Keywords: Diethyl-ether-oxonium-BArF-salt-from-xtal-2000-Mercury-3D-balls.png Ball-and-stick model of the salt H OEt<sub>2</sub> <sub>2</sub><sup>+</sup>B C<sub>6</sub>F<sub>5</sub> <sub>4</sub><sup> </sup> i e C<sub>32</sub>H<sub>21</sub>BF<sub>20</sub>O<sub>2</sub> as found in the crystal structure The salt is similar to Brookhart's Acid as both contain the protonated diethyl ether cluster Et<sub>2</sub>O �H<sup>+</sup>···OEt<sub>2</sub> Colour code 848484 Carbon C grey FFFFFF Hydrogen H white FFC0C0 Boron B pink D4F03F Fluorine F yellow-green F00000 Oxygen O red Structure determined by X-ray crystallography reported in http //dx doi org/10 1021/om990612w Organometallics 2000 19 1442 �1444 XEKFUO Model manipulated and image generated in http //www ccdc cam ac uk/products/mercury/ CCDC Mercury 3 0 Own 2012-11-15 Ben Mills Benjah-bmm27 Images by Ben Mills Ball-and-stick models Diethyl ether Oxonium compounds Tetrakis pentafluorophenyl borates |