EPR studies of anion-radicals formed by reduction of perfluorinated alpha-triketones with some metals of groups I-III

Authors
Shaposhnikova, EN Sterlin, SR Solodovnikov, SP Bubnov, NN Tumanskii, BL
Citation
En. Shaposhnikova et al., EPR studies of anion-radicals formed by reduction of perfluorinated alpha-triketones with some metals of groups I-III, J FLUORINE, 103(1), 2000, pp. 85-91
Citations number
17
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF FLUORINE CHEMISTRY
ISSN journal
00221139 → ACNP
Volume
103
Issue
1
Year of publication
2000
Pages
85 - 91
Database
ISI
SICI code
0022-1139(200004)103:1<85:ESOAFB>2.0.ZU;2-W
Abstract
Reaction of alpha,beta-bis-fluorosulfatoketones i-C3F7(CFOSO2F)(2)C(O)R-F, (R-F=C2F5, i-C3F7) With AcONa/AcOH afforded perfluoro-alpha-triketones i-C3 F7C(O)C(O)C(O)R-F (RF=C2F5, i-C3F7) Reduction of these triketones with meta ls (Li, Na, K, Mg, Cd, Zn, Tl) in THF was studied by EPR spectroscopy. Anio n-radicals with unsymmetrical distribution of charge and spin densities are formed in one-electron reduction of the triketones. Unlike hydrocarbon cl- polyketones, perfluorinated triketones can undergo three-electron reduction to form paramagnetic allyl tisalkoxides. (C) 2000 Elsevier Science S.A. Al l rights reserved.