Redox behavior of nitro substituents of cage complexes

摘要: The redox behavior of nitro groups bonded in the apical positions sar (sar=3,6,10,13,16,19-hexaazabicyclo[6.6.6]icosane) cage complexes is very diverse. Nitroso, hydroxylamine, amine, and radical anions result as primary products from such reductions, depending on type reductant, pH, solvent, amount reductant supplied. ultimate reduction with Zn/HCl contain amine substituents, whereas reductions Sn 2+ /HCl or S 2 O 4 2− , electrochemical at a Hg-pool electrode, yield hydroxylamine-substituted