Dependência das vias de dissociação unimolecular com a energia interna da molécula de éter dimetílico

Rodrigo Peres; Harrald Victor Linnert

Advanced search

Search - Use quotation marks to get a more specific result

Index

Field of knowledge

Start date

Betweenand

(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Internal energy dependence of the unimolecular dissociation channels of dimethyl ether

Full text
Author(s):	Rodrigo Peres ^[1] ; Harrald Victor Linnert ^[2] Total Authors: 2
Affiliation:	^[1] Universidade de São Paulo. Instituto de Química ^[2] Universidade de São Paulo. Instituto de Química Total Affiliations: 2
Document type:	Journal article
Source:	Química Nova; v. 27, n. 1, p. 42-45, 2004-02-00.
Abstract
Internal energy dependence of the competitive unimolecular dissociation channels of dimethyl ether were studied with the statistical RRKM formalism. The C-O and C-H fission reactions and the 1,2-H and 1,3-H shifts, and 1,1-H2 and 1,3-H2 molecular eliminations are discussed as a function of energy dependence of k a(E*), the microcanonical rate constant for production of transition states. C-O fission is the dominant process while reaction channels involving C-H fission, 1,1-H2 and 1,3-H2 elimination and production of MeOH should be competitive at energies around 400 kJ mol-1. The less favorable process is the channel of CH4 formation. (AU)

Short URL