Polyanionic Hexagons: X6n– (X = Si, Ge)
AbstractThe paper reviews the polyanionic hexagons of silicon and germanium, focusing on aromaticity. The chair-like structures of hexasila- and hexagermabenzene are similar to a nonaromatic cyclohexane (CH2)6 and dissimilar to aromatic D6h-symmetric benzene (CH)6, although silicon and germanium are in the same group of the periodic table as carbon. Recently, six-membered silicon and germanium rings with extra electrons instead of conventional substituents, such as alkyl, aryl, etc., were calculated by us to have D6h symmetry and to be aromatic. We summarize here our main findings and the background needed to reach them, and propose a synthetically accessible molecule.
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Takahashi, M. Polyanionic Hexagons: X6n– (X = Si, Ge). Symmetry 2010, 2, 1745-1762.
Takahashi M. Polyanionic Hexagons: X6n– (X = Si, Ge). Symmetry. 2010; 2(4):1745-1762.Chicago/Turabian Style
Takahashi, Masae. 2010. "Polyanionic Hexagons: X6n– (X = Si, Ge)." Symmetry 2, no. 4: 1745-1762.