1,2-BIRADICALS AS INTERMEDIATES IN THE CYCLODIMERIZATION OF TETRAFLUOROETHYLENE

Authors
BURAVTSEV NN KOLBANOVSKII YA OVSYANNIKOV AA
Citation
Nn. Buravtsev et al., 1,2-BIRADICALS AS INTERMEDIATES IN THE CYCLODIMERIZATION OF TETRAFLUOROETHYLENE, Mendeleev communications, (2), 1994, pp. 48-50
Citations number
6
Categorie Soggetti
Chemistry
Journal title
Mendeleev communications → ACNP
ISSN journal
09599436
Issue
2
Year of publication
1994
Pages
48 - 50
Database
ISI
SICI code
0959-9436(1994):2<48:1AIITC>2.0.ZU;2-A
Abstract
Using kinetic spectroscopy under strictly homogeneous pyrolysis at tem peratures above 800 K, tetrafluoroethylene is shown to convert directl y into a 1,2-biradical, the extinction of the latter being estimated t o be 2 x 10(6) cm2 mol-1 at 250 nm. The significance of the biradical is ascertained in the cyclodimerization mechanism and rate constants f or elementary reactions are estimated.