Free radical addition to olefins. Part 25.-Addition of perfluoro-t-butyl radicals to fluoro-olefins

John M. Tedder; John C. Walton; Luc L.T. Vertommen

doi:10.1039/F19797501040

Free radical addition to olefins. Part 25.-Addition of perfluoro-t-butyl radicals to fluoro-olefins

John M. Tedder^*, John C. Walton, Luc L.T. Vertommen

^*Corresponding author for this work

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

Abstract

Nonafluoro-2-iodo-2-methylpropane (perfluoro-t-butyl iodide) has been photolysed in the presence of ethylene and four fluoroethylenes. The reactions have been studied over a range of temperatures and relative Arrhenius parameters have been obtained for the addition of perfluoro-t-butyl radicals to each different site in the fluoro-olefins (E) (CF₃)₃C·+ E ^k2→ (CF₃)₃CĖ. olefin k ₂/k_2e(437 K) E₂-E_2e A ₂/A_2e (sitě) (per active site) /kcal mol ^-1 (per active site) ČH₂=CHF 0.48 0.98 1.48 ČH₂=CF₂ 0.33 1.11 1.20 ČHF=CH₂ 0.0025 4.31 0.37 ČHF=CF₂ 0.013 3.03 0.41 ČF ₂=CHF 0.00027 5.47 0.15 ČF₂=CF₂ 0.0008 4.06 0.09 (Subscript e refers to ethylene).

Original language	English
Pages (from-to)	1040-1049
Number of pages	10
Journal	Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
Volume	75
DOIs	https://doi.org/10.1039/F19797501040
Publication status	Published - 1 Dec 1979

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title = "Free radical addition to olefins. Part 25.-Addition of perfluoro-t-butyl radicals to fluoro-olefins",

abstract = "Nonafluoro-2-iodo-2-methylpropane (perfluoro-t-butyl iodide) has been photolysed in the presence of ethylene and four fluoroethylenes. The reactions have been studied over a range of temperatures and relative Arrhenius parameters have been obtained for the addition of perfluoro-t-butyl radicals to each different site in the fluoro-olefins (E) (CF3)3C·+ E k2→ (CF3)3CĖ. olefin k 2/k2e(437 K) E2-E2e A 2/A2e (sit{\v e}) (per active site) /kcal mol -1 (per active site) {\v C}H2=CHF 0.48 0.98 1.48 {\v C}H2=CF2 0.33 1.11 1.20 {\v C}HF=CH2 0.0025 4.31 0.37 {\v C}HF=CF2 0.013 3.03 0.41 {\v C}F 2=CHF 0.00027 5.47 0.15 {\v C}F2=CF2 0.0008 4.06 0.09 (Subscript e refers to ethylene).",

author = "Tedder, {John M.} and Walton, {John C.} and Vertommen, {Luc L.T.}",

year = "1979",

month = dec,

day = "1",

doi = "10.1039/F19797501040",

language = "English",

volume = "75",

pages = "1040--1049",

journal = "Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases",

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T1 - Free radical addition to olefins. Part 25.-Addition of perfluoro-t-butyl radicals to fluoro-olefins

AU - Tedder, John M.

AU - Walton, John C.

AU - Vertommen, Luc L.T.

PY - 1979/12/1

Y1 - 1979/12/1

N2 - Nonafluoro-2-iodo-2-methylpropane (perfluoro-t-butyl iodide) has been photolysed in the presence of ethylene and four fluoroethylenes. The reactions have been studied over a range of temperatures and relative Arrhenius parameters have been obtained for the addition of perfluoro-t-butyl radicals to each different site in the fluoro-olefins (E) (CF3)3C·+ E k2→ (CF3)3CĖ. olefin k 2/k2e(437 K) E2-E2e A 2/A2e (sitě) (per active site) /kcal mol -1 (per active site) ČH2=CHF 0.48 0.98 1.48 ČH2=CF2 0.33 1.11 1.20 ČHF=CH2 0.0025 4.31 0.37 ČHF=CF2 0.013 3.03 0.41 ČF 2=CHF 0.00027 5.47 0.15 ČF2=CF2 0.0008 4.06 0.09 (Subscript e refers to ethylene).

AB - Nonafluoro-2-iodo-2-methylpropane (perfluoro-t-butyl iodide) has been photolysed in the presence of ethylene and four fluoroethylenes. The reactions have been studied over a range of temperatures and relative Arrhenius parameters have been obtained for the addition of perfluoro-t-butyl radicals to each different site in the fluoro-olefins (E) (CF3)3C·+ E k2→ (CF3)3CĖ. olefin k 2/k2e(437 K) E2-E2e A 2/A2e (sitě) (per active site) /kcal mol -1 (per active site) ČH2=CHF 0.48 0.98 1.48 ČH2=CF2 0.33 1.11 1.20 ČHF=CH2 0.0025 4.31 0.37 ČHF=CF2 0.013 3.03 0.41 ČF 2=CHF 0.00027 5.47 0.15 ČF2=CF2 0.0008 4.06 0.09 (Subscript e refers to ethylene).

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U2 - 10.1039/F19797501040

DO - 10.1039/F19797501040

M3 - Article

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SN - 0300-9599

VL - 75

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EP - 1049

JO - Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases

JF - Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases

ER -

Free radical addition to olefins. Part 25.-Addition of perfluoro-t-butyl radicals to fluoro-olefins

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