Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Vladimir A. Tolkatchev"'
Autor:
Vladimir A. Tolkatchev
Publikováno v:
Chemical Physics. 289:335-347
The effect of medium local relaxation, resulting from dipole reorientation, on a complex dielectric susceptibility is analyzed. The system of dipoles that have two possible orientations in space is considered. They can jump from one orientation into
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6d8f566dd239f253dd7ee1faf901321
https://doi.org/10.1016/s0301-0104(03)00059-4
https://doi.org/10.1016/s0301-0104(03)00059-4
Publikováno v:
Reaction Kinetics and Catalysis Letters. 77:293-299
ESR spectroscopy has been used to follow the kinetics of decay of radicals produced by UV-radiation in PMMA films upon exposure to oxygen in the temperature range 160-210 K. In the same films and at the same conditions, decay kinetics of phenanthrene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ffb3cfb1d5268edfd63ac9a32647025
https://doi.org/10.1023/a:1020883818258
https://doi.org/10.1023/a:1020883818258
Publikováno v:
Physical Chemistry Chemical Physics. 2:3797-3800
The decay kinetics of methyl radical isotopomers has been studied at 77 K in glassy mixtures xR′HOH+(1−x)CD3OH, where R′HOH is either CH3OH or C2H5OH. In matrices with a small fraction of H component (x⩽0.02) the CD3 radicals decay twice as q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00c168005dfb2bed13f5b7185ecec7de
https://doi.org/10.1039/b002210l
https://doi.org/10.1039/b002210l
Publikováno v:
Reaction Kinetics and Catalysis Letters. 68:325-330
The capture of oxygen molecules by deep traps during oxygen diffusion in butanol glasses has been studied at 77 K as the kinetics of thetert-butyl radical oxidation. Slow glass formation in the samples increases the concentration of deep traps in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6af72f70820168b920cbeee19503cd79
https://doi.org/10.1007/bf02475520
https://doi.org/10.1007/bf02475520
Publikováno v:
Chemical Physics. 236:291-300
The kinetics of methyl radicals decay has been studied at 77 K and at 90 K in glassy mixtures 0.9(xC2H5OH+(1−x)C2D5OH)+0.1H2O. It has been shown that in matrices with a small content of H-component (x≲0.02) the decay rate of CD3 radicals is notic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db9ee399d5bcd06b549327a3e8cc1b91
https://doi.org/10.1016/s0301-0104(98)00172-4
https://doi.org/10.1016/s0301-0104(98)00172-4
Autor:
S. V. Vasenkov, Vladimir A. Tolkatchev
Publikováno v:
Reaction Kinetics and Catalysis Letters. 64:325-330
Capture of oxygen molecules by deep traps upon their diffusion in methanol/water glasses has been studied at 77 K. Deep traps may exist in matrices in which the oxidation of alkyl radicals is described by a time-dependent rate constant.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a681361c3316e0f4d887462f1f1f12f9
https://doi.org/10.1007/bf02475352
https://doi.org/10.1007/bf02475352
Publikováno v:
Chemical Physics. 216:135-145
ESR technique has been used to study the kinetics of methyl radicals decay at 90K in glassy ethanol-1,2d5 with an admixture of diethyl ether and C2H5OH ethyl alcohol. It has been demonstrated that methyl radicals migrate freely throughout the sample.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d214d301bd669fab14ad82a4d65fa55
https://doi.org/10.1016/s0301-0104(96)00354-0
https://doi.org/10.1016/s0301-0104(96)00354-0
Publikováno v:
Chemical Physics. 212:149-156
The conductivity relaxation due to Na + ions and the decay of radiation-induced centers controlled by Ag + ion diffusion have been studied in phosphate glasses with a high content of Na 2 O. Both of the processes display a nonexponential kinetic beha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e2bd91d29fcc43cc86f37f0d3f9d859
https://doi.org/10.1016/s0301-0104(96)00186-3
https://doi.org/10.1016/s0301-0104(96)00186-3
Publikováno v:
Chemical Physics. 195:313-327
The ESR technique has been used to study the kinetics of the reaction of methyl and ethyl radicals with the additives of hydrogen-substituted alcohols CH3OH, C2H5OH, and CH3CD2OH, dissolved in glassy methanol-d3 within the temperature range 77–92 K
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96115ec6ca7534ab1e7f93910ccbd7c3
https://doi.org/10.1016/0301-0104(95)00063-t
https://doi.org/10.1016/0301-0104(95)00063-t
The influence of deep traps for gas molecules on oxygen transport in the glaas of 2-methylpentanol-2
Publikováno v:
Chemical Physics. 195:305-311
The kinetics of the two processes (radical oxidation and phenanthrene phosphorescence quenching by oxygen) caused by diffusion of O2 molecules, have been studied in the glassy matrix of 2-methylpentanol-2. It has been established that: (i) the anneal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::335d8e7eb38fcdda3a23b22518939561
https://doi.org/10.1016/0301-0104(95)00027-l
https://doi.org/10.1016/0301-0104(95)00027-l