Dissociation mechanism of HNIW ions investigated by Chemical Ionization and Electron Impact Mass spectroscopy

Rongjie Yang*, Hemiao Xiao

*此作品的通讯作者

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11 引用 (Scopus)

摘要

Chemical Ionization (CI) with Collision-Induced Dissociation (CID) spectroscopy and Electron Impacting (El) with metastable Mass analyzed Ion Kinetic Energy (MIKE) spectroscopy have been applied to study ionic dissociations of Hexanitrohexaazaisowurtzitane (HNIW). Similarities and differences between EI/MIKE and CI/CID mass spectra of HNIW were analyzed. In El mass spectra, the ions [HNIW-n NO2]+ (n = 2-5), such as the ion at m/z 347, were less frequent (1 - 2% relative abundance), but in CI mass spectra, these ions were very abundant. For some ions of large molar mass from HNIW, their dissociations pathways from parent ions to daughter ions were built according to CID and MIKE spectra. Molecular ions of HNIW with a protonated nitro group at five-member ring seem more stable than at six-member ring. The HNIW ions losing five of six nitro groups are very stable based on CID spectra, which agrees with some research results for thermal decomposition of HNIW in literature.

源语言英语
页(从-至)148-154
页数7
期刊Propellants, Explosives, Pyrotechnics
31
2
DOI
出版状态已出版 - 4月 2006

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