Zobrazeno 1 - 6
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pro vyhledávání: '"V. A. Radzig"'
Autor:
V. A. Radzig, A. A. Ischenko
Publikováno v:
Kinetics and Catalysis. 52:316-329
The structure of paramagnetic centers (PMC) in carbon-doped silica is studied by the EPR and quantum chemistry methods. Three types of radicals, ≡Si-·CH2, (≡Si-)2·CH and (≡Si-)3C·, are identified in which the free valence is localized on the
Autor:
V. A. Radzig, D. G. Permenov
Publikováno v:
Kinetics and Catalysis. 45:265-272
The methods of optical and IR spectroscopy and quantum chemistry were used to obtain data on the direction and kinetics of the reaction of a silanone (≡SiO)2Si=O with a CH4 molecule and a methyl radical. Two mechanisms of methylation of silanone gr
Autor:
D. G. Permenov, V. A. Radzig
Publikováno v:
Kinetics and Catalysis. 45:14-23
Experimental and quantum chemical study of reactive silica surface methylation is carried out. The main product of the reaction is the (≡Si–O)2Si(H)(CH3) groups, which are formed via a radical-chain process with the participation of methane molec
Autor:
V. A. Radzig, S. N. Kostritsa
Publikováno v:
Russian Chemical Bulletin. 46:1403-1406
A method for preparing >Si(R1(R2.) structures (R1=CH3, CD3, or CH2−CH3, R2.=CH2−CH2. or CD2−CD2.) grafted to a silica surface is developed. The reactions of intramolecular transfer of H (D) atoms between the R1 and R2. fragments were studied by
Publikováno v:
The Journal of Physical Chemistry. 99:6640-6647
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 248:91-96
Some new reactions of electronically excited radicals (vinyl, cyclohexadienyl, peroxy and thiylperoxy) were investigated both by the traditional method (in solid freezing matrices of different nature) and through the use of matrix isolation method on