From an electron-rich diborane to an electron-poor diborene

Böhnke, Julian, Braunschweig, Holger, Dellermann, Theresa, Ewing, William C., Kramer, Thomas, Krummenacher, Ivo and Vargas, Alfredo (2015) From an electron-rich diborane to an electron-poor diborene. Angewandte Chemie International Edition, 54 (15). pp. 4469-4473. ISSN 1433-7851

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Abstract

The reaction of the bisboracumulene CAAC2B2 (CAAC = 1-(2,6-diisopropylphenyl)-3,3,5,5-tetramethylpyrrolidin-2-ylidene) with a slight excess of isocyanide resulted in the complexation of the isocyanide at boron. Though this compound might be formally drawn with a lone pair on boron, these electrons are highly delocalized throughout a conjugated π- network consisting of the π-acidic CAAC and isocyanide ligands. Heating this compound to 110 °C liberated the organic periphery of both isocyanide ligands, yielding the first example of a dicyanodiborene. Cyclic voltammetry conducted on this diborene indicated the presence of reduction waves, making this compound unique among known diborenes, which are otherwise known as highly reducing.

Item Type: Article
Schools and Departments: School of Life Sciences > Chemistry
Subjects: Q Science > QD Chemistry
Depositing User: Alfredo Vargas
Date Deposited: 19 Feb 2015 10:24
Last Modified: 27 May 2015 13:08
URI: http://sro.sussex.ac.uk/id/eprint/52157
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