Complex of chlorine dioxide with TEMPO and its conversion into oxoammoniumsalt

Complex formation between chlorine dioxide and 2,2,6,6-tetramethylpiperidin e-1-oxyl (TEMPO) and its thermodynamic characteristics were studied in a nu mber of organic solvents. The complex was shown to transform into the oxoam monium salt. The kinetics of this reaction were studied, and the equilibriu m constants of the TEMPO . ClO2 complex, determined by direct measurements and from kinetic data, were found to be in good agreement. The electronic s tructure of the complex is discussed in the light of recent theoretical res ults. Copyright (C) 2000 John Wiley & Sons, Ltd.