact-excited molecular ions of o- and p-dinitrobenzenes, o- and p-iodonitrobenzenes, and p-dinitrosobenzene were studied by field defocusing. The first stage in the fragmentation of the molecular ions of o- and p-dinitrobenzenes is an oxygen atom or a nitro group splitting off. The nitro-nitrite rearrangement of these compounds is only observed at the stage of formation of the nitrobenzene ion-radical. For iodonitrobenzene isomers, the nitro-nitrite rearrangement is observed at a first act of electron impact (EI)-induced fragmentation. Nitrogen-atom elimination is found to be one of the fragmentation routes of a p-dinitrobenzene ion