Transition state structure of the reaction of homolytic dissociation of the C-N bond and competition between dif erent mechanisms of the primary act of gas-phase monomolecular decomposition of nitrobenzene

Russian Chemical Bulletin - Various mechanisms of the primary act of gas-phase monomolecular thermal decomposition of nitrobenzene were studied theoretically. The following reactions were...     

New mechanisms of optical writing/reading in magnetic media

Optical detection of magnetic features of 0.1 μm or less in size, as well as their generation and motion due to laser shots, is described. The physical effects discovered make it possible to implement the basic functions of a memory device (writing, shift in a storage register, and reading) by purely optical means. These effects can form a basis for designing novel ultra-high-density solid-state memories with optical access and control.     

Reaction of phenylsulfenyl chloride with C-(N,N-dimethylamino)-methylene-P-phenylphosphine

PhSCl adds regiospecifically to the P=C double bond in C-(N,N-dimethylamino)-methylene-P-phenylphosphine to give PhP(SPh)₂ and Cl₂CHNMe₂.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 948–949, April, 1991.     

Quantitative determination of ajmaline in drug raw material

Leningrad Institute of Pharmaceutical Chemistry. Translated from Khimiya Prirodnykh Soedinenii, No. 1, p. 147, January–February, 1991.     

Radial distribution function and the speed of sound in dense gases and liquids

An expression for the speed of sound is derived in terms of the radial distribution function and its temperature derivative. Since the radial distribution function and the speed of sound can be determined independently from experiments, the relation found can be used to analyze the substance’s phase diagram and the thermodynamic consistency of the equations of state.     

Reaction of peroxydisulfuryl difluoride with some nitroaromatic compounds

Conclusions The reaction of peroxydisulfuryl difluoride with nitro-, chloronitro-, and ethylnitrobenzenes gave the previously unknown fluorosulfates, in which connection the ethylnitrobenzenes are substituted in the nucleus under these conditions.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2638–2640, November, 1981.