Antiaromatic spacer-bridged bisfluorenyl dications generated by superacid induced ionization

BJ Dahl, NS Mills

Index: Dahl, Bart J.; Mills, Nancy S. Journal of the American Chemical Society, 2008 , vol. 130, # 31 p. 10179 - 10186

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Citation Number: 22

Abstract

Derivatives of the dication of tetrabenzo [5.5] fulvalene were prepared with phenyl and ethynyl spacers through ionization of the appropriate bis-methylethers. The antiaromaticity shown by the parent dication was demonstrated for these dications with spacers, although it was attenuated by the presence of the spacer. It was substantially greater than that of fluorenyl monocations with similar substituents. Antiaromaticity was evaluated through ...