Orientation dependence in C60 surface-impact collisions

Qi Heng Tang, Keith Runge, Hai Ping Cheng, Frank E. Harris

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

The effect of molecular orientation on collisions between C60(buckminsterfullerene) and a solid surface was studied by carrying out simulations based on the Tersoff potential for the C-C interaction and modeling the surface by a structureless wall. Simulations were run with initial molecular kinetic energies of 100 and 300 eV, at impact angles relative to normal incidence of 10° 20°, and 30°. The simple nature of the simulations permitted the examination of thousands of trajectories with random initial C60 orientations, in contrast to all previous studies, which have been highly limited in this respect. The data obtained included information about the redistribution of energy and angular momentum and about collisional fragmentation. The results are strongly dependent upon the initial molecular orientation and lead to wide distributions of the quantities studied. Since structured surfaces are expected to intensify the orientation dependence, it is concluded that one must use a substantial ensemble of trajectories to obtain meaningful average behavior. The ensemble averages are qualitatively similar to relevant experimental results and thereby support the conclusions advanced.

Original languageEnglish (US)
Pages (from-to)893-896
Number of pages4
JournalJournal of Physical Chemistry A
Volume106
Issue number6
DOIs
StatePublished - Feb 14 2002
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Orientation dependence in C<sub>60</sub> surface-impact collisions'. Together they form a unique fingerprint.

  • Cite this