SSS 2011-08-04

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The carbon molecule¹ known as a buckyball, a member of the fullerene family, can act as a cage for a variety of other chemicals. And now researchers have used one to trap a single molecule of water. The work appears in the journal Science. Placing a molecule that's essential to life within a spherically² symmetrical one could let researchers learn more about each.

 

Water molecules³ stick together, because they carry a slight charge on each end. As the positive pole of one H2O attracts the negative pole of another, the molecules cling tightly together. You can't separate a single water molecule from its fellows with a tiny pair of tweezers⁴, so isolating⁵ it in a carbon cage may reveal new secrets about the intrinsic nature of a lone⁶ H2O. 

 

What about the cage itself? Researchers already know that buckyballs refuse to dissolve in water, sometimes even floating like miniature beach balls. But what happens when the water is within? Putting polar molecules inside buckyballs may influence the chemical behavior of their outsides, and create new molecules with unique properties. Not to mention making our understanding even…fuller.

 

Thanks for the minute. For Scientific American’s 60-Second Science, I’m Sophie Bushwick.

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