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Synthesis, Structure, and Application of [PhNMe2H][B{C6F4C(C6F5)2F}4]

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journal contribution
posted on 18.04.2001, 00:00 by George Rodriguez, Patrick Brant
The new perfluorinated tetraaryl borate [B{C6F4C(C6F5)2F}4]- (3) has been prepared and characterized. The X-ray structural analysis of [C6H5N(H)(CH3)2][3] confirms the tetrahedral geometry about the boron. The performance of 3 as a weakly coordinating anion in ethylene polymerization was evaluated and compared with that of B(C6F5)4- and B(3,5-(CF3)2C6H3)4-. The stability of 3 throughout polymerization was evaluated by analyzing anion residues in a polymer sample using mass spectroscopy.