Chemistry Letters, Vol.30, No.9, 920-921, 2001
Quantitative evaluation of Lewis acidity of zinc ion with tetradentate tripodal ligands in formation of the superoxide complexes
A series of Zn(II)-superoxide complexes containing tetradentate tripodal ligands are generated in the reactions between Zn(II) complexes and superoxide which is produced by the photoinduced reduction of dioxygen by dimeric 1-benzyl-1,4-dihydronicotinamide. The Zn(II)-superoxide complexes have been characterized spectroscopically in order to evaluate the Lewis acidity of Zn(II) ion depending on the ligands used as Cu,Zn-SOD models.