Dibora[2]ferrocenophane: a carbene-stabilized diborene in a strained cis-configuration

Braunschweig, Holger, Krummenacher, Ivo, Lichtenberg, Crispin, Mattock, James D, Schäfer, Marius, Schmidt, Uwe, Schneider, Christoph, Steffenhagen, Thomas, Ullrich, Stefan and Vargas, Alfredo (2017) Dibora[2]ferrocenophane: a carbene-stabilized diborene in a strained cis-configuration. Angewandte Chemie International Edition, 56 (3). pp. 889-892. ISSN 1521-3773

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Abstract

Unsaturated bridges that link the two cyclopentadienyl ligands together in strained ansa metallocenes are rare and limited to carbon-carbon double bonds. The synthesis and isolation of a strained ferrocenophane containing an unsaturated two-boron bridge, isoelectronic with a C=C double bond, was achieved by reduction of a carbene-stabilized 1,1’-bis(dihaloboryl)ferrocene. A combination of spectroscopic and electrochemical measurements as well as density functional theory (DFT) calculations was used to assess the influence of the unprecedented strained cis configuration on the optical and electrochemical properties of the carbene-stabilized diborene unit. Initial reactivity studies show that the dibora[2]ferrocenophane is prone to boron-boron double bond cleavage reactions.

Item Type: Article
Schools and Departments: School of Life Sciences > Chemistry
Subjects: Q Science > QD Chemistry
Depositing User: Alfredo Vargas
Date Deposited: 22 Dec 2016 10:39
Last Modified: 07 Mar 2017 11:03
URI: http://sro.sussex.ac.uk/id/eprint/65631

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