Manganese(II) and Copper(II) hexafluoroacetylacetonate 1:1 complexes with 5-(4-[N-tert-Butyl-N-aminoxyl]phenyl)pyrimidine: regiochemical parity analysis for exchange behavior of complexes between radicals and paramagnetic cations - Field, Lora M.; Lahti, Paul M.; Palacio, Fernando; Paduan-Filho, Armando (Journal of the American Chemical Society, 2003)