Oxidation of a stable 1,3-diborata-2,4-diphosphonio-cyclobutane-1,3-diyl

Issue title: In Honor of Alan H. Cowley

Article type: Research Article

Authors: Fuks, Gad^; | Donnadieu, Bruno | Sacquet, Alix | Maron, Laurent | Bourissou, Didier | Bertrand, Guy

Affiliations: UCR-CNRS Joint Research Chemistry Laboratory (UMI 2957), Department of Chemistry, University of California Riverside, Riverside, CA 92521-0403, USA | Université de Toulouse, UPS, Laboratoire Hétérochimie Fondamentale Appliquée, UMR 5069 CNRS, F-31062 Toulouse, France | Laboratoire de Chimie de Coordination, UPR 8241 CNRS, F-31077 Toulouse, France | Université de Toulouse, INSA, UPS, LPCNO, UMR 5215 CNRS, F-31077 Toulouse, France

Note: [] Corresponding authors. E-mail: [email protected], [email protected]

Abstract: According to cyclic voltammetry, the stable 1,3-diborata-2,4-diphosphonio-cyclobutane-1,3-diyl 1 can be readily oxidized. The oxidation is irreversible, preventing the characterization of the corresponding radical cation, whose structure has been investigated by DFT calculations. Diradicaloid 1 is oxidized by silver salts AgX (X=Cl, OTf), to give silver mirror along with the bis(chloride) and bis(trifluoromethane sulfonate) adducts 2 and 3.

Keywords: 1,3-diradicals, boron, electrochemistry, DFT

DOI: 10.3233/MGC-2010-0009

Journal: Main Group Chemistry, vol. 9, no. 1-2, pp. 101-109, 2010