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. 2016 Nov 14;55(47):14798-14801.
doi: 10.1002/anie.201608615. Epub 2016 Oct 26.

Bi-P Bond Homolysis as a Route to Reduced Bismuth Compounds and Reversible Activation of P4

Ryan J Schwamm  1 , Matthias Lein  1 , Martyn P Coles  1 , Christopher M Fitchett  2
Affiliations

Bi-P Bond Homolysis as a Route to Reduced Bismuth Compounds and Reversible Activation of P4

Ryan J Schwamm et al. Angew Chem Int Ed Engl. .

Abstract

Bismuth diphenylphosphanides Bi(NONR )(PPh2 ) (NONR =[O(SiMe2 NR)2 ], R=tBu, 2,6-iPr2 C6 H3 , Aryl) undergo facile decomposition via single-electron processes to form reduced Bi and P species. The corresponding derivatives Bi(NONR )(PCy2 ) are stable. Reaction of the isolated BiII radical . Bi(NONAr ) with white phosphorus (P4 ) proceeds with the reversible and selective activation of a single P-P bond to afford the bimetallic μ,η1:1 -bicyclo[1.1.0]tetraphosphabutane compound.

Keywords: P4 activation; bismuth; bond homolysis; main-group radicals; phosphanides.

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