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A series of monocyclic planar inorganic compounds have been optimized at the B3LYP/6-311+G ∗ level. GIAO-B3LYP nucleus-independent chemical shifts (NICS) profiles calculated in the perpendicular direction of each ring show that the series of analyzed compounds can be classified in three groups according to their aromatic, non-aromatic or antiaromatic character. Our results suggest exercising...
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