R 30 Reactivity of congeners of Sovol technical mixture of polychlorinated biphenyls toward sodium methoxide [Electronic resource] / O. N. Zabelina, T. I. Gorbunova, M. G. Pervova, V. E. Kirichenko, A. Ya. Zapevalov, V. I. Saloutin, O. N. Chupakhin // Russian Journal of Applied Chemistry. - 2004. - Vol. 77, № 9. - P1523-1527. - Библиогр. : с. 1527 (6 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The reaction of Sovol technical mixture of polychlorobiphenyls with sodium methoxide in bipolar aprotic solvents was studied. The reactivity of polychlorobiphenyls was evaluated using gas chromatography and gas chromatography-mass spectrometry. \\\\Cserver\\dist\\НБО\\Электронная библиотека_Библиогр1\\Russian Journal of Applied Chemistry\\2004, v. 77, N. 9 p.1523.pdf |
G 65 Gorbunova, T. I. Chemical methods of transformation of polychlorobiphenyls [Electronic resource] / T. I. Gorbunova, V. I. Saloutin, O. N. Chupakhin // Russian Chemical Reviews. - 2010. - Vol. 89, № 6. - P511-530 : рис. Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Modern methods for detoxication of production wastes containing polychlorobiphenyls are considered. The reactivity of some congeners (individual components) and technical mixtures of polychlorobiphenyls in various types of reactions is analyzed. The possibilities of application of polychlorobiphenyl derivatives are estimated |
R 30 Reactivity features of polychlorobiphenyl congeners in the nucleophilic substitution reactions / T. I. Gorbunova, M. G. Pervova, V. I. Saloutin, O. N. Chupakhin // Russian Journal of General Chemistry. - 2012. - Vol. 82, № 1. - С. 138-143. - Bibliogr. : p. 143 (18 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): POLYCHLORINATED-BIPHENYLS -- IRON -- DECHLORINATION -- NANOPARTICLES -- PCBS Аннотация: Groups of congeners and individual congeners of polychlorobiphenyls contributing to the composition of the technical mixture "Sovol" (PCB 60, PCB 64, PCB 70, PCB 74, PCB 97, PCB 101, PCB 105, PCB 110, PCB 118, PCB 138, PCB 149, PCB 156, and PCB 163) were synthesized by the reaction of aryl-aryl coupling. The interaction of the congeners with sodium methoxide was performed and their complete conversion was proved. By means of gas chromatography-mass spectrometry the PCBs methoxy derivatives were identified. The data on the reactivity of the individual polychlorobiphenyl congeners were precised |
A 10 A new application of derivatives of polychlorobiphenyls and polyethylene glycols / T. I. Gorbunova, M. G. Pervova, E. B. Trushina, S. V. Pavlysko, A. Ya. Zapevalov, V. I. Saloutin // Russian Journal of Applied Chemistry. - 2012. - Vol.85, №10. - С. 1622-1626 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): POLYCHLOROBIPHENYLS -- POLYETHYLENE GLYCOLS -- SYNTHESIS Аннотация: The reaction of congeners of Sovol technical mixture of polychlorobiphenyls with polyethylene glycols was studied. Mixtures of hydroxy and mono(polyethylene glycol)oxy derivatives were obtained. The mixtures synthesized, which are of low hazard, were used as additives to industrial oil to improve its tribological char \\\\Expert2\\nbo\\Russian Journal of Applied Chemistry\\2012, v. 85, N 10, p.1662.pdf |
R 30 Reaction of polychlorinated biphenyls and benzenes with neopentyl glycol / M. G. Pervova, T. I. Gorbunova, M. A. Samorukova, V. I. Saloutin, O. N. Chupakhin // Russian Journal of General Chemistry. - 2012. - Vol.82, №3. - С. 428-435 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): 1,2,4-TRICHLOROBENZENE -- BIPHENYLS -- SOVOL Аннотация: The reactions of a mixture of 1,2,3- and 1,2,4-trichlorobenzene and polychlorinated biphenyls congeners of the industrial mixture Sovol with neopentyl glycol in the presence of alkali in DMSO medium was studied. In the conditions of nucleophilic substitution the aromatic compounds are converted completely. Using the method of gas chromatography with flame ionization and mass spectrometric detectors the structure of all synthesized compounds was studied and the following series of increasing reactivity of the polychlorinated biphenyls congeners was revealed: tetra- < penta- < hexachlorobiphenyls. The process can serve as a preliminary step of the preparation of industrial waste for the subsequent biological degradation \\\\Expert2\\nbo\\Russian Journal of General Chemistry\\2012, V. 82, N3, p. 428-435.pdf |
T 44 Thermodynamic modeling of the reaction of polychlorinated biphenyls with sodium methoxide [Electronic resource] / T. V. Kulikova, A. V. Maiorova, K. Yu. Shunyaev, T. I. Gorbunova, V. I. Saloutin, O. N. Chupakhin // Russian Journal of General Chemistry. - 2013. - Vol.83, №5. - С. 893-900. - Библиогр.: с. 900 (17 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): THERMODYNAMIC MODELING -- SODIUM METHOXIDE -- POLYCHLORINATED BIPHENYLS Аннотация: Thermochemical parameters, like standard enthalpy of formation (ΔH 298 0), enthalpy increment from 0 to 298 K (H 298 0 - H 0 0), standard heat capacity (C p298 0) and its temperature dependence [Cp(T)], and entropy (S 298 0), were calculated for the gaseous methoxy derivatives formed from polychlotinated biphenyl (PCB) congeners. Thermodynamic modeling and the HSC software were used to evaluate the reactivity of PCB congeners toward sodium methoxide in DMSO, and the calculation results were compared with experimental data |
