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A Theoretical Study of the Aromaticity in Neutral and Anionic Borole Compounds
Jiménez Halla, José Óscar Carlos; Matito i Gras, Eduard; Solà i Puig, Miquel; Braunschweig, Holger; Hörl, Christian; Krummenacher, Ivo; Wahler, Johannes
In this contribution, we have evaluated the (anti)aromatic character of thirty-four different borole compounds in their neutral and reduced states based on two aromaticity indices, namely nucleus-independent chemical shift (NICS) and multicenter indices (MCI), calculated at the PBE0/6-31+G(d,p) level of theory. Both indices corroborate the notion that neutral borole compounds are antiaromatic and become increasingly aromatic upon addition of electrons. Effects of the ring substituents on the degree of (anti) aromaticity are discussed together with differences in the two theoretical methods, which are on the one hand based on magnetic (NICS) and on the other hand based on electronic criteria (MCI)
Compostos heterocíclics
Heterocyclic compounds
Aromaticitat (Química)
Aromaticity (Chemistry)
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Royal Society of Chemistry (RSC)
         

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