INVESTIGATION OF ORGANOLITHIUM DIMERIZATION ON IRRADIATED CDS POWDER

Clark T (1995)


Publication Status: Published

Publication Type: Journal article

Publication year: 1995

Journal

Publisher: American Chemical Society

Book Volume: 14

Pages Range: 2570-2574

Journal Issue: 5

DOI: 10.1021/om00005a064

Abstract

Irradiation of CdS powder suspended in ethereal solutions of organolithium compounds, RLi, yields elemental Cd and the photooxidation products R-R. The mechanism is shown to be a radical one, the products R-R at least partly resulting from intraaggregate dimerization of radicals R(.) if the parent RLi is aggregated. Free solution-phase radicals have not been detected. The configuration of a benzyl anion adsorbate has been investigated using AM1 semiempirical molecular orbital calculations on a ZnS model surface. These suggest that eta(1)- and eta(7)-bound species compete with each other. A comparison of the reactivity of PhCH(2)Li and two alkyl-substituted, sterically hindered derivatives shows that the substituted benzylic species, which are eta(1)-bound, react faster than PhCH(2)Li. We therefore propose that PhCH(2)Li prefers a eta(7) configuration on the active CdS surface.

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How to cite

APA:

Clark, T. (1995). INVESTIGATION OF ORGANOLITHIUM DIMERIZATION ON IRRADIATED CDS POWDER. Organometallics, 14(5), 2570-2574. https://dx.doi.org/10.1021/om00005a064

MLA:

Clark, Timothy. "INVESTIGATION OF ORGANOLITHIUM DIMERIZATION ON IRRADIATED CDS POWDER." Organometallics 14.5 (1995): 2570-2574.

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