The isolation of a novel form of molecular carbon C60 was reported in 1990. The substance has the shape of a soccer ball of carbon atoms and possesses the nickname "buckyball" (you don't want to know the IUPAC name). Hydrogenation produces a hydrocarbon with the molecular formula C60H36. What is the degree of un-saturation in C60? In C60H36 does the hydrogenation| result place limits on the numbers of π bonds and rings in "buckyball"? (More on CW) is found in Chemical Highlight 15-1.)