Keywords: Oxatriquinacene cation 3D ball.png Ball-and-stick model of the oxatriquinacene cation an unusually stable oxonium ion It has a positive charge of 1 Colour code 505050 Carbon C black<br> F0F0F0 Hydrogen H white<br> F51E1E Oxygen O red<br> 2011-07-03 own DS Visualizer Jynto talk Space-filling version cc-zero Images by Jynto Oxonium ions Oxygen heterocycles |