Keywords: 1,2-Butadiene-3D-balls.png Ball-and-stick model of the 1 2-butadiene molecule Derived from File Allene-CRC-IR-3D-balls png and File Acetic-acid-CRC-GED-3D-balls-A png 2010-07-24 Jynto and Ben Mills Allenes Images by Jynto Ball-and-stick models |