U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 1876 - 1900 of 1931

Mass Spectrometry of Small Cycles (C,Si,Ge)

September 29, 1983
Author(s)
Anzor Mikaia, Vladimir G. Zaikin, Valentin Vdovin
Decomposition of cyclopropane and cyclobutane containing compounds with Carbon, Silicon and Germanium atoms under mass spectrometry conditions is discussed.

Reaction chromato-mass spectrometry when studying cyclopropane compounds

May 1, 1983
Author(s)
Anzor Mikaia, Lyudmila Medvedkova, Vladimir G. Zaikin, Valentin Vdovin, A Kamisheva
A GC-MS method for structure elucidation of cyclopropane compounds is developed. The method includes the use of hydrogenolysis microreactor in the inlet system of a GC-MS and H2 or D2 as carrier and reagent gas.

Nitration of alkyl substituted 4-aryl(benzoyl)pyridynes

May 1, 1982
Author(s)
Anzor Mikaia, Nikolay A. Prostakov, Anatolyi Soldatenkov, AP Krapivko, AA Fomichev, AA Ustenko
Peri-effect leading to a base peak of [M-NO2] ion in the spectra of dinitro diarenes is described along with the synthesis of arylpyridines

Effects of stereoisomerism in the mass spectra of 2,4-disubstituted thiacyclohexanes

July 9, 1980
Author(s)
Anzor Mikaia, Elena Trusova, Lyudmila Perepelitchenko, Vladimir G. Zaikin
The stereospecificity of fragmentation for isomeric dialkyl- and methyl,phenylthiacyclohexanes under electron ionization are established. Experimentally obtained relative Ionization and appearance energies for the stereoisomers are in agreement with

Ionization and appearance potentials in organic chemistry. 3. Determination of the difference between the enthalpies of formation of cis- and trans-isomers of bicyclo[4.3.0]- nonane and bicyclo[4.4.0]decane Using Appearance Potentials

June 1, 1980
Author(s)
Anzor Mikaia, Vladimir G. Zaikin
The first adiabatic potentials of the ionization of cis and trans iosmers with respect to the linkage of the rings of bicyclo[4.3.0]nonane and bicyclo[4.4.0]decane are practically identical. for the stereoisomers of these two series have been measured. The

Mass spectrometric investigation of Alkyl-Substituted arylpyridynes

May 1, 1980
Author(s)
Anzor Mikaia, Anatolyi Soldatenkov, Vadim Fedorov, Vladimir G. Zaikin, Nikolay A. Prostakov
Electron ionization decomposition of aryl(polyalkyl)pyridines containing is studied. General fragmentation pathways and specific patterns for 2-. 3- and 4-arylsubstituted are identified
Displaying 1876 - 1900 of 1931
Was this page helpful?