10.1021/om0009177.s002 Joep van den Broeke Joep van den Broeke Martin Lutz Martin Lutz Huub Kooijman Huub Kooijman Anthony L. Spek Anthony L. Spek Berth-Jan Deelman Berth-Jan Deelman Gerard van Koten Gerard van Koten Increasing the Lipophilic Character of Tetraphenylborate Anions through Silyl Substituents American Chemical Society 2001 Tetraphenylborate Anions CH 2 CH 2 C 6 F 13 SiMe Lipophilic Character complexes n tetraphenylborate anions para position Silyl Substituents Trimethylsilyl 2001-04-19 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/Increasing_the_Lipophilic_Character_of_Tetraphenylborate_Anions_through_Silyl_Substituents/3764745 Trimethylsilyl- and dimethyl(1<i>H</i>,1<i>H</i>,2<i>H</i>,2<i>H</i>-perfluorooctyl)silyl substituents have been introduced in the para position of tetraphenylborate anions, resulting in enhanced solubility of their complexes <i>n</i>-Bu<sub>4</sub>N[B(C<sub>6</sub>H<sub>4</sub>SiMe<sub>2</sub>R-4)<sub>4</sub>] (R = Me, CH<sub>2</sub>CH<sub>2</sub>C<sub>6</sub>F<sub>13</sub>) and [Rh(dppe)<sub>2</sub>][B(C<sub>6</sub>H<sub>4</sub>SiMe<sub>2</sub>R-4)<sub>4</sub>] (dppe = 1,2-bis(diphenylphosphino)ethane, R = Me, CH<sub>2</sub>CH<sub>2</sub>C<sub>6</sub>F<sub>13</sub>) in apolar organic solvents.