BIRADICAL INTERMEDIATES IN TETRAFLUOROETHYLENE DISSOCIATION AND DIFLUOROCARBENE RECOMBINATION

Authors
BURAVTSEV NN KOLBANOVSKII YA OVSYANNIKOV AA
Citation
Nn. Buravtsev et al., BIRADICAL INTERMEDIATES IN TETRAFLUOROETHYLENE DISSOCIATION AND DIFLUOROCARBENE RECOMBINATION, Mendeleev communications, (5), 1994, pp. 190-191
Citations number
6
Categorie Soggetti
Chemistry
Journal title
Mendeleev communications → ACNP
ISSN journal
09599436
Issue
5
Year of publication
1994
Pages
190 - 191
Database
ISI
SICI code
0959-9436(1994):5<190:BIITDA>2.0.ZU;2-Z
Abstract
Tetrafluoroethylene pyrolysis has been studied under the strictly homo geneous conditions of a free-piston monopulse adiabatic compression se t-up, and biradical intermediate CF2-CF2 is shown to precede CF2 forma tion. The rate constant for biradical decomposition into two CF2 speci es is estimated to be k4 = 10(13.5+/-0.1) exp(-201 +/- 8 kJ mol-1/RT) s-1. Based on the detailed equilibrium principle CF2 recombination is proposed to take place through biradical formation.