Structural evidence for antiaromaticity in free boroles

Holger Braunschweig; Israel Fernández; Gernot Frenking; Thomas Kupfer

doi:10.1002/anie.200704771

Structural evidence for antiaromaticity in free boroles

Holger Braunschweig, Israel Fernández, Gernot Frenking, Thomas Kupfer

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摘要

(Chemical Equation Presented) Pentaphenylborole and a ferrocenylborole were synthesized and structurally characterized. Both experimental and theoretical data reveal that rather weak intermolecular interactions are able to significantly alter the bond lengths in the borole ring of pentaphenylborole (see picture). Moreover, the high Lewis acidity of boroles is demonstrated by a significant Fe⋯B interaction in the ferrocenylborole in the solid state.

源语言	英语
页（从-至）	1951-1954
页数	4
期刊	Angewandte Chemie - International Edition
卷	47
期	10
DOI	https://doi.org/10.1002/anie.200704771
出版状态	已出版 - 22 2月 2008
已对外发布	是

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AU - Fernández, Israel

AU - Frenking, Gernot

AU - Kupfer, Thomas

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N2 - (Chemical Equation Presented) Pentaphenylborole and a ferrocenylborole were synthesized and structurally characterized. Both experimental and theoretical data reveal that rather weak intermolecular interactions are able to significantly alter the bond lengths in the borole ring of pentaphenylborole (see picture). Moreover, the high Lewis acidity of boroles is demonstrated by a significant Fe⋯B interaction in the ferrocenylborole in the solid state.

AB - (Chemical Equation Presented) Pentaphenylborole and a ferrocenylborole were synthesized and structurally characterized. Both experimental and theoretical data reveal that rather weak intermolecular interactions are able to significantly alter the bond lengths in the borole ring of pentaphenylborole (see picture). Moreover, the high Lewis acidity of boroles is demonstrated by a significant Fe⋯B interaction in the ferrocenylborole in the solid state.

KW - Antiaromaticity

KW - Boroles

KW - Boron

KW - Density functional calculations

KW - Intermolecular interactions

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Structural evidence for antiaromaticity in free boroles

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