Putting atoms and molecules into chemically opened fullerenes.
We studied Ar, Kr, CO, and N(2) going into and out of a chemically opened fullerene, 1. We measured the equilibrium constant, K(eq), for the formation of X@1. K(eq) is particularly large for Ar, probably due to the large van der Waals attraction between the Ar atom and the fullerene cage. We measured rate constants and activation energies for the unimolecular reaction X@1-->X + 1 (X = Ar, CO, N(2)). The reactions show an unusually small pre-exponential factor, probably due to the loose binding of X inside the cage.
Stanisky
Christopher M
CM
Dept. of Chemistry, Yale University, Box 208107, New Haven, Connecticut 06520-8107, USA.
Cross
R James
RJ
Saunders
Martin
M
D001128:Argon / Q000737:chemistry*; D002248:Carbon Monoxide / Q000737:chemistry*; D037741:Fullerenes / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D007726:Krypton / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry*
D037741:Fullerenes; D007726:Krypton; D001128:Argon; D002248:Carbon Monoxide; D009584:Nitrogen