Magic and hot giant fullerenes formed inside ion irradiated weakly bound C-60 clusters

作者：Zettergren H^*; Johansson H A B; Schmidt H T; Jensen J; Hvelplund P; Tomita S; Wang Y; Martin F; Alcami M; Manil B; Maunoury L; Huber B A; Cederquist H

来源：Journal of Chemical Physics, 2010, 133(10): 104301.

DOI：10.1063/1.3479584

We find that the most stable fullerene isomers, C-70-C-94, form efficiently in close-to central collisions between keV atomic ions and weakly bound clusters of more than 15 C-60-molecules. We observe extraordinarily high yields of C-70 and marked preferences for C-78 and C-84. Larger even-size carbon molecules, C-96-C-180, follow a smooth log-normal (statistical) intensity distribution. Measurements of kinetic energies indicate that C-70-C-94 mainly are formed by coalescence reactions between small carbon molecules and Coo, while C-n with n >= 96 are due to self-assembly (of small molecules) and shrinking hot giant fullerenes.

• 出版日期2010-9-14