Keywords: Heptacene molecule spacefill.png Space-filling model of the heptacene molecule a polycyclic aromatic hydrocarbon Color code 505050 Carbon C black<br> F0F0F0 Hydrogen H white<br> 2011-08-30 own DS Visualizer Jynto talk Ball-and-stick version cc-zero Images by Jynto Space-filling models Heptacene |