Formation and reactivity of carboxyphenyl radicals in aqueous solution
Само за регистроване кориснике
1998
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Carboxyphenyl radicals were generated in aqueous solutions by reacting the solvated electron with ortho-, meta-and para-chlorobenzoate. These radicals were found to add to chlorobenzoates and abstract hydrogen atoms from a H-atom donor. It was concluded that the rate constants for the addition of carboxyphenyl radicals to chlorobenzoate depend on steric hindrance, since ortho;carboxyphenyl radical adds to 2-chlorobenzoate [k(add) = (1.0+/-0.2) x 10(6) dm(3) mol(-1) s(-1)] an order of magnitude slower than para-carboxyphenyl radical to 4-chlorobenzoate [k(add) = (1.0+/-0.2) x 10(7) dm(3) mol(-1) s(-1)]. The products of these addition reactions were detected by GC-MS. All three carboxyphenyl radical isomers abstract a H-atom from 4-methoxybenzen thiol at the same rate [k(H-aps)similar to 1 x 10(9) dm(3) mol(-1) s(-1)], i.e. the position of the carboxylate group seems not to influence the rate of the II-abstraction reaction. (C) 1998 Elsevier Science Ltd. All rights reserved.
Извор:
Radiation Physics and Chemistry, 1998, 51, 3, 293-303
DOI: 10.1016/S0969-806X(97)00274-0
ISSN: 0969-806X
WoS: 000073489900009
Scopus: 2-s2.0-0032029428
Колекције
Институција/група
VinčaTY - JOUR AU - Janković, Ivana A. AU - Josimović, Ljubica R. AU - Jovanović, Slobodan V. PY - 1998 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2142 AB - Carboxyphenyl radicals were generated in aqueous solutions by reacting the solvated electron with ortho-, meta-and para-chlorobenzoate. These radicals were found to add to chlorobenzoates and abstract hydrogen atoms from a H-atom donor. It was concluded that the rate constants for the addition of carboxyphenyl radicals to chlorobenzoate depend on steric hindrance, since ortho;carboxyphenyl radical adds to 2-chlorobenzoate [k(add) = (1.0+/-0.2) x 10(6) dm(3) mol(-1) s(-1)] an order of magnitude slower than para-carboxyphenyl radical to 4-chlorobenzoate [k(add) = (1.0+/-0.2) x 10(7) dm(3) mol(-1) s(-1)]. The products of these addition reactions were detected by GC-MS. All three carboxyphenyl radical isomers abstract a H-atom from 4-methoxybenzen thiol at the same rate [k(H-aps)similar to 1 x 10(9) dm(3) mol(-1) s(-1)], i.e. the position of the carboxylate group seems not to influence the rate of the II-abstraction reaction. (C) 1998 Elsevier Science Ltd. All rights reserved. T2 - Radiation Physics and Chemistry T1 - Formation and reactivity of carboxyphenyl radicals in aqueous solution VL - 51 IS - 3 SP - 293 EP - 303 DO - 10.1016/S0969-806X(97)00274-0 ER -
@article{ author = "Janković, Ivana A. and Josimović, Ljubica R. and Jovanović, Slobodan V.", year = "1998", abstract = "Carboxyphenyl radicals were generated in aqueous solutions by reacting the solvated electron with ortho-, meta-and para-chlorobenzoate. These radicals were found to add to chlorobenzoates and abstract hydrogen atoms from a H-atom donor. It was concluded that the rate constants for the addition of carboxyphenyl radicals to chlorobenzoate depend on steric hindrance, since ortho;carboxyphenyl radical adds to 2-chlorobenzoate [k(add) = (1.0+/-0.2) x 10(6) dm(3) mol(-1) s(-1)] an order of magnitude slower than para-carboxyphenyl radical to 4-chlorobenzoate [k(add) = (1.0+/-0.2) x 10(7) dm(3) mol(-1) s(-1)]. The products of these addition reactions were detected by GC-MS. All three carboxyphenyl radical isomers abstract a H-atom from 4-methoxybenzen thiol at the same rate [k(H-aps)similar to 1 x 10(9) dm(3) mol(-1) s(-1)], i.e. the position of the carboxylate group seems not to influence the rate of the II-abstraction reaction. (C) 1998 Elsevier Science Ltd. All rights reserved.", journal = "Radiation Physics and Chemistry", title = "Formation and reactivity of carboxyphenyl radicals in aqueous solution", volume = "51", number = "3", pages = "293-303", doi = "10.1016/S0969-806X(97)00274-0" }
Janković, I. A., Josimović, L. R.,& Jovanović, S. V.. (1998). Formation and reactivity of carboxyphenyl radicals in aqueous solution. in Radiation Physics and Chemistry, 51(3), 293-303. https://doi.org/10.1016/S0969-806X(97)00274-0
Janković IA, Josimović LR, Jovanović SV. Formation and reactivity of carboxyphenyl radicals in aqueous solution. in Radiation Physics and Chemistry. 1998;51(3):293-303. doi:10.1016/S0969-806X(97)00274-0 .
Janković, Ivana A., Josimović, Ljubica R., Jovanović, Slobodan V., "Formation and reactivity of carboxyphenyl radicals in aqueous solution" in Radiation Physics and Chemistry, 51, no. 3 (1998):293-303, https://doi.org/10.1016/S0969-806X(97)00274-0 . .