DETERMINATION OF ENTHALPIES OF FORMATION OF ORGANIC FREE-RADICALS FROM BOND-DISSOCIATION ENERGIES - 2 - HALOSUBSTITUTED RADICALS

Authors
ORLOV YD ZARIPOV RK LEBEDEV YA
Citation
Yd. Orlov et al., DETERMINATION OF ENTHALPIES OF FORMATION OF ORGANIC FREE-RADICALS FROM BOND-DISSOCIATION ENERGIES - 2 - HALOSUBSTITUTED RADICALS, Russian chemical bulletin, 47(4), 1998, pp. 621-624
Citations number
23
Categorie Soggetti
Chemistry
Journal title
Russian chemical bulletin → ACNP
ISSN journal
10665285
Volume
47
Issue
4
Year of publication
1998
Pages
621 - 624
Database
ISI
SICI code
1066-5285(1998)47:4<621:DOEOFO>2.0.ZU;2-9
Abstract
The enthalpies of formation (Delta H(f)degrees) for 23 halosubstituted radicals were determined from the published data on bond dissociation energies. The Delta H(f)degrees values of the corresponding molecules necessary for the calculation of Delta H(f)degrees of the radicals we re taken from handbooks or calculated by the additive-group method. Th e conjugation energies of the radicals are calculated, and the effect of substituents at the pi-system on these values was shown. Errors of determination of the Delta H(f)degrees values of the radicals were est imated.