Ethenone, the simplest ketene, has different experimental lengths for each of the double bonds; the C=O bond is 1,160Å and the C=C bond is 1,314Å. The angle between the two H atoms is 121.5°, similar to the theoretically ideal angle formed in alkenes between sp2 carbon atom and H substituents.
ethenone the simplest ketene has different experimental lengths for each of the double bonds; the c=o bond is 1160å and the c=c bond is 1314å the angle between the two h atoms is 1215° similar to the theoretically ideal angle formed in alkenes between sp2 carbon atom and h substituents