𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Formation of [M − H]+ ions in electron impact mass spectra of nitrosocarbonyl compounds α- and γ-nitrosocarbonyl compounds

✍ Scribed by Leszek Konopski

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
317 KB
Volume
25
Category
Article
ISSN
1076-5174

No coin nor oath required. For personal study only.

✦ Synopsis

The presence of the [M + HI+ ions and the absence of the monomer molecular ions M" in the mass spectra of some tertiary a-and y-nitrosocarbonyl compounds is reported. This effect is caused by the rearrangement of the mobile hydrogen in the a-carbonyl position in the fragmentation pattern of the dimer molecular ions 2M".

📜 SIMILAR VOLUMES

Electron impact mass spectra of new α,β-
Electron impact mass spectra of new α,β-or β,γ-unsaturated α-amino esters
✍ G. Bourgeois; M. Bouhris; R. Golse 📂 Article 📅 1984 🏛 John Wiley and Sons 🌐 English ⚖ 158 KB

Protected thymidylic a c i d 018 Triazolyl derivative 867 B-I25 I76 Figure 5. Triazolyl derivative of the thymine mononucleotide (the compounds are dichlorophenyl phosphates). quasi-molecular ion m/z 818 associated with the base fragment m/z 176, the respective underivatized peaks being m/z 867 and

Fluorinated tropylium ions in the mass s
Fluorinated tropylium ions in the mass spectra of some polyfluoroaromatic compounds
✍ M. I. Bruce; Mair A. Thomas 📂 Article 📅 1968 🏛 John Wiley and Sons 🌐 English ⚖ 360 KB

The most prominent ion in the mass spectra of C,F,CH,X (X = H, Br, CH:CH,, COCI, and CH,C6F5) is C,F5H2+, formulated as the pentafluorotropylium cation. This ion is also found, in an amount comparable to the parent ion, in the spectrum of (CBF5)\*CH2. The heptafluorotropylium cation is found similar

Anomalies in the molecular ion region in
Anomalies in the molecular ion region in the electron impact mass spectra of α- and β-hydroxyesters
✍ Leszek Konopski 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 312 KB

## Abstract In the electron impact mass spectra of some alkyl α‐ and β‐hydroxyesters (introduced using the gas chromatography/mass spectrometry (GC/MS) technique), the absence of the molecular ion M^+·^ and the presence of the [M + 1]^+^ ion instead is observed. This phenomenon is especially charac