D. Braga, G. Cojazzi, L. Maini
Oct 10, 2001
Citations
1
Influential Citations
20
Citations
Journal
New Journal of Chemistry
Abstract
Anhydrous rhodizonic acid H2C6O6 is obtained by (fully reversible) thermal dehydration of solid 2,3,5,5,6,6-hexahydroxycyclohex-2-ene-1,4-dione, H6C6O8, commonly known as rhodizonic acid dihydrate. Treatment of H6C6O8 with RbOH yields crystals of Rb2C6O6; the oxocarbon dianion C6O62− is shown to possess a flat, benzene-type structure, with C–C bonds shorter than expected for a (non-aromatic) ketonic-type structure.