The use of the framework flexibility in molecular dynamics (MD) computer simulation of zeolites and related materials is discussed in detail and from different perspectives. Once ascertained that a flexible framework is needed to ensure, in the micro-canonical ensemble, the exact, in principle, conservation of linear momentum of the simulated system, the practical effects of keeping the framework fixed on several simulated quantities and processes are described. In particular, the diffusivity, the activated processes, the framework deformations and the approximations arising from using classical instead of quantum mechanics are considered.

A comment on the flexibility of framework in molecular dynamics simulations of zeolites / Demontis, Pierfranco; Suffritti, Giuseppe Baldovino. - In: MICROPOROUS AND MESOPOROUS MATERIALS. - ISSN 1387-1811. - 125:1-2(2009), pp. 160-168. [10.1016/j.micromeso.2009.03.032]

A comment on the flexibility of framework in molecular dynamics simulations of zeolites

DEMONTIS, Pierfranco;SUFFRITTI, Giuseppe Baldovino
2009-01-01

Abstract

The use of the framework flexibility in molecular dynamics (MD) computer simulation of zeolites and related materials is discussed in detail and from different perspectives. Once ascertained that a flexible framework is needed to ensure, in the micro-canonical ensemble, the exact, in principle, conservation of linear momentum of the simulated system, the practical effects of keeping the framework fixed on several simulated quantities and processes are described. In particular, the diffusivity, the activated processes, the framework deformations and the approximations arising from using classical instead of quantum mechanics are considered.
2009
A comment on the flexibility of framework in molecular dynamics simulations of zeolites / Demontis, Pierfranco; Suffritti, Giuseppe Baldovino. - In: MICROPOROUS AND MESOPOROUS MATERIALS. - ISSN 1387-1811. - 125:1-2(2009), pp. 160-168. [10.1016/j.micromeso.2009.03.032]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/78622
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 55
  • ???jsp.display-item.citation.isi??? 52
social impact