Keywords: Tschitschibabin biradical ball.png Ball-and-stick model of the Tschitschibabin biradical an example of a non-Kekulé molecule C H 2011-11-26 own DS Visualizer Jynto more from this user Space-filling version cc-zero Images by Jynto Radicals Triphenylmethanes Aromatic hydrocarbons Biphenyls |