Translational–orientational coupling during passage of methane through the bottleneck in zeolite A

Chitra, R and Kumar, Anil AV and Yashonath, S (2001) Translational–orientational coupling during passage of methane through the bottleneck in zeolite A. In: Journal of Chemical Physics, 114 (1). pp. 11-14.

Preview

PDF Translational_orientational.pdf Download (84kB)

Abstract

Diffusion of a five-site model of methane within porous zeolite A has been investigated by molecular dynamics simulation using potential available in the literature. Equilibrium and dynamical quantities especially those relating to the orientational degrees of freedom of methane have been computed. Methane exhibits interesting orientational preference during intercage diffusion through the eight-membered window which is the rate determining step for diffusion. A predominance of (2+2) orientation in place of (1+3) orientation is seen suggesting a strong translational–orientational coupling. This suggests that orientational motion might strongly influence the translational diffusivity of methane.

Item Type:	Journal Article
Publication:	Journal of Chemical Physics
Publisher:	American Institute of Physics (AIP)
Additional Information:	The DOI is currently only displayed. Copyright for this article belongs to American Institute of Physics (AIP)
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit Division of Interdisciplinary Sciences > Supercomputer Education & Research Centre
Date Deposited:	01 Jun 2004
Last Modified:	19 Sep 2010 04:12
URI:	http://eprints.iisc.ac.in/id/eprint/244

Actions (login required)

View Item