Mass spectrometry of o-, m-, and p-carboranes

Journal Article · Mon Dec 09 23:00:00 EST 1985 · Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00956088· OSTI ID:5035784

Vasyukova, N I; Mazunov, V A; Nekrasov, Y S; Sergeev, Y L; Sukharev, Y N

In order to elucidate the mechanism of the dehydrogenation process using as an example o-carborane, the authors study the dependence of the ratio of the sum of the intensities of dehydrogenated ions vs the intensities of the molecular ions (pounds(M-nH)+/M+), characterizing the degree of dehydrogenation, on the energy of the ionizing electrons at the temperature of the ionization chamber and the temperature of the insertion system. Under electron impact conditions, dehydrogenation is the main fragmentation process of isomeric carboranes. The progress of this process enhances with the increase of the energy of ionizing electrons and the temperature of the ionization chamber.

• Research Organization: A.N. Nesmeyanov Institute of Heteroorganic Compounds
• OSTI ID: 5035784
• 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. 34:6, PT. 1; ISSN BACCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
400302 -- Organic Chemistry-- Isotope Effects-- (-1987)
400500 -- Photochemistry
BORON 10
BORON 11
BORON COMPOUNDS
BORON ISOTOPES
CARBON COMPOUNDS
CARBORANES
CHARGED PARTICLES
CHEMICAL REACTIONS
COLLISIONS
DEHYDROGENATION
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ENERGY DEPENDENCE
ENERGY RANGE
EV RANGE
EV RANGE 10-100
IONIZATION
IONIZATION CHAMBERS
IONS
ISOTOPE EFFECTS
ISOTOPE RATIO
ISOTOPES
LIGHT NUCLEI
MASS SPECTRA
MASS SPECTROMETERS
MEASURING INSTRUMENTS
MOLECULAR IONS
MOLECULE COLLISIONS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PHOTOIONIZATION
RADIATION DETECTORS
SPECTRA
SPECTROMETERS
STABLE ISOTOPES