R 30 Reactivity of polychlorinated biphenyls in nucleophilic and electrophilic substitutions [Electronic resource] / T. I. Gorbunova, J. O. Subbotina, V. I. Saloutin, O. N. Chupakhin // Journal of Hazardous Materials. - 2014. - Vol.278. - С. 491-499. - Bibliogr. : p. 498-499 (58 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): CONGENERS -- DESCRIPTORS -- ELECTROPHILIC SUBSTITUTION Аннотация: To explain the chemical reactivity of polychlorinated biphenyls in nucleophilic (SN) and electrophilic (SE) substitutions, quantum chemical calculations were carried out at the B3LYP/6-31G(d) level of the Density Functional Theory in gas phase. Carbon atomic charges in biphenyl structure were calculated by the Atoms-in-Molecules method. Chemical hardness and global electrophilicity index parameters were determined for congeners. A comparison of calculated descriptors and experimental data for congener reactivity in the SN and SE reactions was made. It is shown that interactions in the SN mechanism are reactions of the hard acid-hard base type, these are the most effective in case of highly chlorinated substrates. To explain the congener reactivity in the SE reactions, correct descriptors were not established. The obtained results can be used to carry out chemical transformations of the polychlorinated biphenyls in order to prepare them for microbiological destruction or preservation |
B 12 Bacterial degradation of a mixture obtained through the chemical modification of polychlorinated biphenyls by polyethylene glycols / D. O. Egorova, T. I. Gorbunova, M. G. Pervova, V. A. Demakov // Applied Biochemistry and Microbiology. - 2014. - Vol. 50, № 7. - С. 722-729. - Bibliogr. : p. 729 (29 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): BACTERIAL DEGRADATION -- CHEMICAL MODIFICATION -- POLYETHYLENE GLYCOLS Аннотация: Polychlorinated biphenyls (PCBs), also known by the trade name Sovol, are toxic industrial wastes. They have been subjected to chemical treatment by polyethylene glycols (PEGs) and potassium hydroxide. As a result of the interaction of the Sovol with various molecular mass PEGs (MMPEG-4 ∼ 200, MMPEG-22 ∼ 1000), water-soluble mixtures M1 and M2 containing mono(polyethylene glycol)oxy-derivatives (PCB-PEG-4 and PCB-PEG-22), polychlorobiphenylols, and unreacted PCB congeners (PCB 44, PCB 47, PCB 49, PCB 52, and PCB 66) were obtained. It was shown for the first time that mixtures M1 and M2 are susceptible to bacterial degradation without their fractionation. According to the gas-liquid chromatography with flame-ionization and mass-spectrometric detection, the Rhodococcus wratislaviensis KT112-7 strain degraded all of the chemical compounds occurring in the mixtures. In a 5-day experiment, it was found that the KT112-7 strain decomposes mono(polyethylene glycol)oxy-derivatives completely (by 100%) and polychlorobiphenylols and PCB congeners by 90–95% in the M1 and M2 mixtures. The culture medium did not contain transformation products, whereas free chlorine ions were accumulated (72–94% of the maximum possible amount). Thus, the use of the chemical modification and consecutive bacterial degradation provided an effective destruction of technical PCB mixtures with a high content of highly chlorinated congeners \\\\expert2\\nbo\\Applied Biochemistry and Microbiology\\2014, v.50, N 7, p.722-729.pdf |
I-70 Investigation of polychlorinated biphenyls congeners in the Trikhlorbifenil technical mixture [Electronic resource] / M. G. Pervova, K. A. Plotnikova, T. I. Gorbunova, V. I. Saloutin, O. N. Chupakhin // Russian Journal of General Chemistry. - 2015. - Vol. 85, № 8. - С. 1929-1933. - Bibliogr. : p. 1933 (15 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): POLYCHLORINATED BIPHENYLS -- GAS CHROMATOGRAPHY -- CONGENERS Аннотация: Polychlorinated biphenyls contained in the Trikhlorbifenil technical mixture have been studied and identified. Content of the congeners in the mixture has been determined using the internal reference method. The results have been applied to determine qualitative and quantitative composition of polychlorinated biphenyls in contaminated soil. \\\\expert2\\nbo\\Russian Journal of General Chemistry\\2015, V. 85, N 8, p. 1929-1933.pdf |
Features of sulfonation of polychlorinated biphenyl congeners / K. A. Plotnikova, T. I. Gorbunova, M. G. Pervova, V. I. Saloutin, O. N. Chupakhin // Russian Journal of General Chemistry. - 2018. - Vol. 88, № 2. - P257-261 Рубрики: ХИМИЧЕСКИЕ НАУКИ |