π‐complexes of diborynes with main group atoms

Ewing, William C, Dellermann, Theresa, Wong, Y T Angel, Mattock, James D, Vargas, Alfredo, Bryce, David L, Dewhurst, Rian D and Braunschweig, Holger (2020) π‐complexes of diborynes with main group atoms. Chemistry An Asian Journal, 15 (10). pp. 1553-1557. ISSN 1861-4728

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Abstract

We present herein an in‐depth study of complexes in which a molecule containing a boron‐boron triple bond is bound to tellurate cations. The analysis allows the description of these salts as true π complexes between the B−B triple bond and the tellurium center. These complexes thus extend the well‐known Dewar‐Chatt‐Duncanson model of bonding to compounds made up solely of p block elements. Structural, spectroscopic and computational evidence is offered to argue that a set of recently reported heterocycles consisting of phenyltellurium cations complexed to diborynes bear all the hallmarks of π‐complexes in the π‐complex/metallacycle continuum envisioned by Joseph Chatt. Described as such, these compounds are unique in representing the extreme of a metal‐free continuum with conventional unsaturated three-membered rings (cyclopropenes, azirenes, borirenes) occupying the opposite end.

Item Type: Article
Schools and Departments: School of Life Sciences > Chemistry
Subjects: Q Science > QD Chemistry
Depositing User: Alfredo Vargas
Date Deposited: 15 Jun 2020 06:53
Last Modified: 15 Jun 2020 07:00
URI: http://sro.sussex.ac.uk/id/eprint/91864

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