Reactions of aliphatic free radicals with copper cations in aqueous solution. Part 2. - Reactions with cupric ions: A pulse radiolysis study

Mira Freiberg; Dan Meyerstein

doi:10.1039/F19807601825

Reactions of aliphatic free radicals with copper cations in aqueous solution. Part 2. - Reactions with cupric ions: A pulse radiolysis study

Mira Freiberg
, Dan Meyerstein

Research output: Contribution to journal › Article › peer-review

90 Scopus citations

Abstract

Reactions of Cu_aq²⁺ with the aliphatic-free radicals ·CH₂CO₂^-, CH₃CHCHCO₂^-, O₂^-CCHCH(OH)CO₂^-, ·CCl₃, CH₂CH₂OH and ·CH₂C(CH₃)₂OH in aqueous solutions were studied. In these reactions the formation of unstable intermediates absorbing in the u.v. range was observed. This absorption is attributed to compounds with copper-carbon σ bonds. The kinetics of formation and decomposition of these intermediates are reported and discussed. No intermediates were observed when Cu_aq²⁺ reacts with ·CR₁R₂OH-free radicals. Cu_aq²⁺ is one of the final products in all systems studied.

Original language	English
Pages (from-to)	1825-1837
Number of pages	13
Journal	Journal of the Chemical Society, Faraday Transactions I
Volume	76
DOIs	https://doi.org/10.1039/F19807601825
State	Published - 1980
Externally published	Yes

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title = "Reactions of aliphatic free radicals with copper cations in aqueous solution. Part 2. - Reactions with cupric ions: A pulse radiolysis study",

abstract = "Reactions of Cuaq2+ with the aliphatic-free radicals ·CH2CO2-, CH3CHCHCO2-, O2-CCHCH(OH)CO2-, ·CCl3, CH2CH2OH and ·CH2C(CH3)2OH in aqueous solutions were studied. In these reactions the formation of unstable intermediates absorbing in the u.v. range was observed. This absorption is attributed to compounds with copper-carbon σ bonds. The kinetics of formation and decomposition of these intermediates are reported and discussed. No intermediates were observed when Cuaq2+ reacts with ·CR1R2OH-free radicals. Cuaq2+ is one of the final products in all systems studied.",

author = "Mira Freiberg and Dan Meyerstein",

note = "Funding Information: Jochen Lilie for help with the conductometric studies. We thankMr. J. Ogdan for maintaining and operating the electronic equipment. This studywas supported in part by the United States-Israel Binational Science Foundation(B.S.F.), Jerusalem, Israel and by the Israel Commission for Basic Research.(a) J. K. Kochi, in Free Radical, ed. J. K. Kochi (Wiley, N.Y., 1973), vol. I, chap. 11 ; (b)C . Walling, Accounts Chem. Res., 1974, 8, 125.J. K. Kochi, Accounts Chem. Res., 1975, 7, 351.M. Freiberg and D. Meyerstein, J.C.S. Chem. Comm., 1977, 934.(a) H.Cohen and D. Meyerstein, J. Amer. Chem. SOC., 1972, 94, 6944 ; (6) G. V. Buxton andJ . C. Green, J.C.S. ",

year = "1980",

doi = "10.1039/F19807601825",

language = "אנגלית",

volume = "76",

pages = "1825--1837",

}

TY - JOUR

T1 - Reactions of aliphatic free radicals with copper cations in aqueous solution. Part 2. - Reactions with cupric ions

T2 - A pulse radiolysis study

AU - Freiberg, Mira

AU - Meyerstein, Dan

N1 - Funding Information: Jochen Lilie for help with the conductometric studies. We thankMr. J. Ogdan for maintaining and operating the electronic equipment. This studywas supported in part by the United States-Israel Binational Science Foundation(B.S.F.), Jerusalem, Israel and by the Israel Commission for Basic Research.(a) J. K. Kochi, in Free Radical, ed. J. K. Kochi (Wiley, N.Y., 1973), vol. I, chap. 11 ; (b)C . Walling, Accounts Chem. Res., 1974, 8, 125.J. K. Kochi, Accounts Chem. Res., 1975, 7, 351.M. Freiberg and D. Meyerstein, J.C.S. Chem. Comm., 1977, 934.(a) H.Cohen and D. Meyerstein, J. Amer. Chem. SOC., 1972, 94, 6944 ; (6) G. V. Buxton andJ . C. Green, J.C.S.

PY - 1980

Y1 - 1980

N2 - Reactions of Cuaq2+ with the aliphatic-free radicals ·CH2CO2-, CH3CHCHCO2-, O2-CCHCH(OH)CO2-, ·CCl3, CH2CH2OH and ·CH2C(CH3)2OH in aqueous solutions were studied. In these reactions the formation of unstable intermediates absorbing in the u.v. range was observed. This absorption is attributed to compounds with copper-carbon σ bonds. The kinetics of formation and decomposition of these intermediates are reported and discussed. No intermediates were observed when Cuaq2+ reacts with ·CR1R2OH-free radicals. Cuaq2+ is one of the final products in all systems studied.

AB - Reactions of Cuaq2+ with the aliphatic-free radicals ·CH2CO2-, CH3CHCHCO2-, O2-CCHCH(OH)CO2-, ·CCl3, CH2CH2OH and ·CH2C(CH3)2OH in aqueous solutions were studied. In these reactions the formation of unstable intermediates absorbing in the u.v. range was observed. This absorption is attributed to compounds with copper-carbon σ bonds. The kinetics of formation and decomposition of these intermediates are reported and discussed. No intermediates were observed when Cuaq2+ reacts with ·CR1R2OH-free radicals. Cuaq2+ is one of the final products in all systems studied.

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DO - 10.1039/F19807601825

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AN - SCOPUS:37049091940

SN - 0300-9599

VL - 76

SP - 1825

EP - 1837

JO - Journal of the Chemical Society, Faraday Transactions I

JF - Journal of the Chemical Society, Faraday Transactions I

ER -

Reactions of aliphatic free radicals with copper cations in aqueous solution. Part 2. - Reactions with cupric ions: A pulse radiolysis study

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