Electron-impact mass spectra of nitromethylpyridines

Journal Article · Fri Jun 20 04:00:00 UTC 1986 · Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States)

OSTI ID:6226132

Pal'mbakh, G G; Gakh, A A; Khutoretskii, V M; Chizhov, O S

The authors studied the behavior of a series of di- and trinitromethyl-pyridines upon electron impact. The presence of mass spectral peaks for ions formed as a result of the loss of one or several NO/sub 2//sup ./ groups and/or NO/sup ./ groups from the molecular and fragmentation ions permits determination of the number of nitro groups in the molecule studied. Furthermore, the elimination of a hydroxyl group from the (M-NO/sub 2/)/sup +/ ion, which is not found in the trinitromethyl-pyridine series, is characteristic of the dinitromethyl derivatives. Under conditions of electron-impact mass spectrometry, nitromethylpyridines were found to form molecular ions whose stability depends on the position of the substituent. The nature of the fragmentation of the molecular ions permits them to distinguish trinitromethyl from dinitromethyl substituents.

• Research Organization: N.D. Zelinskii Institute of Organic Chemistry, Moscow, USSR
• OSTI ID: 6226132
• Journal Information: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Journal Name: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States) Vol. 34:12; ISSN BACCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
640304 -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
AZINES
CHARGED PARTICLES
COLLISIONS
DISSOCIATION
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ENERGY RANGE
EV RANGE
EV RANGE 10-100
HETEROCYCLIC COMPOUNDS
IONIZATION
IONIZATION CHAMBERS
IONS
MASS SPECTRA
MASS SPECTROMETERS
MEASURING INSTRUMENTS
MOLECULAR IONS
MOLECULE COLLISIONS
NITRO COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
RADIATION DETECTORS
SPECTRA
SPECTROMETERS
STRUCTURAL CHEMICAL ANALYSIS