Absolute rate constants for the reactions of tri-n-butylgermyl and tri-n-butylstannyl radicals with carbonyl compounds, other unsaturated molecules, and organic halides

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DOIResolve DOI: http://doi.org/10.1021/ja00314a016
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TypeArticle
Journal titleJournal of the American Chemical Society
ISSN0002-7863
Volume106
Issue2
Pages343348; # of pages: 6
AbstractThe absolute rate constants for the reactions of n-Bu 3Ge· and n-Bu 3Sn· radicals with a wide variety of organic compounds have been measured in solution at ca. 300 K by using laser flash photolysis techniques. For most of the substrates examined the n-Bu 3Ge· and n-Bu 3Sn· radicals were found to have essentially equal reactivity, e.g., the measured rate constants were 7.4 × 10 8 and 1.4 × 10 9 M -1 s -1, respectively, for duroquinone; 9.6 × 10 7 and 1.3 × 10 8 M -1 s -1, respectively, for benzil; 8.6 × 10 7 and 9.9 × 10 7 M -1 s -1, respectively, for styrene; 4.6 × 10 7 and 6.8 × 10 -1 M -1 s -1, respectively, for 1,4-pentadiene; and 8.6 × 10 7 and 1.7 × 10 8 M -1 s -1, respectively, for tert-butyl bromide. In all their reactions, these two radicals are less reactive than triethylsilyl radicals. From literature data we are able to estimate that the inversion of triorganogermyl radicals is somewhat slower than that for triorganosilyl radicals. Published 1984 by the American Chemical Society.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC)
Peer reviewedYes
NPARC number21276656
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Record identifier1e316bb1-15ab-4c15-81b6-c5717b9f977f
Record created2015-10-13
Record modified2016-05-09
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