Collect. Czech. Chem. Commun.
1983, 48, 2525-2530
https://doi.org/10.1135/cccc19832525
Anion radicals of beta diketonates
Andrej Staško, Ľubomír Malík, Peter Pelikán and Ján Reguli
Department of Physical Chemistry, Slovak Institute of Technology, 812 37 Bratislava
Abstract
Formation of anion radicals [RCOCHCOR']- with R ≡ R' = Me, i-Pr, t-Bu, and with R = Me, R' = Ph has been observed in reactions of beta diketonates wih Grignard reagents. The splitting constant of the methine proton is 0.26 mT, and that of the methyl protons is 1.2 mT if R ≡ R' = Me. According to INDO calculations the anion radical is stabilized with Ni2+ counterion in tetrahedral arrangement.
