✦ LIBER ✦

Secondary Dissociation Reactions of C2H2N+ and CHN2+ Ions in the Charge Separation Mass Spectra of Five-membered Nitrogen Heterocycles

✍ Scribed by Hsieh, Shizuka; Eland, John H. D.

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 749 KB
Volume: 31
Category: Article
ISSN: 1076-5174
DOI: 10.1002/(sici)1096-9888(199609)31:9<1054::aid-jms395>3.0.co;2-0

No coin nor oath required. For personal study only.

✦ Synopsis

Dication dissociations of the five-membered nitrogen heterocycles (pyrrole, imidazole, pyrazole, 1,2,3-triazole, 1,2,4triazole and tetrazole) were investigated using charge separation mass spectrometry. Differences in the spectra for isomer pairs reflect an absence of C,N scrambling prior to fragmentation. Kinetic energy releases show that the rapid charge separations occur from a ring configuration but slow metastable decays proceed by ring opening. The major charge separation reactions produce the protonated analogues of HCN and N, , HCNH+ and HN,*; the complementary partner ions, C,H,N+ and CHN,+, undergo secondary decay to HCNH', HCN or N, , which can be compared with similar reactions of these ions in collision-induced dissociation.

📜 SIMILAR VOLUMES

ChemInform Abstract: Five-Membered 2,3-D

ChemInform Abstract: Five-Membered 2,3-Dioxo Heterocycles. Part 62. Reaction of 3-Aroyl-1H-pyrrolo[2,1-c][1,4]benzoxazine-1,2,4-triones with N,N′-Dihydroxycyclohexane-1,2-diamine. Unusual Rearrangement in the Spiro[quinoxaline-2,2′-pyrrole] System.

✍ I. V. Mashevskaya; Z. G. Aliev; D. G. Mazhukin; S. A. Popov; A. Ya. Tikhonov; A. 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 22 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v